K&M Analog Designs Two-Rock Topaz Owner's Manual - Rear Panel Functions
REAR PANEL FUNCTIONS
1. A/C INPUT- Connects the amplifier to A/C power via the power cord
supplied. Unless otherwise specified, your amplifier is designed to operate
on 120 volts A/C, 60 cycles.
2. FUSE- 3 AG Type, slow blow fuse. Refer to the legend below the fuse holder
for the proper fuse rating for your amplifier. (50 watt-2.5 amp /100 watt-
3.5 amp)
3. GROUND SWITCH- Normally left in the center (Off) position. If you
encounter excessive A/C hum or ground loop noise, try the switch in the
other 2 positions.
4. SPEAKER OUTPUT JACKS- There are 3 speaker output jacks- 4 and 8 ohm.
NEVER OPERATE YOUR AMPLIFIER WITHOUT A PROPER SPEAKER LOAD
CONNECTED. Be sure to match the impedance of your cabinet with the
impedance (output) of the amplifier.
5. EFFECTS SEND- Use this jack to send the amplifiers signal to
outboard effects.
6. SERIES/PARALLEL SWITCH- The effects loop can be switched between
series and parallel modes. With the switch in the down position, theloop is in
parallel mode. The effects level control becomes a blend control for mixing in
the desired amount of outboard effects. Since the onboard spring reverb is
part of the parallel loop, this control will also recommended basic setting for
this control is between the 8 and 10 o'clock positions.
With the toggle in the up position, the loop is in series mode. The effects
level control becomes the effects level return control. Because all of the
amp's signal passes through the loop, the level control becomes a master
volume. At the fully counter-clockwise position, np signal is fed to the
output section.
The series mode is useful for delayed echo, slapback, or other effect when
no dry signal is desired.
It is recommended that other outboard effects such as chorus, digital reverb,
etc. be run in the fully "wet" position and blended in to the desired level
( via the effects level control) in parallel mode. This will have the least
amount of effect on the dry signal and overall tone quality.
Page 4
A/C 120 VOLTS
60 CYCLES
GROUND
FUSE
2.5 AMP
SLO-BLO
SPEAKER OUTPUTS
4 OHM
8 OHM
MODE
SERIES
PARALLEL
SEND RETURN
LEVEL
EFFECTS LOOP
200 WATTS
K&M Analog Designs
Two-Rock, CA
CAUTION:
To reduce the risk of electrical shock, do not remove chassis. No
user serviceable parts inside. Refer service to qualified personnel.
Manufactured by:
MADE IN U.S.A.
S/N
FOOTSWITCH
HERMONICS
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