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Functions description

Front panel:

1. XLR INPUTS LEVEL CONTROL

These rotary knobs are for adjusting volume level of the XLR inputs. First four inputs can be used as

balanced line level as well as microphone level inputs. The phantom power can be activated for these

inputs separately in rear panel. The input gain selector is located in the rear panel too.

2. AUX INPUTS LEVEL CONTROL

These rotary knobs are for adjusting volume level of the AUX input.

3. TONE CONTROL

The separate tone controls provide attenuation of bass and treble response. The flat position is obtained

when the knobs are set to middle position. Turn bass control knob (BASS) and treble tone control knob

(TREBLE), respectively, clockwise to raise tone level by approximately +10 dB; turn counterclockwise to

lower tone level by approximately -10 dB.

4. MASTER VOLUME

This potentiometer is designed to adjust audio level in the main output.

5. OUTPUT LEVEL INDICATION

This is level indicator of the master output. If the red LED indicator starts lighting continuously the output

is distorted. In this case, decrease the sound volume by master volume control.

6. POWER INDICATOR

This LED indicates status of the power. The LED lights up if the amplifier is powered.

7. POWER SWITCH

Use this switch to power on or off the amplifier. The LED in the front panel lights up if the amplifier is

powered.

Rear panel:

1. POWER CONNECTOR AND AC FUSE

Power connector is designed for main powers connecting to amplifier. This connector is combined with

fuse holder and 2.5A 250V fuse for MA 120 and 1.6A 250V fuse for MA 60 amplifiers.

2. OUTPUT AND +24V DC TERMINAL

24V DC terminal is designed to power up the amplifier when the main power is unavailable. Use only

DC 24V power supply or batteries and take attention to polarity during the wiring. Output terminal is

designed to connect audio line to amplifier. There are available 4 types of output: low impedance 4 Ω

output, 25 V, 70 V and 100 V outputs for audio line. Please find some connection examples below in this

user manual.

3. REC OUTPUT

This is line level stereo RCA output to connect audio recording equipment.

4. AUX INPUT

Stereo RCA input with selectable sensitivity. There is a possibility to connect the line level audio, input gain

can be adjusted by using AUX input gain selector.