ISP Technologies THETA 212 Combo - Manual (Page 4)

FRONT PANEL
Understanding the THETA COMBO amplifier
COMBO PREAMP1
1. PREAMP1 ON LED
This led indicates when PREAMP1 is active and in the signal path. NOTE: The PREAMP1
switch on the FOOTCONTROLLER switches PREAMP1 on and off. PREAMP1 is
functional only when the CLEAN channel is selected. PREAMP1 and PREAMP2 will
automatically switch with the channel selected.
2. PREAMP1 GAIN CONTROL
This control adjusts the amount of gain in the signal path of PREAMP1.
3. BASS
This control adjusts the amount of boost or cut in the low frequency portion of the
spectrum of PREAMP1. The available BASS boost and cut range is +/-15 decibels.