Quick Start Guide
UD34479B
Analog Amplifier
Indicators:
Power indicator (solid white): the device is normally working.
USB flash drive indicator (solid white): the device is in USB flash drive mode.
Bluetooth indicator (solid blue): the device is in Bluetooth mode. The default Bluetooth name is "HIK-
Audio xxx".
Buttons:
Mode switch: switch to the USB flash drive mode or Bluetooth mode. You can view which mode the device
is in by idicators.
Single cycle: single cycle playback of USB flash drive audio.
Knobs:
MIC volume knob: adjust the output volume of MIC.
Partition 1 volume knob: adjust the volume output of CH1 on the rear panel.
Partition 2 volume knob: adjust the volume output of CH2 on the rear panel.
Interfaces:
MIC input: connect to the 6.35 mm moving-coil microphone.
USB flash drive input: connect to the USB flash drive in USB2.0 format.
RCA ouput: for amplifier cascading.
RCA input: connect to the audio device with RAC interface.
Power interface: 24 VDC.
Constant resistance output: a channel can be connected to a speaker which power resistor is 4 Ω, 30 W or
two speakers which power resistor is 8 Ω, 15 W.
Constant voltage output: a channel can be connected to speakers with a voltage of 100 V.
Power Switch
MIC Input
USB Flash
Drive Input
Power
Indicator
USB Flash
Drive Indicator
Bluetooth
Indicator
Play/Pause
Forward
Backward
Single Cycle
Mode Switch
Partition 1
Volume Knob
Partition 2
Volume Knob
MIC Volume Knob
MIC
MIC
ON
OFF
VOL-1 VOL-2
Front Panel
RC A IN
CH 2
4Ω- 8Ω
CH 1
4Ω- 8Ω
CH 1
100 V
CH 2
100 V
DC 24 V
Power Interface
Constant Resistance
Output
Constant Voltage
Output
RCA Input
RC A OUT
RCA Output
46 mm(1.81")
51.2 mm(2.01")
MIC
MIC
ON
OFF
VOL-1 VOL-2
190.8 mm(7.48"）
230.8 mm(9.06"）
©2023 Hangzhou Hikvision Digital Technology Co., Ltd. All rights reserved.
About this Manual
The Manual includes instructions for using and managing the Product. Pictures,
charts, images and all other information hereinafter are for description and
explanation only. The information contained in the Manual is subject to change,
without notice, due to firmware updates or other reasons. Please find the latest
version of this Manual at the Hikvision website (https://www.hikvision.com/).
Please use this Manual with the guidance and assistance of professionals trained
in supporting the Product.
Trademarks
and other Hikvision’s trademarks and logos are the properties of
Hikvision invarious jurisdictions.
Other trademarks and logos mentioned are the properties of their respective
owners.
Disclaimer
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THIS MANUAL AND
THE PRODUCT DESCRIBED, WITH ITS HARDWARE, SOFTWARE AND FIRMWARE,
ARE PROVIDED “AS IS” AND “WITH ALL FAULTS AND ERRORS”. HIKVISION MAKES
NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION,
MERCHANTABILITY, SATISFACTORY QUALITY, OR FITNESS FOR A PARTICULAR
PURPOSE. THE USE OF THE PRODUCT BY YOU IS AT YOUR OWN RISK. IN NO EVENT
WILL HIKVISION BE LIABLE TO YOU FOR ANY SPECIAL, CONSEQUENTIAL,
INCIDENTAL, OR INDIRECT DAMAGES, INCLUDING, AMONG OTHERS, DAMAGES
FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, OR LOSS OF DATA,
CORRUPTION OF SYSTEMS, OR LOSS OF DOCUMENTATION, WHETHER BASED ON
BREACH OF CONTRACT, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY,
OR OTHERWISE, IN CONNECTION WITH THE USE OF THE PRODUCT, EVEN IF
HIKVISION HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR LOSS.
YOU ACKNOWLEDGE THAT THE NATURE OF THE INTERNET PROVIDES FOR
INHERENT SECURITY RISKS, AND HIKVISION SHALL NOT TAKE ANY
RESPONSIBILITIES FOR ABNORMAL OPERATION, PRIVACY LEAKAGE OR OTHER
DAMAGES RESULTING FROM CYBER-ATTACK, HACKER ATTACK, VIRUS INFECTION,
OR OTHER INTERNET SECURITY RISKS; HOWEVER, HIKVISION WILL PROVIDE
TIMELY TECHNICAL SUPPORT IF REQUIRED.
YOU AGREE TO USE THIS PRODUCT IN COMPLIANCE WITH ALL APPLICABLE LAWS,
AND YOU ARE SOLELY RESPONSIBLE FOR ENSURING THAT YOUR USE CONFORMS
TO THE APPLICABLE LAW. ESPECIALLY, YOU ARE RESPONSIBLE, FOR USING THIS
PRODUCT IN A MANNER THAT DOES NOT INFRINGE ON THE RIGHTS OF THIRD
PARTIES, INCLUDING WITHOUT LIMITATION, RIGHTS OF PUBLICITY, INTELLECTUAL
PROPERTY RIGHTS, OR DATA PROTECTION AND OTHER PRIVACY RIGHTS. YOU
SHALL NOT USE THIS PRODUCT FOR ANY PROHIBITED END-USES, INCLUDING THE
DEVELOPMENT OR PRODUCTION OF WEAPONS OF MASS DESTRUCTION, THE
DEVELOPMENT OR PRODUCTION OF CHEMICAL OR BIOLOGICAL WEAPONS, ANY
ACTIVITIES IN THE CONTEXT RELATED TO ANY NUCLEAR EXPLOSIVE OR UNSAFE
NUCLEAR FUEL-CYCLE, OR IN SUPPORT OF HUMAN RIGHTS ABUSES. IN THE EVENT
OF ANY CONFLICTS BETWEEN THIS MANUAL AND THE APPLICABLE LAW, THE
LATTER PREVAILS.
Appearance
1
Appearance
Rear Panel
Dimensions
The total power of constant resistance output CH1 and constant voltage output CH1 cannot exceed 60 W.
The total power of constant resistance output CH2 and constant voltage output CH2 cannot exceed 60 W.
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