FENDER 400PS

Model/Circuit Number: 400PS
Years of Production: 1970 - 1975
Era:
Configuration: Head
Controls: Black forward facing with white labels
Knobs: Black Skirted with Chrome Center Numbered 1-10

Schematics

• 400 PS

Faceplate

• Front: Power Sw, Standby Sw, Pilot Lamp - Bass: In, In, Deep Sw, Vol, Treb, Bass - Normal: In, In, Bright Sw, Vol, Treb, Mid, Bass, Reverb, Speed, Intensity - Master Volume
• Rear:

Cabinet

• Dimensions: 11½'' x 28'' x 12¾''
• Hardware:
• Handle: x3 Black Strap
• Feet: Casters
• Corners: Chrome Corners with Lip

Covering Material

• Tolex/Tweed: Black
• Grill Cloth: Blue / White / Silver or Black with White Trim

Logo: Grill Mounted, Raised, Chrome and Black Script With Tail
Weight: Cabinet: 126 lbs ; Head: 84 lbs
Speaker

• Size: Fender Bass Bottom Ext Cab 1 x 18 with folded-horn design
• Impedance: 4 ohms
• Model:

Effects: Tremolo, Reverb
~Watts: 435 watts
Tubes

• Pre amp: 2 x 7075 ; 12AX7, 6L6GC
• Power: 6 x 6550

Bias: Fixed
Rectifier: Solid State

Comments: The 400PS was the first large amp made by CBS, and the largest ever made by Fender. The chassis alone weighs as much as a Twin Reverb.
The output of the 400PS was divided into three 145 Watt power sections so it took three cabs to get the entire 435 Watts.