AMP210 / AMP310
OWNER’S MANUAL
9200 North Decatur St. Portland, OR 97203 • 503.286.9300 • www.audiosource.net
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MODE SWITCH
To the right of the Master Level controls is a switch labeled “Mode” with
“Stereo” and “Bridged” as options. If you will be connecting one or two pair
of speakers to the amplifier, place the switch in the “Stereo” position.
NOTE: If you are using the AMP210/310 in stereo mode, with 2 sets of
speakers (A and B), make sure each speaker has an impedance of 8 ohms
or greater.
When used in “Bridged” mode, the amplifier is a single channel Mono
amplifier.
If you will be using a pair of channels to power a single mono speaker, place
the switch in the “Bridged” position, and be sure to read the section titled
“Speaker Terminals” below.
While the amplifier operates in bridged mode you are required to have
the Left input connected to the amplifier only. The amplifier will use
this signal to create your Mono source.
NOTE: The AMP210 supplies 250W in bridged mode, while the AMP310
supplies 450W in bridged mode. Please verify that your speakers are capable
of handling such power to avoid possible damage!
SPEAKER TERMINALS
Terminals are provided for “A” and “B” pairs of speakers for each channel. If
you will be using the amplifier as a stereo amplifier (i.e. not a bridged amplifier),
connect the speaker’s positive (red) terminal to the amplifier’s positive (red)
terminal, and the speaker’s negative (black) terminal to the amplifier’s negative
(black) terminal (immediately beside the positive terminal).
NOTE: Use the appropriate gauge speaker wire when connecting speakers
to the AMP210/310.
If using one pair of channels bridged, place the “Mode” switch in the “Bridged”
position and use both RED terminals to connect to the speaker.
When in “Bridged” mode make sure to connect the speaker’s negative
(black) terminal to the amplifier’s positive (red) terminal of the left channel and
the speaker’s positive (red) terminal to the amplifier’s positive (red) terminal of
the right channel.
NOTE: Only one pair of channels can be bridged together. Do not attempt to
bridge both A & B speaker terminals, as this may result in a lower impedance
than the amplifier is designed to accommodate and may damage your
amplifier. The minimum impedance for the total load connected to a pair of
channels in the bridged mode is 8 ohms.
MAINS POWER INLET/FUSE/
VOLTAGE SELECTOR
Power inlet accepts the IEC type line cord supplied with the amplifier. A fuse
in the integrated holder provides safety protection from fault conditions:
replace fuse with one of same type and rating only.
This amplifier is configured for operation at 115V. (North America)
The AMP210/310 can be configured for operation from either 115V ~60Hz
or 230V ~50Hz AC mains. Installed mains fuse must be of type and rating
marked on amplifier corresponding to configured AC mains voltage.
Should you wish to configure the AMP210/310 for use at 230V ~50Hz
please contact your dealer or distributor.
Figure 8. Mode Select Switch
Figure 10. Speaker Terminals
12
15
16
&
17
18
&
Mode
Stereo Bridged
Speaker A
R
L
R
L
-
-
-
+
+
+
-
-
+
+
Bridge
Speaker B
LIGHT BAR DISPLAY
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On Off
Light Bar Display
This switch controls the lighted bars on the front of the amplifier. These bars
light red when the amplifier is in operation. If the amplifier is visible, and a low
light setting is desired, use this switch to turn off the light bars. The other LED
indicators on the front panel as well as the power button lighted ring are not
affected by this control.
Figure 9. Light Bar Display Control
