FENDER RED KNOB TWIN (THE TWIN)

FENDER RED KNOB TWIN (THE TWIN)

1987-1994 

Configuration: Combo
Power: Low: 25 Watts, High: 100 Watts
Effects: Reverb, Effects Loop

SCHEMATIC

LAYOUT

  • Front Panel: Volume, Treble/Boost, Middle/Cut, Bass - In, In - In, In - Gain, Treble/Boost, Middle/Boost, Bass/Boost, Presence/Notch, Volume/Channel, Reverb Select Switch, Reverb - Hi-Lo Power Switch, Standby Switch, Power Switch, Pilot Light
  • Back Panel: Fuse, Effect Out, Effect In, Power Amp Thru, Loop Level Switch, Output Bias Adjust, Output Balance Adjust, Foot Sw, XLR Line Out, External Speaker Series, External Speaker Parallel, Impedance Switch

CABINET 

SPEAKERS 

  • Size: 2 x 12
  • Impedance: 16 ohms (Two 8 ohm speakers wired in series)
  • Model: 8 ohm Eminence Made Fender Special Design Blue Label Speakers

TUBES

  • Pre amp: 5 x 12AX7, 2 x 12AT7
  • Power: 4 x 6L6
  • Bias: Fixed w/ Bias Adjustment Pot
  • Rectifier: Solid State
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54 comments

I was given one a month ago, for FREE! Was in my fiends basement for 15 years or so, and he told me that he expected that is maybe good for parts. So, I took it apart in his basement to reduce the weight to get it up the narrow and winding stirs, and discovered it to be in perfect shape, got it home and tested the tubes and speakers before testing the guts, all perfect though the sepakers suck, so I replaced them with an a spare E120 that I had, and a Celestion Lead 80, same what I use in my homebrew amp (Plush Bass 100 guts, modified Plexi tone stack, 90dB gain if I switch in the extra tube). So, quite nice!

Tom,

I just picked up a 1994 Black Knob model off of Facebook Marketplace for a really good price, IMO. The previous comments about the weight of this thing are dead on…it’s a brute to carry. Luckily for me, this one has pop-out casters to let it roll. I plan on adding a set of Fender Tilt Back Legs in the future.
Love the Fender clean sounds with this amp…it does good with a Strat in all pickup switch positions, especially with the position 2 & 4 “Quack” sounds. So far, I’ve just played it using the 25 Watt Reduced Power setting.
A previous owner apparently thought that the Reverb pot was a “pull boost” switch like most of the other pots are. The post of the Reverb Pot had been pulled out of the internal carbon trace disc, so I had to remove that pot from the circuit board, take it apart and then piece it back together. After re-assembly, the reverb sounds great and the pot seems to function properly.
Not sure how much use I’ll get from this amp…my “Go To” amplifiers are a Mojotone 5E3 Tweed Amp that I built in the Mojotone Amp Building Class in December 2024 & a 1990 Fender ’57 Tweed Bassman Reissue. I klnow the Twin is there when and if I need it though.

Bill T,

I’ve owned a Fender The Twin (black knob) since new. I never liked the second channel much, but use only the clean channel with pedals. I’ve since bought a Bandmaster VM, and have found them quite similar, although without The Twin’s massive authority, and ‘ ín your face’ ness.. Although, I really wish I had a pair of tilt-back Fender legs for it.

ritchie BG,

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