5
(A)-REAR Panel Controls, inputs/outputs, (B)-Effects Loop
(A)-REAR panel Controls/input/output jacks
AC power cord input:
Using the supplied 120vac power cord. Connect AC POWER IN on amplifier and to AC power source.
AC power Fuse:
This fuse protects the amplifier if any malfunction occurs. Use ONLY stock fuse rating as supplied by
factory.
Power On/OFF switch:
Up is ON, DOWN is OFF
Standby switch:
UP is ON, DOWN places the amplifier in STANDBY
GROUND polarity switch:
Allows for best grounding by placing switch in one of 3 positions: UP, CENTER, DOWN.
NORMAL/SAG switch:
This switch allows for shaping the power supply of the amplifier for the desired overall level of “sag”. UP is
normal, DOWN (SAG) causes the power supply to sag quicker (like a tube rectifier) and causes the output
stage of the amp to distort quicker, more like a vintage tube rectified amp would.
Speaker inputs (4,8,16-ohm):
(You must have a speaker load inputted to the TDS before powering on).
Connect using a ¼” phone plug to an outboard speaker cabinet. If you have a TDS Combo amplifier, the
internal speaker is attached with a supplied wire 1/4” jack. Multiple speaker outputs are provided on your
TDS (4, 8, 16-ohm). Connect your speaker to the jack that most closely matches your speaker(s)
impedance.
Series/Parallel switch:
When in Series-amplifier must have an effect installed or amp will not produce sound. When in Parallel-
amplifier will always produce sound. Parallel mixes effect signal with drive signal, which then remains in
amplifier.
Return Trim switch:
Sets sensitivity & adjusts sensitivity of return input of the effects loop. It allows tailoring of signal of effect
or rack device. If used in series mode, you then depend on outboard effect to mix wet/dry signal balance.
Dry signal does not remain in amp.
Return adjustment control:
This allows overall volume adjustment of amp (to set unity gain), thus retaining same volume
with/without effect). This control sets the level coming back from your effects, also a secondary means of
adjusting return of effect signal. NOTE: The higher gain position is usually used for pedal level signals, and
the lower level is for rack type effects. The series parallel switch controls whether the loop is “open”
(series) or “closed” (parallel). In series mode the amplifier will produce no sound (except reverb tank
output). This is because an effect must be plugged into both the send and return jacks.
Return ¼” Input jack:
Connects to OUTPUT FROM your EFFECTS
Send ¼” Input jack:
Connects to INPUT TO your EFFECTS.
