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SPECIFICATIONS
POWER AMPLIFIER
SECTION
8 - 6BQS/EL84's with 12AX7
driver
Rated Power & Load:
100 W RMS into 16, 8, or 4 ohms
Power @ Clipping: (Typically)
(5% THD, I kHz, 120
VAC
line) 100 W RMS into 16, 8, or
4 ohms (Bias must be reduced
to measure)
Frequency Response:
+0, -2 dB, 50 Hz to 15 kHz,
@ 40 W RMS into 16 ohms
Hum & Noise:
Greater than 80 dB below rated
power
Power Consumption:
400 watts, 50/60 Hz, 120 V AC
(Domestic)
PREAMP SECTION
2-12AX7's
BLOCK DIAGRAM
The following specs are mea-
sured @ 1 kHz with the con-
trols preset as follows:
Pre & Post (lead) @ 0
Reverb Level E 0
Bass & Treble EQ @ 12
Middie EQ @ 0
Master Volume @ 12
Presence @ 6
Nominal level is with Input
gain @ 6
Minimum level is with Input
gain @ 12
‚Preamp Normal Input:
Impedance: Very high Z,
470 K ohms
Lead Channel:
(Post Gain @ 10)
Nominal Input Level: -40 dBV,
10 mV RMS
Minimum Input Level: -70 dBV,
0.3 mV RMS
Normal Channel:
Nominal Input Level: -17 dBV,
140 mV RMS
Minimum Input Level -28 dBV,
40 mV RMS
Maximum Input Level: 0 dBV,
1.0 V RMS
Preamp Bright Input:
Impedance: Very high Z,
470 K ohms, +12 dB boost
@ 2 kHz
Equalization:
(Lead & Normal Channels)
Custom bass, middle & treble
passive type EQ
Effects Send:
Load Impedance: 1 K ohm
or greater
Nominal Output Level: -6 dBV,
0.5 V RMS
Effects Return:
Impedance: High Z, 2 M ohms
Designed Input Level: -6 dBV,
0.5 V RMS (Switching jack
provides Effects Send to Effects
Return connection when not
used)
External Footswitch Function:
Reverb Defeat (when reverb
control is raised)
Normal/Lead channel select
(when Lead activated)
IMPEDANCE
SWITCH
This block diagram shows signal flow within the unit.
In order to thoroughly understand the unit's
functions, please study the diagram carefully.
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