The 4AB3C1B 2-spring reverb tank is used a wide variety of amplifiers. The tank has a long decay time for players who are looking for heavy surf style reverb. Used in Fender Blackface and Silverface amps that had reverb: Twin Reverb, Deluxe Reverb, Princeton Reverb, Super Reverb, Vibroverb, Vibrolux Reverb, Pro Reverb. Also used in some Marshall and Ampeg amplifiers with spring reverb.
Size: Long Number of Springs: 2 Springs Input Impedance: 8 Ohm Output Impedance: 2250 Ohm Decay Time: Long Decay Connection: Input Insulated/Output Grounded Locking Device: No Lock Mounting Plane: Horizontal Open Side Down