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

Mod
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/>"Fender Princeton Amp 64 Front View"
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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: "Fender Princeton Amp 64 Front View"

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

$23.50
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
Input Impedance:
Number Of Springs:
Output Impedance:
Tank Length:
Product Measurements
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.
Length16.25 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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Questions and Answers

Click each question to see its answers.
Asked by Anonymous on August 27th, 2015.
JustinG
August 27th, 2015
Staff Member
Top Contributor
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.
Anonymous
October 2nd, 2015
Will this work in a 94 Fender Vibroking
Asked by Anonymous on November 14th, 2015.
JustinG
November 17th, 2015
Staff Member
Top Contributor
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.amplifiedparts.com/tech_corner/spring_reverb_tanks_explained_and_compared
Asked by Anonymous on November 19th, 2015.
JustinG
November 20th, 2015
Staff Member
Top Contributor
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 April 24th, 2016.
JustinG
April 27th, 2016
Staff Member
Top Contributor
I would suggest an internet search and perhaps someone else has upgraded their Crate tank to a MOD. Beyond that we would need the numbers from the existing tank and perhaps we could find a solid replacement.
Asked by Anonymous on May 24th, 2016.
JustinG
May 24th, 2016
Staff Member
Top Contributor
From what we could find from a brief internet research it appears as though this is the correct reverb tank for your unit. We always suggest further independent research to back up our findings as we are not techs.
Asked by Anonymous on June 26th, 2016.
Matt H
June 27th, 2016
It appears from doing a quick internet search, the JCM 900 uses a 8DB2C1B, and the JCM 2000 uses a 4BB3C1D. You might want to confirm these numbers by looking at your reverb tanks. Most tanks will have an 8 character number on them.
Asked by Anonymous on July 19th, 2016.
Matt H
July 19th, 2016
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 September 13th, 2016.
Matt H
September 13th, 2016
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 15th, 2016.
Matt H
November 15th, 2016
Yes, this will work in your '65 Princeton Reverb.
Asked by Anonymous on March 16th, 2017.
Matt H
March 16th, 2017
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 April 4th, 2017.
Matt H
April 6th, 2017
From our limited research it appears that the 4AB3C1B was the original tank in your amp.
Asked by Anonymous on April 22nd, 2017.
Matt H
April 25th, 2017
As long as the second and third characters (AB) in 4AB3C1B match with the tank in your amp, you can play around with the other numbers. For example, if you wanted a long tank with 3 springs instead of two, you would want a 9AB3C1B.
Asked by Anonymous on August 10th, 2017.
Matt H
August 10th, 2017
We simply do not have the resources or reference materials to determine what type of reverb tank your Sunn needs. If you have the original tank, you will want to see if there is an alpha number code on it. If you can get that information to us we might be a able to help you out.
Asked by Anonymous on September 15th, 2017.
Matt H
September 19th, 2017
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 17th, 2017.
Matt H
October 17th, 2017
The 4EB3C1B is the proper replacement for your Hot Rod Deluxe.
Asked by Anonymous on January 6th, 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 January 9th, 2018.
BradWbr
January 10th, 2018
Staff Member
Unfortunately, we are not techs and can not properly diagnose the problems you're having with the amp. We recommend taking it to a qualified repairman.
Asked by Anonymous on February 16th, 2018.
Matt H
February 16th, 2018
The 9FB2A1C should work but you will need to confirm this by looking at your existing tank to insure compatibility.
Asked by Anonymous on February 20th, 2018.
Matt H
February 23rd, 2018
Unfortunately we do not have reference materials to determine what tank goes in your amp.
Asked by Jay Thompson on July 29th, 2018.
Matt H
July 30th, 2018
We are not sure if this is the correct replacement tank for your amp.
Asked by Anonymous on August 6th, 2018.
BradWbr
August 6th, 2018
Staff Member
Unfortunately we do not have reference materials to determine what tank goes in your amp.
Asked by Anonymous on August 22nd, 2018.
BradWbr
August 22nd, 2018
Staff Member
The 4EB3C1B has a long decay time, so finding a reverb tank with a more lush sound may be as simple as replacing a weak or defective tank with a new one. The MOD brand tanks are highly regarded in the industry and you can view the 4EB3C1B at the link below: https://www.amplifiedparts.com/products/reverb-tank-mod-4eb3c1b
Asked by Anonymous on September 4th, 2018.
BradWbr
September 5th, 2018
Staff Member
Yes, this is built with the longest decay time for reverb tanks.
Asked by Anonymous on January 24th, 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 April 27th, 2019.
BradWbr
April 29th, 2019
Staff Member
We do not have cross reference materials to verify what tank is used in your mixer. The most important information you'll need to determine the correct one for your equipment is the input and output impedances. If you can get those, we may be able to assist further in helping you find a tank.

Product Reviews

5.00 out of 5 based on 19 reviews
- August 1st, 2018
5 out of 5

Replaced the stock reverb tank(accutronics) in my 2000 "the Twin" as I felt it sounded worn out. The Mod reverb tank sounds great & has given my amp new life.

- December 1st, 2017
5 out of 5

This tank is a direct replacement for the "Accutronics & Belton 64063" tank in my Fender Super Sonic 22 combo. The stock tank was acting up. This MOD tank sounds much better than the stock tank. It gets pretty surfy wet if you dial it up.

- February 11th, 2017
5 out of 5

Great Reverb tank. I bought it to replace the unit in my new Fender Super Sonic. The Mod I received was exactly what was in my Fender SS. No difference at all. Check your amp before you decide to replace the tank. I thought I was buying an upgrade but it turns out I didn't need it.

- January 18th, 2016
5 out of 5

Better than factory. Very pleased (94 twin)

- January 5th, 2016
5 out of 5

Replaced bad tank in Fender Super Sonic. Now she's right for the first time. Sounds great. Better than factory tank. Now she sings,cries. Price was great. Delivery time was great. Thanks AP. I have my amp back.I give you 5 stars !

- August 14th, 2014
5 out of 5

Bought this to replace a broken accutronics reverb tank that originally came with a recently aquired used Fender Deluxe Reverb Reissue. I have to say that I am extremely satisfied. It has a nice full decay and leans towards the bright side of the spectrum. The decay is nice and smooth without any "echo" type effect. Only time will tell how long it will last but for the price, It's as good as it gets. I would recommend this tank to anyone looking for a bright, smooth, and long decay in their reverb.

- March 1st, 2013
5 out of 5

Direct replacement for the tank in my late 70's Ampeg VT-40 combo. Great value.

- June 6th, 2012
5 out of 5

Replaced both tanks in my Mesa Boogie MK2C and Mesa Express,

these replacements are better made and offer a better sound overall than the original Accutronics and cheaper!

Great value, buy one!

- August 11th, 2011
5 out of 5

Replaced the verb in a 80's Peavey Backstage. This reverb is far superior to the stock one. Nice size...fit perfectly. Very smooth sounding.

- June 1st, 2011
5 out of 5

Great price, got it fast, My Fender Deluxe has reverb again. It fit right in the bag, plugged in the same way, done deal. Thanks Amplified Parts.

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