
PAGE 3
FRont PAneL DesCRIPtIon
1. INPUT: ¼ ” jack for instrument input.
DIRTY/BOOST CHANNEL:
2. DIRTY GAIN: Controls the amount of pre-amp gain in the dirty channel.
3. BOOST GAIN: Controls the amount of pre-amp gain in the boost channel.
4. CONTOUR: Adjusts the tonal quality of the dirty channel.
5. GAIN SELECT: Selects between boost and dirty gain stages.
6. BASS: Controls the amount of low frequencies in the dirty/boost channel.
7. MIDDLE: Controls the amount of middle (mid) frequencies in the dirty/boost channel.
8. TREBLE: Controls the amount of high frequencies in the dirty/boost channel.
9. LEVEL: Adjusts the overall level of the dirty and boost channels.
CLEAN CHANNEL:
10. CHANNEL SELECT: Selects either the dirty / boost channels or clean channel.
11. LEVEL: Adjusts the overall level of the clean channel.
12. BASS: Controls the amount of low frequencies in the clean channel.
13. MIDDLE: Controls the amount of middle (mid) frequencies in the clean channel.
14. TREBLE: Controls the amount of high frequencies in the clean channel.
15. REVERB: Adjusts the amount of reverb present in the boost, dirty and clean channels.
16. MASTER: Controls the overall level of the amplifier.
17: PHONES: Use this jack output for headphone operation.
18. POWER SWITCH: Turns the amp on or off.
QVMM!CSJHIU
DIRTY CHANNEL
CLEAN CHANNEL
MASTER
GA100H
GUITAR HEAD
GA100_MANUAL.indd 3 13/04/10 3:46 PM