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Guitar Amplifier
SPECIFICATIONS
POWER AMPLIFIER SECTION
Four 6BQ5/EL84’s with 12AX7 driver
Rated Power & Load:
50 W RMS into 16 or 8 ohms
Power @ Clipping (Typically):
(5% THD, 1 kHz, 120 V AC line)
50 W RMS into 16 or 8 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:
No greater than 80 dB below rated power
Power Consumption:
200 watts, 50/60 Hz, 120 VAC (Domestic)
PREAMP SECTION
Two 12AX7’s
The following specs are measured @ 1 kHz with the controls
preset as follows:
Pre & Post (lead) @ 0
Reverb Level @ 0
Bass & Treble EQ @ 12
Middle 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
PREAMP SECTION, continued
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 and Normal Channels)
Custom bass, middle, and 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)