AudioSource AMP210 / AMP310 Rca Input/Output, Master Level Controls, Speaker Level Input

These level controls allow independent volume adjustment for each channel. At the bottom left of the rear panel, there are 2 screwdriver adjustment knobs which set the maximum level of the channel identified by the channel designator below it.

Master Level

Min Max Min Max

R L

Figure 5. Master Level

The volume range is labeled Minimum to Maximum. Rotate the knob clockwise to increase output, and counter-clockwise to decrease output.

These adjustments set the master level and if not configured at initial setup of the AMP210/310 may adversely affect the performance of the amplifier.

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FRONT PANEL CONTROLS

The front panel power switch switches the AMP210/310 on or off. Red LEDs behind the power button lens indicate power status. Whenever the amplifier’s power switch is in the “ON” position and the amplifier is in “Active” status the Signal/Clip LEDs are illuminated green. If the amplifier is “ON” but in “Standby” status the Signal/Clip LEDs will illuminate orange.

REAR PANEL CONTROLS

The AMP210/310 can be turned on and off independently via the power switch on the front panel, by signal sensing, or remotely by a triggered DC input. Switch 14 , located on the lower edge of the rear panel of the

AMP210 / AMP310

OWNER’S MANUAL

Begin Master Level control setup by adjusting the front panel “Volume Trim” to its fully clockwise position. Set the front panel “Balance Trim” to its center detent position. Now adjust both the Left and Right Channel Master Level controls to set a “Maximum” desired volume for the AMP210/310 in its application, as well as setting an appropriate “Balance” from left to right.

Now use the front panel Volume and Balance Trim controls to make fine adjustments to your setup in this application.

6 & 9 RCA INPUT/OUTPUT

Line 1 Line 2

amplifier, selects turn-on functions of the AMP210/310. If you would like to control the unit’s power on / power off status manually from the front, place the switch in the “Normal” position. If you would like to control the unit’s power-on / power-off status by means of signal sensing, place the switch in the “AUTO ON” position. If you would like to control the unit’s power-on / power-off status by a DC remote trigger, place the switch in the “TRIGGER” position, and connect the remote triggering cable from your triggering device to the jack labeled “IN” next to the switch. When using 12V Trigger or Auto On mode, the unit’s power button will be pushed in and the status LEDs will be illuminated orange in standby condition.

VSpeaker IN

Line 1R L

IN +

L

R -

V

Line 2

+ IN OUT

L

- R

12V Trigger	Auto On
+
IN - OUT	Trigger Normal
Figure 3. 12V Trigger	Figure 4. Power Mode

Use a 3.5mm phone plug (in the “IN” connector) to make this connection: the tip of the connector is (+) positive, and the sleeve of the connector is (-) negative. A second jack in the same block is labeled “OUT”. This allows for remote turn-on of other devices when the AMP210/310 is powered on. Use the same polarity for the terminals of this plug. Please read the owner’s manual for any devices you are attempting to connect in this manner to ensure compatibility.

Note: The front panel power switch must be in the “ON” position for the 12V triggers or “Auto ON” features to operate.

11 MASTER LEVEL CONTROLS

Figure 6. RCA Inputs

There are 2 pairs of RCA inputs on the back panel of the AMP210/310. These RCA inputs are labeled as “Line 1 IN” and “Line 2 IN”. They are also designated with an “R” or an “L” as Right channel or Left channel inputs respectively.

“Line 2 IN” should be used as the “primary” or normal input for various line level sources that may be available to the amplifier. “Line 1 IN” is a switching input that should be used when a second local source is connected, and will take over as the selected input whenever a signal with a minimum of 5mV of level is present. Whenever there is no signal at the “Line 1 IN” RCAs, or a signal with less than 5mV level, the input will revert back to the normal Line 2 input signal after preset delay.

An adjustable delay, of from 3 seconds to 15 seconds, can be set to accommodate the nature of the source connected to the “Line 1 IN” RCAs. As an example, if the “Line 1 IN” source was a CD Changer, the delay could be adjusted to prevent switching back to the “Line 2 IN” source while the changer moves from one disc to another.

Delay

Time

3 Sec 15 Sec

Figure 7. Delay Time

8SPEAKER LEVEL INPUT

The AMP210/310 provides a pair of speaker level inputs for those applications where either of the sources has only speaker level output signal available. The switch 7 routes the speaker level signal to either the Line 1 or Line 2 input.

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