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9
AUDIO CONNECTIONS
NOTE: Before making audio connections, ensure the VOLUME control on each 3 Series speaker/subwoofer is
set to the full counter-clockwise (minimum) position.
The 3 Series speakers are equipped with balanced XLR and 6mm (¼") TRS inputs for connection to professional
computer audio interfaces, mixing consoles, and audio production equipment, as well as unbalanced consumer
audio products such as personal music players, consumer audio receivers, and audio visual equipment.
Connect professional equipment with balanced outputs to the XLR or 6mm (¼") TRS input of the speaker using
balanced audio cables.
3 Series speakers are equipped with an INPUT SENSITIVITY switch, which is set to the -10dBV setting at the
factory. This setting will be best for many applications. However, you should set the switch to the +4dBu setting
under the following conditions:
• When connecting 3 Series speakers to professional equipment with +4dBu nominal output level. To
determine the nominal output level of the connected equipment, consult the documentation supplied with
the connected equipment.
• The sound is distorted, even when the speaker VOLUME controls are set to minimum settings
NOTE: When using the LSR310S in a system with 3 Series MkII Studio Monitors, set the INPUT SENSITIVITY
switch on the 305P, 306P, or 308P MkII speakers to the -10dBV setting regardless of the LSR310S INPUT
SENSITIVITY switch setting.
LSR310S POWERED STUDIO SUBWOOFER CONNECTIONS
The left and right outputs of the signal source should be connected directly to the LEFT IN and RIGHT
IN connectors of the subwoofer. The LEFT OUT and RIGHT OUT connectors of the subwoofer should be
connected to the inputs of the left and right speakers respectively.
POWER CONNECTIONS
Connect the included IEC power cable to each 3 Series speaker and subwoofer. The 3 Series speakers
incorporate a universal power supply, allowing them to be used domestically and internationally. The ground
terminal of the IEC plug is required by wiring codes and regulations and must always be connected to the
electrical installation safety ground.
MAKING SOUND
1. Ensure the VOLUME control on each 3 Series speaker/subwoofer is set to the full counter-clockwise
(minimum) position.
2. Power on the connected audio equipment (mixing console, computer audio interface, preamp, etc.).
3. Set the POWER switch on each 3 Series speaker/subwoofer to the ON position. After a short delay, the
POWER LED on the front of each speaker will illuminate and the speakers will be ready to reproduce
audio signals.
4. Play full range program material from the source with ample low frequency content so that you can
properly judge the bass response of the system. Now slowly advance the volume control of the source
device until its nominal operating level is achieved.
5. Slowly increase the VOLUME control on each 3 Series Studio Monitor until the desired listening level is
achieved and all speakers are matched in output level to achieve a balanced image.
6. Balance the subwoofer in the system using the rear panel VOLUME control. Additional balance of bass
can be achieved by changing the placement of the subwoofer in the room.
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