Block Diagram; Technical Specifications - Koch Twintone II Operating Instructions Manual

Inputs
Normal
Bright
Clean
Effects Loops
Parallel
Serial
To FX-in From FX-out
Reverb
Can

BLOCK DIAGRAM

TECHNICAL SPECIFICATIONS

INPUT IMPEDANCES
OUTPUT IMPEDANCES
SIGNAL LEVELS
TUBES
OUTPUT POWER
MAINS
Tube
Stage
Bass Mid Treble
Tube Tube
Stage Stage
Drive
From FX-out
+
Reverb/
Fx Mix
Input Normal
Input Bright Clean
From FX-out
To FX-in
Effects Loop
Preamp
Power amp
100-230VAC, 50-60Hz
Tube
Stage
Volume
OD
OD+
Tube
Stages
Drive
Bass Mid
Solo
Rhythm
Rhythm
Volume
1M ohms
1M ohms / -6dB
>20K ohms
1K ohms
-10 dBV
1x 12AX7LM (low microphonics)
2x 12AX7 (standard microphonics)
1x 12AX7
2x EL34
50W(rms) in 4 or 8 ohms
125 Watts
Clean
Overdrive
Treble Presence Volume
4 Ohms
8 Ohms
Power
Amp
8 Ohms
50W
Filter
Filter
Extension
Main
Recording
Headphones