4
FRONT PANEL
LEFT TO RIGHT
1. VOLUME – A single volume control provides equal output levels for both channels simultaneously.
2. PRESENCE/FRFR - Push button switch. Engages the Presence control setting.
3. DEPTH/FRFR - Push button switch. Engages the Depth control setting.
4. STANDBY – Individual Standby switches turn on high voltage to the output section of each channel. In standby, the
amplifier output is disabled while power is supplied to the tube filaments only. Use STANDBY instead of switching the
power off during short breaks to extend tube life and avoid the warm-up delay upon returning to play.
5. FUSE A - 1/2 amp fast blow fuse for Channel A
6. FUSE B - 1/2 amp fast blow fuse for Channel B
7. MAINS - Switches main AC power on or off. Illuminates when the unit is ON. You can extend the life of the amplifier
tubes by keeping the STANDBY switches down for the first 60 seconds after power up.
TOP PANEL PRESENCE AND DEPTH CONTROLS
8. PRESENCE CONTROL – Trim pot control can be accessed through hole in top cover. Sets the high-end frequency
response of the power amplifier.
9. DEPTH CONTROL - Trim pot control can be accessed through hole in top cover. Sets the low-end frequency response of
the power amplifier.
The factory default setting of the Presence and Depth trim-pots are 1:00 and 11:00 respectively. The trim-pots are
easily accessible using a small flat blade screwdriver as shown in the diagram above.
CH B Presence
CH B Depth
CH A Depth
CH A Presence
