User manual, A2.1 amp – James Loudspeaker A2.1 Amp User Manual

Page 2

1 -

Power LED - Indicates the power state, no color - off, red - standby mode, blue - on.

2 -

Master Volume - Controls the overall volume of the sats and subs together.

3 -

Sub Volume - Used to set the relative level of the subwoofer volume to the sat volumes.
At MAX there is about +12dB more gain available over the sat levels, but this will vary
based on the efficiency of the sats and subs used.

4 -

Sub Crossover - set the crossover point for the subwoofer between 40Hz and 150Hz. 80Hz
is marked as a reference.

5 -

Sat Crossover - sets the crossover point for the sats. Turned all the way to the left, there is
a switch position which defeats the crossover and runs the sats full range. Once the con-
trol is rotated towards the 40Hz position, the crossover will be switched in and provides a
range of 40Hz to 150Hz. 80Hz is marked as a reference.

6 -

45Hz Boost switch - allows the addition of +4dB of bass boost for the subwoofer.

7 -

Phase switch - switches the polarity of the subwoofer to allow better matching to the
sats in certain situations - the setting depends on the specific installation and James
recommends you start in the 0 degree setting.

8 -

Rack ears - for rack mounting the amplifier - these can be removed if needed for shelf
mounting.

9 -

Right sat speaker connection. Connect the red terminal to the positive on the right sat
speaker.

10 -

Left sat speaker connection. Connect the red terminal to the positive on the left sat
speaker.

11 -

Sub woofer speaker connection. Connect the red terminal to the positive on the subwoof-
er.

12 -

3 position Power switch - “OFF “turns the amplifier completely off, “AUTO” position for
signal sense on/off, and “ON” leaves the amp permanently on.

13 -

Left/Right RCA inputs. A 1/8 miniphone to RCA cable is included for cellphone and tablet
sources.

14 -

120V/240V selector - make sure this is correctly set for your AC line voltage.

15 -

IEC Power connection.

16 -

Fuse holder/ spare fuse holder.

17 -

Optional self-adhesive feet on bottom. These can be left off for rack mounting or
attached for shelf use.

535 Airpark Road

Napa, California, 94558 USA

www.JamesLoudspeaker.com

1-707-265-6343

6 7

USER MANUAL

A2.1 AMp

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