INPUT/OUTPUT PROTECTION -
The input circuits are isolated by resistors. An ultrasonic network uncouples RF from the output and helps to keep the
amplifier stable with reactive loads.
OPERATING VOLTAGE (AC MAINS) -
On the rear panel will indicate the correct AC mains voltage. Connecting to the wrong voltage is dangerous and
may damage the amplifier. Always be sure the source voltage for your areas matches the required voltage for your amplifier.
GAIN CONTROLS -
The gain controls are located on the front panel and are calibrated in 2dB of attenuation from full gain. It is best to a d j ust the
amplifier so no “hissing” is heard from speakers with no music being played, this will ensure the lowest possible distortion d u ring normal operation.
AMPLIFIER FEATURES:
THRU -
THRU will allow the user to daisy-chain one amplifier’s signal input into another amplifier. Plug the signal source outputs into the first amplifier’s input,
patch from the amplifier’s THRU jacks to the next amplifier’s input, and so on, daisy-chaining as many amplifiers as there is no excessive level loss.
GROUND LIFT SWITCH -
Applying or lifting the ground switch will change level for background noise and hum, if the noise level remains the same in either
position, better to keep the ground lift switch in the ground position. This will eliminate 50Hz/60Hz cycle hum that is sometimes induced when mounting several
units in the same rack.
LED INDICATORS -
Each channel has seven LEDs. Four LEDs indicate single level activity; three green LEDs and one yellow LED. One red LED indicates
signal clipping. One red LED indicates protection modes for shorts/overload and one blue LED indicates the mains power is activated.
FILTER 160Hz SELECTOR (LOW-PASS, BY-PASS, HIGH-PASS) -
This three position switch is used for Subwoofer/Full range/Mid-High range
crossover selection.
LOW CUT 30Hz -
This function removes extremely low frequencies from the audio signal that could cause speaker distortion or damage. The slide switch on
the rear panel allows you to cut (roll-off) the sound output at the frequency below 30Hz.
LOW FREQUENCY ENHANCED (V-9000 only) -
This switch controls to bass boost the sound output at the frequency 100Hz.
INPUT SENSITIVITY
-
The input sensitivity controls will change the volume or output of an amplifier. In the rear panel of the V series, you can find the switch
to select the desired input sensitivity: 0.775V, 1V or 1.4V. It is set at the factory to 0.775V for rated output into 8 ohms. Before you change the input sensitivity,
please turn off the amplifier and disconnect its power cord from the AC mains power receptacle to avoid danger.
page 12
Introduction Front Panel Rear Panel Set Up Speakon Assembly Operating Modes
Specifications
Protection
Features
UNiKA
V-8000/V-9000
