GRbass GR 700+, User Manual

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7. Mid knob
To increase or reduce the mid range frequencies.
8. High knob
To increase or reduce the high frequencies.
9. SUBS Filter button
Subsonic filter switcher for the woofer protection.
The subsonic filter eliminates the frequencies under
22Hz. It does not modify the audio signal and redu-
ces the woofer range.
10. DI-HEAR KNOB
DI and headphones volume. The headphones volu-
me is amplified compared to the DI. Even if you put
on the minimum level, the audio signal is still on in
the headphones although it is very low.
11. Master knob
Master volume of the amplifier.
12. Mute button
Turn off the amplifier output. The activation of this
mode turns on the red LED on the left of the button.
The tuner-out is still on.
13. Hear output
3.5mm plug for headphones.
14. Operation LED
Green = normal operation.
Orange = high level of the input signal (clip).
15. Vu-Meter
A 20 LED bar indicates the audio signal pitch.