(58) Slave Out
This ¼" mono (TS) jack is a passively buffered signal that is in parallel with the speaker output. It contains
the full complement of preamp and power amp characteristics of the amp. Use this output to send the
signal to a power amplifier connected to additional speaker cabinets for a louder version of the amp.
(59) Power Level
This switch sets the maximum power level to either Full or Half (setting it to half literally shuts off two of the
four power output tubes). It also switches off one of the two rectifier tubes to more authentically sound like
a vintage 50 watt guitar amp. Therefore, if the rectifier tubes are being used, both the 'power amplification'
stage and the 'power supply rectification' are being halved. The actual maximum power levels will be
dependant on the actual power tubes used and the PowerPan™ setting (more on this below).
When the unit is in HALF-POWER mode, the IMPEDANCE SELECTOR can be more accurately matched
to the cabinet according to the impedance selector markings under this switch. In HALF-POWER mode,
the nominal load that the amp would be optimized for in full-power mode would double in impedance. If
you are using an 8 Ohm cabinet in full-power mode and you switch to half-power mode, maximum "half-
power" would be obtained through the 8 Ohm cabinet on the full-power 16 Ohm setting.
(60) PowerPan
™
This is a patent pending feature that enables the user to select Tube rectification, Solid State rectification,
or a blend of anywhere in-between. This allows the user to take advantage of the different compression
effects that happen at transients and high volume, which are caused by the variation in power supply sag
with tube or solid state rectification. It goes further than what has been done before by allowing the user
to blend between the two.
Used in combination with the Power Level switch, the PowerPan feature allows many different power amp
tones at different volume levels.
For example: 4x 6L6GC with 2x 5U4 will produce ~100W at full power with solid state rectification and go
down to about 25W at half power with just tube rectification.
Using 4x EL34 will generally produce slightly more power (maximum ~120W with solid state rectification)
and using 5AR4/GZ34 rectifier tubes will reduce the power supply sag effects, therefore also generally
having slightly more power headroom.