Reverb Tank - Mod® 4EB3C1B, Long Decay, 2-Spring

Reverb Tank - Mod® 4EB3C1B, Long Decay, 2-Spring

Mod Electronics
Reverb Tank - Mod® 4EB3C1B, Long Decay, 2-Spring image 1
Reverb Tank - Mod® 4EB3C1B, Long Decay, 2-Spring image 2
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Reverb Tank - Mod® 4EB3C1B, Long Decay, 2-Spring image 1Reverb Tank - Mod® 4EB3C1B, Long Decay, 2-Spring image 2
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  • Replaces: 4EB3C1B
  • Solid, sturdy construction
  • Type: Long (2 Spring) tank
  • Decay: long decay
  • Input: 600 Ω
  • Output: 2,250 Ω
  • Connectors: Input insulated/output grounded
  • Locking: No lock
  • Mounting: Horizontal/open side down

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.

The Mod Electronics Reverb Tanks are high quality upgrade units. Some of the major differences between the Mod®s and other reverb tanks are that the Transducers are wired directly to their respective RCA jacks as opposed to current production tanks where Transducers are connected by a detachable plug to their respective RCA jacks. This makes the tanks less receptive to any outside interference. The original Hammond Accutronics tanks from the 1960s were also wired directly to their respective RCA jacks. In addition, very close attention has been paid to the spacing and size of the lamination of the Transducers resulting in a more vintage like tone.

Questions about reverb tanks? See our tech articles for more information.

Item ID:
Input Impedance:
Number Of Springs:
Output Impedance:
Tank Length:
RoHS Compliant
Connectorsinput insulated, output grounded
Decay Timelong (2.75 to 4.0 s)
Grommet Hole Diameter0.2 in.
Input Impedance600 Ω
Item Height1.5 in.
Item Length16.75 in.
Item Width4.25 in.
Mounting Hole Center to Center A8.75 in.
Mounting Hole Center to Center B3.75 in.
Mounting Planehorizontal, open side down
Output Impedance (Zout)2.25 kΩ
Thickness0.04 in.
Packaging Information
Packaging Dimensions17 in. × 5 in. × 2.5 in.
Weight (Packaging)1.3426 lbs.

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Questions? Contact us at [email protected], or give us a call at 480-820-5411

Product Reviews

5.00 out of 5 based on 5 reviews
Nate Z - June 5th, 2022
5 out of 5

I was a little hesitant to purchase a long decay tank, but I've never been more pleased. Dripping wet and delicious reverb that somehow isn't cloying or overpowering. If you like to swim in a sea of ethereal tone this tank is for you. Very addictive indeed.

Dan B - July 20th, 2021
5 out of 5

Bought this as a replacement reverb tank for an Ampeg VL-503 combo. WOW, the sound is a huge improvement over the previous tank. Deep, lush, definitely long decay. What I had with the reverb dimed out before I can now get more of at 8:00 on the control. Very impressed.

Leslie Udaykee - October 30th, 2019
5 out of 5

Thank you for your timely replacement of the reverb tank broken in shipping.

Devo Carrillo - August 14th, 2017
5 out of 5

This reverb tank actually sounds better than the original accutronics used by Fender in my Deville. very pleased.

Paul Azpeitia - May 5th, 2016
5 out of 5

Customer Service was above and beyond great in ensuring I purchased the right reverb tank for my needs: CS went over ohm ratings, delay time, and decay time, and even fished the tank out of the shipping department when we thought I'd ordered the wrong item, then returned it when we determined the tank was good for my needs. The tank itself is a HUGE improvement over the factory tank that came with my Vox AC 30 CC2X-it produces as close to a classic Fender Reverb sound is as possible with the Vox Circuit. Shipping was prompt, the item was securely packed, and the MOD tank is of top-notch quality!