Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring

Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring

Mod Electronics
Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring image 1
Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring image 2
Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring image 3
Customer image:<br/>"with 15 watt chassis - beautiful sound"
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Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring image 1Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring image 2Reverb Tank - MOD®, 4AB3C1B, Long Decay, 2-Spring image 3
Customer Images:
Customer image: "with 15 watt chassis - beautiful sound"
$24.50
In Stock
  • Replaces: 4AB3C1B
  • Solid, sturdy construction
  • Type: Long (2 Spring) tank
  • Decay: long decay
  • Input: 8 Ω
  • Output: 2,250 Ω
  • Connectors: Input insulated/output grounded
  • Locking: No lock
  • Mounting: Horizontal/open side down

Compatible amps include tube reverbs from 1963-1990 such as the Princeton Reverb, Vibrolux Reverb, Deluxe Reverb, Super Reverb, Pro Reverb, Twin Reverb, Quad Reverb, Super Six Reverb, Vibrosonic Reverb. This also includes all reissue equivalents. Also includes Fender® ’63 Reissue Reverb Unit, Fender® Concert II, Mesa Boogie® MK2C plus other models, LAB® Series L5, L7, L9, Koch® Powertone I, B-52® AT-100. Also compatible with some speaker-driven, type F, vintage Ampeg® amps such as B12X, B12XY, Echo Jet, Echo Twin.

The MOD® 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.

RoHS Compliant
SKU:
P-RMOD-4AB3C1B
Item ID:
003293
UPC/EAN:
797734820928
Brand:
Mod Electronics
Input Impedance:
Number Of Springs:
Output Impedance:
Tank Length:
Product Measurements by Type
Connectorsinput insulated, output grounded
Decay Timelong (2.75 to 4.0 s)
Grommet Hole Diameter0.2 in.
Input Impedance8 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
Springs2
Thickness0.04 in.
Packaging Information
Packaging Dimensions17 in. × 5 in. × 3 in.
Weight (Packaging)1.75 lbs.

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Specifications, Files, and Documents

Sound Samples:

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on November 16th, 2016.
Matt H.
November 16th, 2016
Staff Member
The construction of these MOD tanks is designed to sound as close as possible to vintage reverb tanks of the 60's.This tank would serve as a great upgrade to the stock unit in a Fender Twin.
Asked by Anonymous on November 16th, 2016.
Matt H.
November 16th, 2016
Staff Member
You will want to determine several factors regarding your reverb circuit such as input/output impedance, mounting orientation,number of springs, etc. I would suggest visiting our tech corner for a full explanation of reverb tanks. I'll include the address below: https://www.tubesandmore.com/tech-corner/spring-reverb-tanks-explained-and-compared
Asked by Anonymous on November 16th, 2016.
Matt H.
November 16th, 2016
Staff Member
The MOD series tanks are designed to sound much closer to vintage sounding reverb tanks than other brands and their construction lends itself well to this goal. This will definitely be a great upgrade or replacement and should provide a nice lush reverb for your deluxe.
Asked by Anonymous on November 16th, 2016.
No answers yet!
Asked by Anonymous on November 17th, 2016.
Matt H.
November 17th, 2016
Staff Member
Most MOD owners feel that these reverb tanks are the most accurate to the original tanks found in vintage Fender amps. In most cases this would be considered an upgrade.
Asked by Anonymous on November 17th, 2016.
Matt H.
November 17th, 2016
Staff Member
Hi, from our limited research it appears that you need an 8EB2C1B for your Valveking. I would confirm this by looking at the number on your tank.
Asked by Anonymous on November 17th, 2016.
Matt H.
November 17th, 2016
Staff Member
Yes, this will work in your '65 Princeton Reverb.
Asked by Anonymous on March 16th, 2017.
Matt H.
March 16th, 2017
Staff Member
As long as the second and third character match (AB) you can play around with the other options. The first character will describe the tank size and number of springs. The fourth character represents your decay time and comes in three different types (short, medium, and long). For more information please see our reverb tank article in the tech corner above.
Asked by Anonymous on September 20th, 2017.
Matt H.
September 20th, 2017
Staff Member
Yes, we believe that the MOD series of reverb tanks are an improvement. These tanks are made as close as possible to the original USA made Accutronics tanks.
Asked by Anonymous on October 14th, 2017.
Matt H.
October 17th, 2017
Staff Member
The 4EB3C1B is the proper replacement for your Hot Rod Deluxe.
Asked by Anonymous on January 10th, 2018.
BradWbr
January 10th, 2018
Staff Member
Although we have not been able to verify this information, our customers have reported that this is the correct tank for the Supersonic 22.
Asked by Anonymous on May 26th, 2018.
Matt H.
May 31st, 2018
Staff Member
We are not sure if this is compatible with the Spring Thing. What you will want to do is examine the tank and find the tank code.
Asked by Anonymous on September 5th, 2018.
BradWbr
September 5th, 2018
Staff Member
Yes, this is built with the longest decay time for reverb tanks.
Asked by Anonymous on January 29th, 2019.
BradWbr
January 29th, 2019
Staff Member
We do not advise changing the size of the tank, simply because there are no 9.25" and 16.75" tanks that share the same input and output impedances.
Asked by Anonymous on June 20th, 2020.
BradWbr
June 23rd, 2020
Staff Member
Customers have reported this being the appropriate tank for the Super Sonic 22, so there is a very good chance this is the correct tank for your amp, but we do not have a way to verify this to be true.

Product Reviews

4.65 out of 5 based on 20 reviews
- May 18th, 2020
5 out of 5

The MOD rverb tank was easy to install and sounds great. This is the brand used by Carr Guitar amplifiers.They recommended this MOD reverb tank over other more well known brands and after hearing it I understand why.

- April 30th, 2019
5 out of 5

I have a 1968 SUNN Solarus amp head that I'm restoring. Someone removed the reverb tank and cut down the box approximatley 3 inches. I made a new box with the proper dimensions (24"x10"x10") installed new MOD reverb tank and new RCA cables and she's back to her glory. Thanks

- March 3rd, 2019
5 out of 5

I installed this tank in a silverface Princeton Reverb. The original Accutronics tank had dropped a spring when a transducer broke, and sounded terrible as a result. This tank has a longer decay than I think is typical of vintage Fenders, but otherwise sounds great! Full-on surf sounds are there if you want them, as well as more moderate settings. Installation is easy! I'm glad I did this.

- March 3rd, 2019
5 out of 5

I installed this tank in a silverface Princeton Reverb. The original Accutronics tank had dropped a spring when a transducer broke, and sounded terrible as a result. This tank has a longer decay than I think is typical of vintage Fenders, but otherwise sounds great! Full-on surf sounds are there if you want them, as well as more moderate settings. Installation is easy! I'm glad I did this.

- January 15th, 2019
5 out of 5

Great tank!!!! I would highly recommend these and would purchase them again for sure!!!!

- July 23rd, 2018
5 out of 5

worked out better than stock.

- October 20th, 2016
1 out of 5

Mine was loosely shipped in a bigger box with my other items. It failed after about 3 hours use. AES had me ship the defective one back which cost me more than buying one...
Now I have a two week or so wait for another tank to arrive and a customer without reverb in his amp. The tank did sound pretty good while it lasted. I could have bought one locally and will probably have to for this customer.

- May 14th, 2016
5 out of 5

Everything was really smoothm, thank you, the product arrive perfectly very well packaged and worked without any problem, thank you for a great transaction and a satisfied customer.

- December 12th, 2015
5 out of 5

Great part, great price

- July 16th, 2015
5 out of 5

Nice gutteral sound.