Rotel Audio Controls, Protection Circuit, RA-1062 Stereo Integrated Amplifier, VOLUME Control

RA-1062Stereo Integrated Amplifier

12V TRIGGER Connection

Several Rotel amplifiers can be turned on and off using a 12 volt signal, provided by the 12V TRIGGER connection. When the RA-1062 is activated, a 12 volt DC signal appears at this connector and will turn on an amplifier. When the RA-1062 is turned off, the trigger signal is interrupted and the external amplifier will be turned off.

Audio Controls

The following controls are used to operate the RA-1062.

VOLUME Control

Turn the front panel VOLUME control clockwise to increase the volume, or counterclockwise to decrease the volume. Alternatively, press the VOL buttons on the remote control to adjust the volume up or down

BALANCE Control

The Balance Control adjusts the left-to-right balance of the sound output. Normally the control should be left in the center position. In some situations, typically when the main listening position is not ideally centered be- tween the speakers, it may be necessary to adjust the control to achieve proper left-to-right balance. Turning the control counter-clockwise shifts the sound balance to the left. Turning the control clockwise shifts the sound balance to the right.

CONTOUR Selector

Instead of conventional tone controls, the RA- 1062 has a front-panel CONTOUR control which selects one of five available settings. Each setting provides a fixed frequency contour as follows:

OFF: the tone contour circuits are bypassed to ensure the purest possible sound.

L-1:moderate increase in bass frequencies (typically +3dB at 100Hz).

L-2:more increase in bass frequencies (typi- cally +4dB at 100Hz).

H:moderate increase in high frequencies (+3dB at 10kHz).

LH: combination of L-2 bass and H high frequency increases.

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LISTENING Selector

The setting of the LISTENING selector controls which of the input signals goes to the main outputs and onto the power amplifier – or, more simply, which source is heard. Turn the front panel control to the source you want to hear, or press the corresponding button on the RR-AT94 remote.

RECORDING Selector

The RA-1062 can record from any input source (except TAPE 2) to a recorder connected to TAPE 1 or TAPE 2 outputs. To select an input source for recording, turn the RECORDING control on the front-panel to the desired source.

This selection is independent of the source selected for listening. While recording, you may still select a different source using the LISTENING selector.

If you have a three-head recorder or a DAT recorder that allows simultaneous read and write operation, you can monitor your recording by setting the LISTENING switch to the TAPE 1 or TAPE 2 position.

NOTE: If you select TAPE 1 with the RE- CORDING control, the recording signal will only be available at the TAPE 2 recording outputs, not the TAPE 1 outputs. To dub a tape, select TAPE 1 and record to the tape deck connected to the TAPE 2 outputs.

MUTE Button

To temporarily mute the sound of the system press the MUTE button on the RR-AT94 remote. Press the button again to return the sound vol- ume to the original level. The LED in the volume control will flash when the unit is muted.

PHONES Output

The PHONES output allows you to connect headphones for private listening. This output accepts standard stereo phone (1/4”) plugs. If your headphones have another type of plug, such as a 1/8” mini-plug, you will need an adapter plug. Contact your authorized Rotel dealer, to get the correct adapter plug.

NOTE: Plugging in headphones does not cut off the signal to the speakers. If desired, use the SPEAKERS selector to turn off the signal to the speakers for private listening.

SPEAKERS Selector

A four-position rotary switch on the front panel determines which set of speakers, if any, is ac- tive. Set the SPEAKER selector as follows:

OFF: No speakers will be heard. Use this position when listening to headphones.

A:The speakers connected to the SPEAKER A terminals will be heard.

B:The speakers connected to the SPEAKER B terminals will be heard.

A+B: The speakers connected to both the SPEAKER A and SPEAKER B terminals will be heard.

Protection Circuit

A thermal protection circuit protects the ampli- fier against potential damage in the event of extreme or faulty operating conditions. Unlike many designs, the RA-1062’s protection circuit is independent of the audio signal and has no impact on sonic performance. Instead, the protection circuit monitors the temperature of the output devices and shuts down the amplifier if temperatures exceed safe limits.

Should a faulty condition arise, the amplifier will stop playing. If this happens, turn the amplifier off, let it cool down for several minutes, and attempt to identify and correct the problem. When you turn the amplifier back on, the protection circuit will automatically reset.