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SPECS & OPTIONS


CONFIGURATION OPTIONS

 

Untitled Document
PREAMPLIFIER
FUNCTION
STANDARD
CUSTOM OPTIONS

Input

1st stage gain,
2nd stage gain,
3rd gain stage

Sensitivity switch
TotalGain Control Range

26/32 db switched
10-20 db variable
N/A

0/–6db
30-52db

Extra 6db gain
Extra 6db gain
Additional gain stage between 1st & 2nd

0/-10db
6 to 12 db extra gain range

High-Pass filter
N/A
 

Slope (db/octave)

f-3db (Hz)

N/A

12

switched 140/70 Hz

Equalizer

Bass response
Peak fc (Hz)
Boost/cut range (db)

Peak_Dip/Shelf, switched
150 fixed
+/-10
Choose a frequency
120,150,180 or 210 Hz

Middle response
Peak/dip fc (Hz)
Boost/cut range (db)

Peak-dip
350/700/1100 switched
+/-12

Choice of Mid center frequencies depending on chosen Bass & Treble frequencies and customer preferences

Treble response
Peak fc (kHz)
Boost/cut range (db)

Peak-Dip/Shelf, switched
2.5 fixed
+/-12

Choose a frequency
2, 2.5 or 3

High-cut filter, active

Slope (db/octave)
f-3db (Hz) switched

-6
600/off/1200

N/A
300/off/900 or 3
00/off/1100 or
400/off/1200 or
400/off/1500

Preamp & EQ Tubes

4 x 12AX7/ECC83S

JJ-Electronic

 

Different brands of tubes installed on request

 

Reverb

Pick-Off point

Tank

Electromagnetic mu-metal shielding of Reverb Tank

Pre Equalizer

3 spring long tank

Yes

Pre/Post Eq switched 

2 or 3 spring, long/short tank

Yes

Tubes
1/2  ECC83S + ECC82

ECL82
(see Tremolo option)

Tremolo

FET & Tube
N/A
Tremolo option requires Reverb ECL82 option to be installed. Alternatively, Reverb can be omitted and only Tremolo installed
Tube 1/2 12AX7/ECC83S N/A

Effects loop

 

Serial,Send/Return: pre-Master, unbuffered

Serial, Send/Return: pre-Master, unbuffered
AND/OR
Parallel,
Send: switched pre/post Equalizer with level control Return: pre-Master, unbuffered

Line Output
 
Effects Send doubles as line output when loop is not used
Transformer balanced 0.775Vrms@600 ohm.
This option available if only one effects loop is installed, NOT with two loops.

 

POWER AMPLIFIER
FUNCTION STANDARD CUSTOM OPTIONS
Power stage
Architecture

Push-Pull class AB1
Fixed Bias
Fully decoupled screengrids
No Global NFB

P-P or SE class A1
Cathode Bias
N/A
N/A

Output power 35W at onset of clipping

P-P class AB1: 25,35, 50, 70W
P-P class A1: 25 W
SE class A1: 15 W

Input Sensitivity 0.775 Vrms N/A
Tubes 2 x 6L6GC 2xEL84+2x6V6 combination
5891, 5881, EL34, KT66
6550A, KT88
EL156A - class A1 SE only
Loudspeaker Impedance 4, 8, 16 switch selectable Integral Loudspeaker impedance selector & configuration switch for 2x12" cab. Allows choosing either of the speakers or both parallel in-phase or anti-phase.
Phase Inverter
Architecture Long-tail configuration, inherently balanced, SSCCS driven (Solid State Constant Current Sink) N/A
Tube 12AX7/ECC83S N/A
Rectifier
Tube 5A4R/GZ34 up to 50W
Solid State rectifier above 50W output power and SE
Solid State/Tube rectifier switch