Just arrived - This beauty of an amp . Quite rare . Seymour Duncan 84/40 amplifier . It is in generally good condition with a couple of marks here and there . It includes the original back plate and also a footswitch to change channels .
Specifications: manufactured in the US from 1989 to 1991
Power
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Output Power: 40 Watts RMS
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Channels: Two channels, clean and overdrive (switchable via front panel or footswitch) [1, 2]
Tube Complement
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Power Tubes: 4 x EL84 configured as a quartet
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Preamp Tubes: 3 x 12AX7 [1]
Speaker Configuration
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Speakers: 2 x 10" drivers (typically Eminence or Celestion depending on exact production runs) labels on original speakers are gold and say King Tone and Seymour Duncan.
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Total Internal Impedance: 4 Ohms (two 10inch, 8-ohm speakers wired in parallel) [1, 2]
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Speaker Outputs: Dedicated 4-ohm and 8-ohm 1/4" output jacks
Audio Controls & Built-In Effects
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Equalization: Passive 3-band EQ (Bass, Mid, Treble) both channels share the EQ controls
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Bright Switch: Adds a 6 to 12 dB boost at 6 kHz
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Channel 1 Gain Boost: +6 dB push/pull boost
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Channel 2 Gain Boost: +10 dB push/pull boost
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Reverb: Built-in Accutronics long-tank spring reverb [1, 2]
Connectivity (Rear Panel)
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Inputs: Single 1/4" guitar input instrument jack
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Speaker Outputs: Dedicated 4-ohm and 8-ohm 1/4" output jacks
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Effects Loop: Buffered effects loop (Send/Return) [1, 2, 3]
Physical & Power Requirements
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Cabinet Build: Plywood construction finished in black Tolex
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Weight: Approximately 22 kg (43–48 lbs)
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Production Years: 1989–1991 (Built in the USA)
