CHANNEL/AMP Mode Select

TUBE 50/100 - MANUAL

CHANNEL SELECT: This channel selector switches between CHANNEL 1 and CHANNEL 2. In combination with the different AMP MODES, you have four diffe- rent basic sounds available at the touch of a button. This switching function can also be performed via the Stageboard (Button 2) - provided the button located on the front panel is in the "OFF" position (CHANNEL).

CHANNEL 2 MASTER: Determines the volu- me for both AMP MODES in CHANNEL 2.

CHANNEL/AMP MODE SELECT
LEDs: Two illuminated LEDs
indicate AMP MODE B is
active, a single iluminated LED
indicates AMP MODE A is	0
active. The yellow LEDs indica-
te CHANNEL 1 is active, the red
LEDs indicate CHANNEL 2 is
active.	-5 +5

	5		0		0		0		5
0	10	-5	+5	-5	+5	-5	+5	0	10

-5

CHANNEL 2 GAIN: Effectively determines the degree of distortion for both AMP MODES in CHANNEL 2.

EQ SECTION: Common BASS, MID and TREBLE tone controls for CHAN- NEL 2. Here too, MID and TREBLE influence each other for the widest pos- sible range of subtle tonal variations.

MIDI LEARN: Installation of the MSM-1 MIDI Module is a prerequisite for MIDI capability. After installation, the STAGEBOARD switching func- tions can be executed via MIDI Program Change messages. Pressing the MIDI LEARN button will save the current switch settings.

REVERB BUTTON: Press this button to activate the REVERB section. The REVERB circuit remains active for as long as this button on the front panel is in the "ON" posi- tion. If you wish to use the Stageboard to switch Reverb on and off (with switch „3“), you must leave the front panel Reverb button set to "OFF".

FX LOOP BUTTON: With this front panel button pressed in, the FX LOOP will always be active. If not depressed, its fun- ction is taken over by switch „3“ on the stageboard.

STANDBY: The standby switch is self-explanatory, it mutes the amp during breaks. The power amp tubes are protected in standby mode. When you turn the amp back to full power, the tubes are already warm.

	5		5		5		0		0		0		5		0
0	10	0	10	0	10	-5	+5	-5	+5	-5	+5	0	10	-5	+

FX- MIX: Varies from all ‚dry‘ (preamp signal only) to all ‚wet‘ (the FX signal fed from an external effects device to the FX RETURN JACK), and any combination in between - assuming the FX Loop has been activated.

MAINS: Power ON/OFF switch.

REVERB: This pot controls the amount of integrated reverb added to the signal when the REVERB BUTTON is in the "ON" position.

PRESENCE: This pot determines the overtone content in the signal and the aggressiveness of the tone. Note that when you turn the POWER pot down, the overtone spectrum is more pro- nounced. Consequently, these pots work interactively - so you have more control over the sound spectrum at all volume levels.

POWER AMP: Determines the output power, and thereby the volu- me, of the TUBE 50 / TUBE 100. In contrast to conventional master controls, the enhanced overtones and compressive effect of the TUBE 50 / TUBE 100 power amp section are audible even at low POWER AMP settings. At the maximum setting, the TUBE 50 / TUBE 100 operates like any amp without a master control - i.e. the amount of power amp distortion is determined by the preamp's out- put signal level.