The Fender Super 112 Red Knob is a 60-Watt Tube Powered Guitar amplifier designed by Bill Hughes and Mark Wentling in the 1990s.

Fender's red knob amps were designed by Bill Hughes and Mark Wentling. Wentling may have done more the "nuts & bolts" designing, as he designed many of Music Man's amps in the 70s. Paul Rivera worked for Fender in the late 70's / early 80's and was responsible for the design of the Blackface "II" series that came out in '81/'82. The Princeton Reverb II, the Deluxe Reverb II, and the ever-popular SuperChamp.  These were designed in response to the market wanting more and more gain - ala Mesa Boogie. They did this at the expense of "Vibrato" which apparently no one wanted anymore. The red-knob series came along a couple of years later and continued the trend with mostly larger more powerful models. 

Years of Production: 1990 - 1992
Era: Red Knob
Controls: Black forward facing w/ white labels, controls numbered 1 – 10
Knobs: Red Black Pointer Knob, Unnumbered
Faceplate
    Front: In, In, Vol (clean), Gain, Vol (drive), Channel Sw, Treb, Mid, Bass, Reverb, Presence, Footswitch In, Standby Sw, Power Sw, Pilot Lamp
    Rear: 8 Ohm Speaker Out, 4 Ohm Speaker Out, Line Out, Power Amp In, Pre Amp Out
Cabinet
    Dimensions:  17x18x11
    Hardware: Medium Chassis Straps 4 5/8"
    Handle: Black Strap
    Feet: Glides
    Corners: Corner Protectors
Covering Material
    Tolex/Tweed: Black Tolex
    Grill Cloth: Dark Gray Grillcloth
Logo: Grill mounted, raised, chrome & black script
Weight: 52 Lbs
Speaker
    Size: 1 x 12
    Impedance: 8 ohms
    Model: Stock is Jensen Speaker
Effects: Reverb
~Watts: 60 watts RMS
Tubes
    Pre amp: 2 x 12AX7; 2 x 12AT7 (reverb)
    Power: 2 x 6L6gc
Bias: Fixed Bias

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