Reverb Tanks

Spring reverb tanks are used to create a unique reverberation effect in guitar amps and organs. The reverberation effect is created when an audio signal created by a transducer is sent through one or more springs, the movement of the springs is then converted back into an audio signal by another transducer at the other end, creating the unique sound. Not sure which tank you're looking for or what a 4AB3C1B is? Check out our spring reverb calculator to help you determine what these tank designations mean!

Mod Electronics

P-RMOD-4EB2C1B Reverb Tank - Mod®, 4EB2C1B, Medium Decay, 2-Spring
Long (2 Spring) tank, medium decay, 600Ω in / 2,250Ω out. Input insulated/output grounded connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Peavey™ Bravo 112, Encore 65, Classic 30, Backstage 30, Valveking 100, Windsor Studio (Replaces Peavey™ part number 71011114) . Also a suitable upgrade/ replacement for the Vox™ AC30CC series amp.
$25.85
P-RMOD-4FB3D1B Reverb Tank - Mod®, 4FB3D1B, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 1,475Ω in / 2,250Ω out. Input insulated/output insulated connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units.
$25.85
P-RMOD-4AB3C1B Reverb Tank - Mod®, 4AB3C1B, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 8Ω in / 2,250Ω out. Input insulated/output grounded connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units.
$25.85
P-RMOD-4AB3C1C Reverb Tank - Mod®, 4AB3C1C, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 8Ω in / 2,250Ω out. Input insulated/output grounded connectors. Vertical/connectors up mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Fender® stand alone reverb and original ’63 Reverb. Also used in Marshall™, and Ampeg™ amps.
$25.85
P-RMOD-4BB3C1B Reverb Tank - Mod®, 4BB3C1B, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 150Ω in / 2,250Ω out. Input insulated/output grounded connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Fender® Blues Deluxe (original version), Blues Deville (original version), London Reverb, Studio Lead, Harvard Reverb II, Showman 115 (80’s version), Rivera™ Rake, Jake Studio Combo, and Fandango models, Laney™ VC30, Crate™ V-32 Palomino.
$25.85
P-RMOD-4AB2C1B Reverb Tank - Mod®, 4AB2C1B, Medium Decay, 2-Spring
Long (2 Spring) tank, medium decay, 8Ω in / 2,250Ω out. Input insulated/output grounded connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units.
$25.85
P-RMOD-4DB2C1D Reverb Tank - Mod®, 4DB2C1D, Medium Decay, 2-Spring
Long (2 Spring) tank, medium decay, 250Ω in / 2,250Ω out. Input insulated/output grounded connectors. Vertical/connectors down mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Marshall™ JCM800 (select models) Marshall™ Valvestate (select models). Can also be used as a replacement/upgrade for the smaller tank in Fender® FM210 and 212 models.
$25.85
P-RMOD-4FB3A1B Reverb Tank - Mod®, 4FB3A1B, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 1,475Ω in / 2,250Ω out. Input grounded/output grounded connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Ampeg® amps (some models), Epiphone® EA-28RVT, Gibson® GA19RVT and GA20RVT, Music Man® RP and RD series, plus others .
$25.85
P-RMOD-4EB3C1B Reverb Tank - Mod®, 4EB3C1B, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 600Ω in / 2,250Ω out. Input insulated/output grounded connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Fender® Hot Rod Deville, Hot Rod Deluxe, Blues Deluxe (reissue only), Blues Deville (reissue only). Replaces Fender® Part Number 0050394000. Also, fits Traynor™ YCV50 as well as some Music Man™ and Peavey™ models. Suitable upgrade/ replacement for the Vox™ AC30CC series amp.
$25.85
P-RMOD-4BB2A1B Reverb Tank - Mod®, 4BB2A1B, Medium Decay, 2-Spring
Long (2 Spring) tank, medium decay, 150Ω in / 2,250Ω out. Input grounded/output grounded connectors. Horizontal/open side down mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Music Man™ amps as well as the Mesa Boogie™ F-30 and F-50 models.
$25.85
P-RMOD-4FB3A1A Reverb Tank - Mod®, 4FB3A1A, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 1,475Ω in / 2,250Ω out. Input grounded/output grounded connectors. Horizontal/open side up mounting. MOD® Reverb Tanks are high quality upgrade units.
$25.85
P-RMOD-4BB3C1D Reverb Tank - Mod®, 4BB3C1D, Long Decay, 2-Spring
Long (2 Spring) tank, long decay, 150Ω in / 2,250Ω out. Input insulated/output grounded connectors. Vertical/connectors down mounting. MOD® Reverb Tanks are high quality upgrade units. Compatible amps include Marshall™ DSL60, TSL60, DSL100, TSL100, DSL201, DSL401, TSL122.
$25.85