Sonance 93540 DSP Amplifier 2-Channel DSP2750MKIII User Manual

TWO-CHANNEL POWER AMPLIFIER WITH SONARC V2

DSP 2-750 MKIII

INSTALLATION AND SUPPORT MANUAL

DSP 2-750 MKIII

OUT

L&R

Use Only One Type Of Input Connection

ANALOGANALOG

ANALOG

COAX

TOSLINK

TWO-CHANNEL POWER AMPLIFIER

DSP 2-750 MKIII AMPLIFIER

TABLE OF CONTENTS

2 Box Contents

2 Introduction

2 Important Safety Information

3 Product Description

3 Placement

3 Unpacking and Record Keeping

4 Front and Rear Panel Features

5 Power the Amplier

6 Speaker Connections

6 Bridging Channels

7 Volume Level Control

7 Protecting Circuitry, LEDs, and Speakers

8 Rack Ear Installation

8 Amplier Stacking

8 Sonarc SetUp

15 Specications

16 Appendix A and B

17 Troubleshooting

19 Warranty Statement

FRONT VIEW

BACK VIEW

BOX CONTENTS

(1) Quickstart Guide

(1) Network Connection Instructions

(1) Sonance DSP 2-750 MKIII Amplier

(1) IEC Power Cord

(4) Removable Amp Feet

(2) Rack Ears

INTRODUCTION

Thank you for selecting the Sonance DSP 2-750 MKIII

amplier. Sonance has over three decades of experience

in premium distributed audio amplication. The

amplier has been precision engineered to provide

maximum installation exibility, low energy consumption

and audiophile sound in a compact form factor (2RU).

Please take the time to carefully read through the

manual, study the illustrations and system diagrams.

This extra time can lead to trouble free operation and

continued musical enjoyment.

READ THIS SECTION IN ITS ENTIRETY BEFORE

ATTEMPTING USE OF THIS AMPLIFIER

IMPORTANT SAFETY INSTRUCTIONS

ALWAYS FOLLOW THESE BASIC SAFETY PRECAUTIONS

WHEN USING YOUR AMP TO REDUCE THE RISK OF

FIRE, ELECTRIC SHOCK, AND INJURY TO PEOPLE OR

OBJECTS.

1. Read all the safety and operating instructions before

operating the amplier and retain them for future

reference.

2. Adhere to all warnings and precautions listed on the

amplier and in the operating instructions.

3. Follow all operating instructions.

4. Never use the amplier next to water.

5. Use only with a cart or stand that is recommended

by the manufacturer. Move with care.

6. CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT

USE THE POLARIZED PLUG WITH AN EXTENSION

CORD, RECEPTACLE, OR OTHER OUTLETS UNLESS

THE BLADES CAN BE FULLY INSERTED TO PREVENT

BLADE EXPOSURE.

7. Ventilation: situate the amplier so that its location

does not interfere with its proper ventilation.

8. Heat: situate the amplier away from heat sources

such as radiators, stoves, etc. (including ampliers).

9. Grounding or Polarization: take precautions so that

these attributes are not defeated.

10. Power-Cord Protection: route power supply cords so

they will not be walked on or pinched by items.

11. Cleaning: use ‘canned air’ or wipe the amplier with

a soft cloth. Do not use solvents, as they may damage

the amplier.

12. Non-Use Periods: unplug the amplier’s power cord

from the outlet when the amplier will be left un-

used for a long period of time.

13. Object Entry: take care so that objects do not fall

through the opening of the enclosure.

14. Moisture: do not expose the amplier to dripping or

splashing. Do not place objects lled with liquids (ex.

vases, drinking glasses) on the amplier.

15. Damage Requiring Service: have the amplier

serviced by a qualied service technician when the

power cord or power supply is damaged, dropped,

the enclosure is damaged, something has spilled

into the amplier, it has been exposed to rain, or the

amplier is not operating properly.

16. Servicing: do not attempt to self service the amplier.

Contact Sonance Tech Support for servicing options.

17. Power Requirement: do not connect the Sonance

amplier to the accessory outlet of any other

component. Connection to a grounded mains power

outlet is required.

WARNING: THE POWER MAINS PLUG SERVES AS THE

AMPLIFIER’S DISCONNECT DEVICE. THE DISCONNECT

DEVICE SHALL REMAIN READILY OPERABLE DURING

OPERATION. TO ENSURE THAT THE DISCONNECT

DEVICE IS EASILY ACCESSIBLE, THE USER SHALL NOT

PLACE THE AMPLIFIER IN A CONFINED AREA DURING

OPERATION.

18. Storms: to prevent damage to components, unplug

all electronic equipment during thunderstorms.

19. Unplug by grasping the plug; do not pull on the cord.

WARNING: ANY CHANGES OR MODIFICATIONS TO

THIS UNIT NOT EXPRESSLY APPROVED BY THE PARTY

RESPONSIBLE FOR COMPLIANCE COULD VOID THE

USER’S AUTHORITY TO OPERATE THE EQUIPMENT.

NOTE: THIS EQUIPMENT HAS BEEN TESTED AND

FOUND TO COMPLY WITH THE LIMITS FOR A CLASS B

DIGITAL DEVICE, PURSUANT TO PART 15 OF THE FCC

RULES. THESE LIMITS ARE DESIGNED TO PROVIDE

REASONABLE PROTECTION AGAINST HARMFUL

INTERFERENCE IN A RESIDENTIAL INSTALLATION. THIS

EQUIPMENT GENERATES, USES, AND CAN RADIATE

RADIO FREQUENCY ENERGY AND IF NOT INSTALLED

AND USED IN ACCORDANCE WITH THE INSTRUCTIONS,

MAY CAUSE HARMFUL INTERFERENCE TO RADIO

COMMUNICATIONS. THERE IS NO GUARANTEE THAT

INTERFERENCE WILL NOT OCCUR IN A PARTICULAR

INSTALLATION. IF THIS EQUIPMENT DOES CAUSE

HARMFUL INTERFERENCE TO RADIO OR TELEVISION

RECEPTION, WHICH CAN BE DETERMINED BY

TURNING THE EQUIPMENT OFF AND ON, THE

USER IS ENCOURAGED TO TRY TO CORRECT THE

INTERFERENCE BY ONE OR MORE OF THE FOLLOWING

MEASURES:

• Connect the equipment into an outlet on a

circuit different from that to which the receiver is

connected

• Consult the dealer or technician for help

• Reorient or relocate the receiving antenna

• Increase distance between the equipment and

receiver

PRODUCT DESCRIPTION

The DSP 2-750 MKIII provides the same powerful DSP

capabilities as the rest of the DSP series, with the largest

power output capability. The amplier is rated at 500W

per channel into 8 ohm loads, 750W per channel into 4

ohm loads and 2000W per bridged pair of channels into

8 ohm loads. The internal stereo amplier modules are

audiophile grade, high-efciency Class D. The ampli-

er is congurable for stereo (4 or 8 ohm speakers) and/

or bridged operation (8 ohm speakers only). Bridged

operation is useful for higher power output applications

such as driving a passive subwoofer or an outdoor 8 ohm

satellite and subwoofer system. The DSP 2-750 MKIII has

a comprehensive protection circuit that guards against

shorted outputs, over-current, over-temperature, low AC

voltage (brownouts) and excessive AC voltage.

PLACEMENT

The DSP 2-750 MKIII features fan-assisted cooling

utilizing vents on both sides of the chassis. Ensure the

sides of the amplier have a least 3” (75mm) of clearance

to the sides of the rack or equipment cabinet to allow

for proper air ow. The amplier should be placed in

a dry, non-condensing environment with ventilation.

Locate the amplier so it is completely isolated from

temperature extremes, rain, snow, direct sunlight, and

atmospheric contaminants. Do not locate the amplier

outdoors. Any moisture related damage (such as from

condensation) is not covered by the factory warranty.

The amplier includes fan-assisted cooling, some heat

is still produced. Locate the amplier on a shelf or at

the lowest place in a rack that has good circulation of

fresh air to dissipate heat. Do not place the amplier in a

closed cabinet or closet with little ventilation as this can

reduce its service life.

UNPACKING AND RECORD KEEPING

Save the carton and packing inserts for future safe

transport in case the amplier is moved or requires

shipping for repair. Before proceeding with installation,

locate the serial number on the rear panel of the unit

and note it here for future reference:

S/N:_____________________________________________

Date of Sale:______________________________________

Dealer Name:_____________________________________

Contact Info:______________________________________

DSP 2-750 MKIII FRONT PANEL

DSP 2-750 MKIII

OUT

L&R

Use Only One Type Of Input Connection

ANALOGANALOG

ANALOG

COAX

TOSLINK

Figure 4: DSP 2-750 MKIII Two-Channel Power Ampliﬁer Rear Panel

DSP 2-750 MKIII

OUT

L&R

Use Only One Type Of Input Connection

ANALOGANALOG

ANALOG

COAX

TOSLINK

Figure 3: DSP 2-750 MKIII Two-Channel Power Ampliﬁer Front Panel

1 2

Rear Panel

3. Analog Input/Output Module

4. Reset Button

5. Voltage Trigger

6. IR Control Input

7. AC Fuse Holder

8. Speaker Output

9. AC Input

Front Panel

1. Illuminated Power Button

2. Active Audio and Protection Indicator

FRONT PANEL

POWER BUTTON

The power button turns the amplier on and off. The

Sonance logo power button has three settings:

• SOLID WHITE means the amplier is engaged. The

amplier has power, is turned ON and ready to

operate.

• SLIGHTLY DIMMED means the amplier is in sleep

mode.

• BLINKING WHITE means the power supply is in

thermal protection. In this situation, the channel

LEDs also illuminate red, indicating that the power

supply is in thermal protection mode.

NOTE: UPON INITIAL POWER UP, THERE WILL BE A

20-30 SECOND DELAY BEFORE SOUND IS HEARD

DURING THE BOOT UP CYLE. THE INDICATOR LEDS WILL

ILLUMINATE RED, THEN GREEN, THEN GO OUT. THIS IS

NORMAL.

INPUT/OUTPUT LIGHTS

When each channel is active:

• GREEN LED means a signal is present.

• BLINKING RED Input/Output LED indicates that the

associated channel is being over-driven.

• SOLID RED Input/Output LED indicates that the

amplier is in protect mode. While in protect mode,

the LEDs periodically light up green. This retests

output to determine if the issue is resolved. Protect

mode could be caused by a short in the wire,

amplier overheating, or other internal problem.

NOTE: WHEN ANY OF THE LEDS ARE RED, TURN THE

AMPLIFIER OFF IMMEDIATELY. DETERMINE THE CAUSE

OF THE PROBLEM BEFORE TURNING THE AMPLIFIER

BACK ON.

CAUTION: FOR CONTINUED PROTECTION AGAINST

FIRE, REPLACE THE FUSE WITH ONLY THE SAME TYPE

AND RATING.

VOLUME LEVEL CONTROL

Each channel on the amplier has volume adjustments

controlled in the SonARC software. The DSP 2-750 MKIII

amplier ships at the +0dB or moderate volume level.

REAR PANEL

LINE INPUTS/LOOP OUTPUTS

The DSP 2-750 MKIII amplier has line inputs and loop

outputs. The analog loop outputs are non-buffered. The

maximum number of ampliers that can be looped

together depends on the output capability of your source

component.

SPEAKER CONNECTIONS

The removable block connectors used on the amplier

accept up to a 12-gauge wire. Follow the connection

layout on the rear panel of the amplier. Make sure

no bare wires come in contact with the amplier

chassis. When bridging channels, use the two outside

connections on each connector. The positive wire from

the speaker should be on the left side connection and

the negative connection should be on the right side.

IP CONTROL

IP control is via the RJ-45 input. IP controls power On/Off,

volume, muting, and input source selections for either

global control or group control.

AC FUSE HOLDER

To replace the fuse, unplug the power cord from the

Power Cord Connector and use a screwdriver to remove

the fuse holder.

POWER CORD

The DSP 2-750 MKIII features a removable power cord.

Plug the female end of the power cord into the Power

Cord Connector on the amplier rear panel and plug the

male end into a grounded wall socket.

Do not plug the amplier’s power cord into a

convenience outlet on any other audio or video

component. If you need to use an extension cord, use

only a heavy duty (14 gauge or larger) extension cord to

avoid starving the amplier of the current necessary for

full operation.

POWERING THE AMPLIFIER

The DSP 2-750 MKIII features a removable IEC power

cord (see Figure 3). A 14-gauge EIA standard 120 volt

grounded power cable is included with the amplier.

Each time the amplier’s power cord is initially plugged

in and the power switch is turned ON, all channel

outputs are disconnected for approximately 9-12 seconds

and all PROTECTION LEDs illuminate briey while the

amplier boots up.

If the electrical service is subject to frequent sags, spikes

or brownouts, a power conditioner designed for use with

high delity equipment should be employed to protect

the amplier.

CAUTION: FOR CONTINUED PROTECTION AGAINST

FIRE, REPLACE THE FUSE WITH ONLY THE SAME TYPE

AND RATING.

Figure 3: IEC Power Cord Connection

IMPORTANT: DO NOT PLUG THE POWER CORD INTO

THE WALL OUTLET UNTIL ALL SYSTEM CONNECTIONS

HAVE BEEN MADE AND VERIFIED.

MODEL INPUT VOLTAGE

OUTPUT POWER

(SINEWAVE)

DRAW WATTS

15 AMP BREAKER

QTY OF AMPS

20 AMP BREAKER

QTY OF AMPS

DSP 2-750 MKIII

North America

SKU: 93540

International

SKU: 93541

100-120V AC

Full Power All Channels @8 ohms 1200 1 1

Full Power All Channels @4 ohms 1850 NA 1

1/8 Power All Channels @8 ohms 210 - -

1/8 Power All Channels @4 ohms 290 - -

@ Idle 37

- -

Sleep Mode 1.5

- -

Voltage or Green Audio 0.4

- -

INPUT VOLTAGE

OUTPUT POWER

(SINEWAVE)

DRAW WATTS

13 AMP BREAKER

QTY OF AMPS

20 AMP BREAKER

QTY OF AMPS

220-240V AC

Full Power All Channels @8 ohms 1200 1 2

Full Power All Channels @4 ohms 1950 1 2

1/8 Power All Channels @8 ohms 200 - -

1/8 Power All Channels @4 ohms 290 - -

@ Idle 35

- -

Sleep Mode 1.1

- -

Voltage or Green Audio 0.5

- -

OPTION 1: PRIMARY LINE INPUTS 1-L, 1-R

Use these inputs for primary audio source.

OPTION 2: SECONDARY LINE INPUTS 2-L, 2-R

Use these inputs for a secondary audio source, paging or

a doorbell.

AMPLIFIERS POWER REQUIREMENTS:

Figure 4: DSP 2-750 MKIII Left and Right Line Inputs

Figure 5: DSP 2-750 MKIII Two-Channel Amplier Power Requirements

DSP 2-750 MKIII

OUT

L&R

Use Only One Type Of Input Connection

ANALOGANALOG

ANALOG

COAX

TOSLINK

Plug the female end of the power cable into the Power

Connector on the amplier’s rear panel and plug the

male end directly into a grounded 15 amp or 20 amp

wall outlet.

IMPORTANT: DO NOT PLUG THE AMPLIFIER’S POWER

CORD INTO A CONVENIENCE OUTLET ON ANY OTHER

AUDIO OR VIDEO COMPONENT

SOURCE CONNECTIONS SELECTION

There are two options when connecting audio inputs to

the DSP 2-750 MKIII amplier (see Figure 4).

For the best sound you should

use premium speaker wire that

complies with re rating codes.

Be sure to check local codes

governing wire that may be

installed within walls or ceilings.

Ampliers are stable with any

reputable brand of speaker

wire or cable. The amplier uses

speaker block connectors that

can accommodate up to 12

SPEAKER CONNECTIONS

Figure 6: Speaker

Connections

NOTE: ALWAYS CHECK LOCAL BUILDING CODES

BEFORE INSTALLING WIRE IN WALLS OR CEILINGS.

BRIDGING CHANNELS

IMPORTANT: THE MINIMUM SPEAKER IMPEDANCE FOR

BRIDGED OPERATION IS 8 OHMS. DO NOT OPERATE A

ZONE IN THE BRIDGED MODE INTO A SPEAKER THAT IS

LESS THAN 8 OHMS NOMINAL IMPEDANCE.

Use the SonARC software to Bridge Channels. On the

second page in the software under IN/OUT settings, go

to the output setup area to Bridge Mode and make your

selections with the drop-down buttons.

1. Use the left audio input when operating the

amplier’s output in bridge mode (see Figure 7).

2. Select ON in the bridge mode (see Figure 7).

3. Connect the speaker’s “+” lead to the left side of the

connector marked “+” (see Figure 8).

DSP 8-130 MKIII

gauge wire (see Figure 6).

VOLUME LEVEL CONTROL

The volume controls balance the desired sound levels per

channel. Volume can be controlled three different ways

with SonARC V2 (see Figure 9).

1. Output Volume

2. Turn On Volume

3. Maximum Volume

Output volume ranges between -70 to 12. The volume

level controls are set at +0dB by default.

Figure 9: SonARC Page In/Out Settings Output Volume

Figure 7: Bridging Channels

Figure 8: Bridging Channels

4. Connect the speaker’s “–” lead to the right side of the

connector marked “+” (see Figure 8).

5. Connect the line level audio input to the left channel

input on the amplier.

IMPORTANT: USE CAUTION WHEN SETTING VOLUME

LEVELS EITHER ON THE AMPLIFIER OR AN AUDIO

SWITCHER AS NOT TO OVERDRIVE AND POSSIBLY

DAMAGE SPEAKERS. VERIFY ALL SOURCES AS OUTPUT

VOLTAGE VARIES FROM DEVICE TO DEVICE.

PROTECTION CIRCUITRY AND LEDS

The ampliers have a multi-stage protection system to

prevent damage to your amplier and speakers.

AMPLIFIER CHANNEL PROTECTION

If a channel encounters a short-circuit or extremely low

impedance, the affected channel outputs automatically

mute. The output of the affected channel remains muted

until the fault is corrected. Only the affected channel

outputs mute; all other channels continue to operate

normally.

NOTE: IN BRIDGE MODE, THE PROTECTION CIRCUITRY

SENSES A SHORT CIRCUIT ACROSS BOTH POSITIVE

SPEAKER TERMINALS.

AMPLIFIER CHANNEL PROTECTION INDICATION

Dual-color LEDS on the front panel of the DSP 8-130 MKIII

illuminate to indicate the current operating status of each

amplier channel.

• BLINKING RED indicates that the channel is being

over driven.

• SOLID RED indicates that the amp is in protect mode.

While in protect mode the LED lights periodically light

green to retest the output to determine if the short has

been removed. Protect mode could be caused by a short

in the wire, overheating of the amplier or possibly an

internal problem with the amplier.

If the amplier senses a very low impedance or a short on

its outputs, then it mutes its output and the protection

LEDs turn red. The output remains muted until the fault is

cleared. Check the rear panel block connector for shorted

wire strands or reduce the number of speakers connected

in parallel to the amplier outputs. Sonance ampliers

are rated for a 4 ohm load or higher, such as two pair of 8

ohm speakers.

AMPLIFIER POWER SUPPLY PROTECTION

The amplier also has protection for the power supply.

If the power supply heat sink temperature exceeds the

design maximum, the protection circuit will activate,

disconnecting all channel outputs. This is indicated by a

blinking light on the front panel power switch.

IMPORTANT: OPERATING THE AMPLIFIER WITH

ONE OR MORE CHANNELS IN PROTECT MODE FOR

AN EXTENDED PERIOD OF TIME CAN DAMAGE THE

AMPLIFIER.

IMPORTANT: WHENEVER THE PROTECTION CIRCUITS

ARE TRIGGERED, UNPLUG THE AMPLIFIER’S

POWER CORD FROM THE WALL OUTLET BEFORE

TROUBLESHOOTING.

RACK EAR INSTALLATION

Accessory Rack Ears are included with the DSP 2-750

MKIII. Unscrew the four Phillips head screws (M4 x 0.7

pitch x 10mm long) found on each side of the left and

right forward section of amplier. Use these screws to

connect the included rack ears to the amplier (see

Figure 10).

1R1L

DSP 2-750 MKIII

Figure 10: Rack Ear Installation

AMPLIFIER STACKING

The DSP 2-750 MKIII is capable of being directly stacked

with the feet removed for use in low to moderate

output applications (see Figure 11). For high-output

applications, it is recommended to leave at least 1U space

between ampliers for increased ventilation. It is not

recommended to stack more than three ampliers high

without spacing.

DSP 2-750 MKIII

DSP 8-130 MKIII

Figure 11: Front View Stacked Conguration x 3

CONNECTING TO YOUR SONARC

HOMEPAGE

1. The amplier’s factory default settings has DHCP set

to ON.

2. Connect the amplier to a network with a router.

Make sure the computer and amplier are on the

same network.

3. Turn on the amplier.

4. The router issues an IP address to the amplier.

5. Use an IP scanner to determine the IP address of

the Sonance DSP amplier on the network. We

recommend Fing app for IOS, Advanced IP Scanner

for Windows devices and LanScan for macOS.

6. Network devices will show up and the amplier will

be named Sonance.

7. Open Safari or Chrome.

8. In the URL address window at the top, enter the IP

address of the Sonance DSP amplier to congure.

SONARC SOFTWARE NETWORK

CONNECTION INSTRUCTIONS

SONARC HOMEPAGE

SETUP OPTIONS

The SonARC homepage will have two options for setup:

Basic Setup and Advanced Setup. Amplier name can be

entered by the installer.

EQUIPMENT LIST

(1) Computer or Tablet

(1) Network Router with DHCP Service Enabled

(2) RJ-45 Cables (one when using wireless)

SONARC LEGEND

Toggle/Pull-Down

Free Type

Field

Single Action

BASIC SETUP PAGE

This page is for basic setup of EQ, source and volume. To

start, click on the Basic Setup button.

DSP PRESET ASSIGNMENT

ASSIGN PRESET

Click on the individual channels to show the drop-down

menu of preset options. Once you locate the preset for

your Sonance speakers, click on the name to set the

preset. Each Sonance DSP amplier has 50 slots, with

pre-congured DSP curves for Sonance speaker models

pre-loaded. If the speaker model in your application

is not on the pre-loaded list, hundreds of DSP les

are available for download from the Sonance website.

Download the preset le for additional Sonance speaker

models at: www.sonance.com/electronics/ampliers/dsp

INPUT SOURCE

Pull down menu allows you to select which input you

would like to assign to the channel.

INPUT SETTINGS/SOURCE SELECT

INPUT NAME

User entered eld with a maximum of 15 characters. Use

these elds to describe the type of input connected.

OUTPUT VOLUME (BASIC SETUP)

Play music with wide dynamics and bass that will not

stress the system.

1. Start with the output volume for both 1L and 1R set

at -30.

2. Slowly increase the volume up towards 12 and listen

for any distortion or strain from the speakers. When

you hear any distortion, reduce the volume one or

two steps below this value.

3. Set this volume number for both channels. This

provides maximum system performance and

protects the speakers from being damaged by

amplier clipping and over-excursion of the woofers.

NOTE: LEFT AND RIGHT CHANNELS ARE LINKED.

OUTPUT VOLUME IS LINKED TO TURN ON VOLUME IN

BASIC SETUP.

ADVANCED SETUP PAGE

This page in SonARC allows you to make advanced

changes to the your ampliers settings and conguration.

To start click on the Advanced Setup button from your

amplier’s homepage.

GENERAL SETTINGS TAB

The Advanced Setup automatically starts out on the

General Settings tab. This tab is used to set up the

amplier with a network connection, auto on method

and other basic information.

IDENTIFY AMPLIFIER

ID AMPLIFIER MODE

When the power switch is turned ON, the power button

on the front of the amplier ashes to indicate which

amplier you are programming. This makes the amplier

easy to identify in a multiple amplier installation.

INFO

User entered eld with a maximum of 15 characters to

name the amplier. The basic setup is complete.

OUTPUT SETTINGS/OUTPUT VOLUME

OUTPUT NAME

The Output Name is a 15 character user entered eld. Use

this eld to enter the name that describe the room or

area the channel will be powering.

IP SETUP

DHCP ON/OFF

DHCP ON/OFF is the rst option in IP setup. All Sonance

DSP series ampliers ship with DHCP (Dynamic Host

Connection Protocol) ON. In most installations DHCP

should be left ON except when you are using a control

system for IP control. If you are controlling the DSP series

amplier using IP, then we suggest you turn DHCP OFF

and use a static IP address.

IP ADDRESS

The second setting in the IP Setup section is the IP

address. When DHCP is ON, the current IP address will be

displayed. To change the IP address set the DHCP to OFF.

When DHCP is turned off the IP address that the router

assigned to the amplier continues to be applied. This IP

address is a good place to start since it is not being used

by another network device. If you wish to change the IP

address, you should perform a scan of the network and

only assign an unused IP address within the range of

PASSWORD PROTECTION

The SonARC Interface can be protected with an

additional password. The password feature is disabled as

a factory default, but enabling and setting a password

will increase the security of the settings on the amplier.

Enabling the password will open the Update Password

page. The password requires a minimum of eight

characters. If the password requirements are not met, or

the password does not match in the conrmation box,

SonARC will show an error message.

Once a password has been set, the password screen

will appear whenever a new web connection is made.

The username will always be “sonance”. If an incorrect

password is used three times in a row, a ve minute

cooldown period will be required.

NOTE: RESETTING THE NETWORK SETTINGS OR

FACTORY RESETTING THE AMPLIFIER WILL CLEAR AND

DISABLE THE PASSWORD SETTING (SEE APPENDIX A).

BACKUP RESTORE

The green BACKUP and RESTORE buttons take all of the

settings of the amplier, including the DSP settings, and

encapsulates them into one le. This allows the transfer

of settings into another amplier of the same model with

the same rmware version. This is a proprietary le type

(.bin le), agnostic to PC or Mac.

your router. As a general rule, only change the last three

digits of the IP address in the amplier settings and only

assign numbers between two and 254. This suggestion

minimizes the chance of making the amplier

inaccessible. It is critical to type in the correct IP address.

If the wrong IP address is entered, the amplier could

become inaccessible. Make changes to the IP settings

only if you fully understand network setup.

RESETTING DHCP

If the IP address is not known and the amp is locked out,

use the DHCP reset method in Appendix A.

IP SUBNET MASK

The third setting in the IP Setup section is the IP Subnet

Mask. This is an advanced network setup function. Under

most circumstances, this eld should not need to be

edited. Changes in this eld should only be made by an

experienced network administrator.

ID AMPLIFIER MODE

When the power switch is turned ON, the power button

on the front of the amplier ashes to indicate which

amplier is being are programmed. Making the amplier

easy to identify in a multi-amp installation.

The print button will output a complete list of all settings

for the amplier. It is always a good idea to keep a

backup hard copy of the settings for each installation.

AUTO ON, POWER SAVING, & SLEEP

MODE

Select the Auto On method you would like to use with

the blue pull-down menu. During setup it is strongly

recommended that you keep the Auto On method

set to POWER BUTTON to prevent the amplier from

shutting off. You can return at anytime to the Auto On

setting and select the nal method of Auto On for your

installation. When controlling the amplier using IP and

IR commands we suggest using the Power Button Auto

On mode. See Appendix B. Power consumption in Sleep

Mode is less than 0.5W.

AUDIO

In the Audio Auto On mode, there are three sleep mode

options (off, 15 minutes, three hours). Each channel has

an independent sleep mode setting. The sleep mode is

triggered by an audio sensing circuit on each channel of

the amplier. The minimum input sensing level is 0.5mV.

AUDIO GREEN

In the Audio Auto On mode the amplier will sleep after

15 minutes without an audio signal present on any of the

channels. When an audio signal is applied the amplier

will take approximately 9-12 seconds for the amplier

to reproduce audio after going through its power up

sequence. In the audio Auto ON mode the sleep function

is active, see sleep mode note below. This mode complies

with EU energy saving standards when the network

connection is inactive.

NOTE: WHEN AUDIO GREEN MODE IS ENABLED AND

THE AMPLIFIER IS ASLEEP, THE NETWORK INTERFACE

WILL BE DISABLED IF NO CONNECTION IS PRESENT.

IN THIS CASE, IP COMMANDS CANNOT BE RECEIVED

UNTIL THE AMPLIFIER WAKES UP FROM AN ANALOG

AUDIO INPUT.

POWER BUTTON

When sleep mode is set to OFF the channel remains

active at all times. Use the sleep mode OFF setting for

audio signals (doorbell or paging) where audio must be

reproduced immediately at any time.

VOLTAGE

Amplier will sleep immediately when the trigger

voltage has been removed. When a 3-12V DC voltage or

DC voltage is sent to the amplier, it will take six to eight

seconds for the amplier to reproduce audio after going

through its power up sequence.

VOLTAGE GREEN

Amplier will sleep immediately when the trigger

voltage has been removed. When a 3-12V DC voltage or

DC voltage is sent to the amplier it will take six to eight

seconds for the amplier to reproduce audio after going

through its power up sequence. In Voltage Green mode

the Ethernet connection is not active when the amplier

is off! This mode complies with EU energy saving

standards.

SLEEP MODE

Sleep mode allows you to select how long the amplier

will stay active after the Auto ON method ceases.

OFF MODE

When set in the OFF mode the channel will be active

at all times. Use the OFF setting for audio signals like a

doorbell or paging where audio must be reproduced

immediately at any time.

INFO

The orange blocks are installer entered data. Each eld

has a maximum of 15 characters.

IN/OUT SETTINGS TAB

The IN/OUT settings tab is used to assign the amplifer’s

input and output specications.

INPUT SETUP

INPUT NAME

The Input Name is a 15 character user entered eld. Use

this eld to enter a name that describes the type of input

connected.

INPUT TRIM dB

Pull down menu allows for input levels to be adjusted +/-

6dB. This gives you the ability to level out all your inputs

so when you switch from input to input the levels will be

equal. This can eliminate any harsh transitions between

sources with different output voltages. Select the pull-

down menu in each channel to adjust the level trim

between plus or minus 6dB in increments of 0.5dB.

AFTER 15 MINUTES MODE

When an audio signal has not been present on a channel

for 15 minutes, the channel will go to sleep.

AFTER THREE HOURS MODE

When an audio signal has not been present on a channel

for three hours, the channel will go to sleep. This mode

works well for home theater installations.

OUTPUT SETUP

OUTPUT NAME

The Output Name is a 15 character user entered eld. Use

this eld to enter a name that describes the location of

the speakers.

STEREO/MONO

Allows each channel to be set for Stereo or Mono

operation. When Mono is selected, the Left and Right of

the input selected will be combined to create Mono.

DSP PRESET

Apply any of the available Sonance DSP presets to each

channel of the amplier independently. You can apply

any open preset and then make modications on the EQ

settings page.

OUTPUT VOLUME

This is the main volume level control for each channel.

When channels are placed in the same output group the

levels will change simultaneously.

NOTE: FRONT PANEL VOLUME CONTROLS OVERWRITE

THIS SETTING.

TURN ON VOLUME

Determines what volume level the amplier will default

to when it is turned on. Channels placed in the same

OUTPUT SOURCE

SOURCE 1

Primary source you will direct to the speakers. Any of the

inputs available on the amplier can be selected. When

channels are in the same output group, the inputs will all

change in unison. Left inputs default to left outputs and

right inputs to right outputs.

SOURCE 2

Secondary source that based on the mode Source 2

setting described below, will either override or mix

with Source 1. This input could be used for a doorbell or

paging for example.

MODE SOURCE 2 OFF

When set to OFF, Source 2 has no effect on the operation

of the channel.

MIX

Input levels will be attenuated by 6dB, and signals will be

summed.

MUTE

When set to MUTE, Source 1 will be muted while Source

2 is active.

EQ SETTING TAB

The EQ settings tab is used to assign your DSP EQ presets

for each channel. EQ presets provide best possible

audio quality for most Sonance speakers. EQ presets are

available at:

http://www.sonance.com/electronics/ampliers/dsp.

ASSIGN PRESET

OUTPUT NAME

Can be named Output 1L and Output 1R or room names

such as Kitchen L and Kitchen R. These are a duplicate of

the output name on the IN/OUT settings page.

DSP PRESET

Select your DSP preset with the blue pull-down menu.

This will auto populate in the IN/OUT settings page.

OUTPUT GROUP

The DSP 2-750 MKIII has two output group options,

A and B. When using IP or IR to control the amplier,

commands are sent to an output group and not to a

specic channel.

BRIDGE MODE

When more power is required, two channels can be

bridged. Follow the instructions on page 6, in the

software, for connecting the wires then select Bridge ON.

output group will automatically have identical levels.

Turn on volume level is implemented when the amplier

is turned off with the power switch or goes into sleep

mode.

MAXIMUM VOLUME

IP or IR can be used to limit how loud the speakers

will play in certain areas. Output Volume and Turn

On Volume can never exceed the Maximum Volume.

Maximum Volume is the highest volume level that the

amplier will output. The output group selected does not

affect this setting.

GAIN OFFSET

Allows channels in the same output group to have

their levels adjusted independently by +/-6dB. This is an

independent setting not affected by the output group.

MUTE

Eliminates the output from the speakers. Channels

placed in the same output group will change

simultaneously.

TEST SIGNAL

SonARC software includes a built in pink noise generator.

The pink noise signal can be used in conjunction with a

real time analyzer to measure speakers.

TEST SIGNAL SELECT

Pink noise or test signals fed options into line level inputs.

Use the blue pull-down menu to select between pink

noise or line level inputs as a source for the test signal.

DSP PRESET EDITOR

There are six additional EQ slots named User1 through

User6. These are set aside for customization and are at

by default. If these EQs are modied, it is recommended

that a backup be made using the EXPORT function

described below.

SELECT PRESET OR EDIT

Allows you to edit any of the existing presets. Select

preset to edit from the drop-down menu.

EDIT NAME

Edit the name of your preset with up to 15 characters.

DELETE SETTINGS

The reset button deletes the selected preset.

IMPORT EXPORT

ALL PRESETS

The green IMPORT EXPORT buttons allow you to save all

presets in one le. This option can be useful when setting

up multiple ampliers.

SINGLE PRESETS

The green IMPORT EXPORT buttons allow you to import

or export presets individually.

EXPORT SINGLE PRESET:

1. Use the blue pull-down menu SELECT PRESET

to edit located above the IMPORT EXPORT green

buttons.

2. SELECT THE PRESET YOU CHOOSE TO EXPORT

FROM THE PULLDOWN MENU.

Press the green EXPORT button. Depending on your web

browser, the exported le will be saved in your down-

loads folder or you will be prompted where you would

like to save the le.

IMPORT SINGLE PRESET

1. Import speaker preset to a location on your

computer. This can be accomplished by saving a DSP

preset downloaded from Sonance website.

2. Select the location you would like to store the new

preset using the SELECT PRESET TO EDIT pull-

down menu. You can save the new preset in any of

the open preset locations or you can overwrite an

existing preset you do not need.

3. Press the green IMPORT button.

4. From the pop-up menu choose local or internet.

5. You will be directed to My Computer (Windows) or

Finder (MAC).

6. Find and select the new preset you would like to

import (eqs).

7. You will be directed to a screen that says upload

successful.

8. Press “Click Here To Go Back”.

9. The preset will now be saved in the location you

selected.

NOTE: PRESETS DOWNLOADED FROM INTERNET CAN

TAKE UP TO 15 SECONDS TO DOWNLOAD.

COPY PRESET

From/To blue pull-down menus allow you to pull a preset

from one location and assign it to another location. Press

green copy button to activate.

OUTPUT FREQUENCY RESPONSE

This graph reects the changes made below.

The EQ image shows EQ4 ON at 500Hz, the Q is set to

three with a -6dB gain, creating a gradual dip in the

lower midrange.

EQ9 shows ON at 3000Hz, the Q is set to ten with a -6dB

gain, creating a sharp dip in the midrange.

EQ10 shows ON at 10000Hz, the Q is set to one with

a +4dB gain, creating a very gradual slope in the high

frequencies.

VOLUME

Select desired volume for the test signal.

ON/OFF

Toggle the test signal on and off. The pink noise signal

should not be left on for more than ten minutes to

minimize the risk of damaging the speakers.

NOTE: THE PINK NOISE GENERATOR IS AFTER THE

AUDIO SENSORY CIRCUIT SO THE AMP WILL GO TO

SLEEP DEPENDING ON THE AUTO ON MODE SELECTED.

IF THE PINK NOISE STOPS, POWER CYCLE THE AMP.

DELAY

Delay is shown in milliseconds, feet and meters. You can

make an entry in any of the three elds and the other

elds will be calculated automatically. The minimum

delay is .01 milliseconds, the maximum delay is 12

milliseconds. This function is useful when compensating

for distance between satellites and subwoofers for

instance.

TILT CONTROL

The tilt controls are very sophisticated bass and treble

control. By selecting a start frequency and level you can

ramp the bass and or treble up or down. The effect of

the tilt control is visible in the output frequency response

graph.

LOW TILT/HIGH TILT

Turns the low and high tilt controls on and off.

FREQUENCY

Enter the start frequency of the tilt in Hz. To boost the

low frequencies you would typically set the low tilt to

100Hz. To boost the high frequencies you would set the

high tilt to around 5kHz.

Careful adjustment of the EQ gain is necessary to prevent

damage to the speakers. Always increase the level as little

as possible. The rst choice should always be to reduce

the output to achieve the target frequency response.

PARAMETRIC EQ

All Sonance DSP amplier models feature a ten band

parametric EQ. Adjustments made to the EQ will be

displayed on the output frequency response graph. We

strongly suggest not adjusting the EQ without proper

measurement equipment.

EQ ON/OFF

Turns each of the ten parametric EQ lters on and off.

EQ FREQUENCY HZ

Enter the center frequency (20Hz - 20kHz) for the lter to

be adjusted.

EQ-Q

Determines the width of the adjustment range. The lower

the number the wider the bandwidth. The higher the

number the narrower the bandwidth.

EQ-GAIN +/- dB

Level of each parametric adjustment can be set +/-12dB.

LIMITER

The limiter operates as a brick wall limit on the output of

the amplier. The limiter drop-down menu has options

from zero to -6dB in 0.5dB steps. The maximum outputs

for each of the models:

DSP 2-750 MKIII No Limiter -3dB -6dB

8 ohm power 500 watts 250 watts 125 watts

GAIN

Can be set in 1dB steps +/-12dB. When setting the gain

use as little positive gain as possible to minimize the risk

of damage to the loudspeakers.

CROSSOVER

LP XOVER/HP XOVER

Turns the high and low pass crossovers on and off.

FREQUENCY

Enter any frequency between 20Hz-20kHz.

FILTER TYPE

6dB, 12dB, 18dB and 24dB per octave Butterworth lters

are available in the pull-down menu. The higher the

number the faster the speakers output will be reduced

below or above the crossover frequency. In a typical

satellite subwoofer system the crossover frequency would

be around 80-100Hz for both the high and low

pass lters.

DSP 2-750 MKIII SPECIFICATIONS

Number of Channels 2 (1 stereo pair)

Power Output - 8 ohms (Stereo) 500 Watts RMS per channel (all channels driven)

Power Output - 4 ohms/70V (Stereo) 750 Watts RMS per channel (all channels driven)

Power Output - 8 ohms (Bridged) 2000 Watts Peak

Power Output - 70 Volts 750 Watts RMS per Channel (both channels driven)

Frequency Response 5Hz – 50kHz, bandwidth limited

Total Harmonic Distortion 0.4% (1kHz, 500W, 8 ohms) 0.3% (1kHz, 500W, 4 ohms)

Signal to Noise Ratio >100dB (20-20kHz, A-weighted)

Input Gain 29dB

Input Sensitivity 100mV for 1 Watt Output @8 ohms

2200mV for 500 Watts Output @8 ohms

Input Impedance 20k ohms

Loop Output Impedance 600 ohms

Maximum Source Input Voltage 2.9V VAC RMS

Communication Protocol TCP/IP (RJ-45 10/100 Base T)

Power Consumption 120V AC

@8 ohms (sinewave, full power) 1200 Watts (all channels driven)

@4 ohms (sinewave, full power) 1850 Watts (all channels driven)

@8 ohms (sinewave, 1/8 power) 210 Watts (all channels driven)

@4 ohms (sinewave, 1/8 power) 290 Watts (all channels driven)

@Idle 37 Watts

@IP or IR sleep <2 Watts

@Sleep 0.4 Watts

Power Consumption 230V AC

@8 ohms (sinewave, full power) 1200 Watts (all channels driven)

@4 ohms (sinewave, full power) 1950 Watts (all channels driven)

@8 ohms (sinewave, 1/8 power) 200 Watts (all channels driven)

@4 ohms (sinewave, 1/8 power) 290 Watts (all channels driven)

@Idle 35 Watts

@IP or IR sleep <2 Watts

@Sleep 0.4 Watts

Heat Output

@8 ohms (sinewave, full power) 683 BTU/h (all channels driven)

@4 ohms (sinewave, full power) 1195 BTU/h (all channels driven)

@8 ohms (sinewave, 1/8 power) 260 BTU/h (all channels driven)

@4 ohms (sinewave, 1/8 power) 340 BTU/h (all channels driven)

AC Voltage 100-120V@60Hz, 220-240V@50Hz

AC Fuse 15A (T15AL ~ 250V)

Rack Space Requirement 2U

Dimensions w/ Feet (WxHxD) 17 1/4” x 3 7/8” x 16 13/16” (438mm x 98mm x 427mm)

Dimensions w/ Rack Ears w/o Feet (WxHxD) 19” x 3 1/2” x 16 13/16” (482mm x 88mm x 427mm)

Shipping Weight 23.3 lbs (10.6kg)

Dim White Power Button Amplier is plugged in and in sleep mode

Bright White Power Button Amplier is active

Power Button Blinking Amplier is in ID Amp Mode (see page 9)

Green LED Signal is present (>1.0mV) on channel

Blinking Green Signal is going above and below the active level or between songs

Blinking Red The channel is being over driven

Solid Red Amplier is in protection mode (see page 6)

Power Button Blinking Light Amplier temperature exceeds the design maximum +LED’s Blinking Red

Step 1 Press and hold the RESET button for at least three, but less than ten seconds

LED INDICATOR EXPLANATION

DHCP RESET STEP DHCP RESET STEPS

APPENDIX A

AMPLIFIER FACTORY RESET AMPLIFIER FACTORY RESET STEPS

Step 1 Press and hold the RESET button on the rear panel for more than ten seconds