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
- Dimensions: 22 x 26 x 12
- Tolex: Black, Snakeskin, White Snakeskin, and Red Cobra
- Grill Cloth: Dark Gray
- Logo: Chrome & Black Script
- Hardware: Large Chassis Straps 5 5/8''
- Handle: Black Strap
- Feet: Chrome Glides
- Corners: Chrome Corners w/ Lip
- Knobs: Red or Black (90-94) Unnumbered
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
53 comments
Actually that should be 8 ohms on the impedance switch for 16 ohm speaker load – my apologies!
Hi EvilTwin. To switch between 25/100 watts R.M.S. is a simple matter of flipping the switch on the front. It’s another awesome feature of the world’s most underrated amp! You can remove the two inner tubes as described to reduce the power further. You are then running in “Low Power Mode”, which means the switch toggles between 15/60 watts R.M.S. You need to remember to change the impedance switch to 4 ohms because you are using half the number of tubes. I do love the power though. I too find it difficult to find a very low at-home volume, but I love the power live. I have never met a room I could not fill using this amp, and it sounds amazing at high volumes. For the users here, high volume will be about 3!
How do I switch mine between 25/100 watts. I know I have to remove two tubes, but don’t know which inches. Also would I need to have it re-biased?