Reverb Tank - Mod® 9AB2A1B, Medium Decay, 3-Spring

Mod Electronics
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Reverb Tank - Mod® 9AB2A1B, Medium Decay, 3-Spring

In Stock
  • Replaces: 9AB2A1B
  • Solid, sturdy construction
  • Type: Long (3 Spring) tank
  • Decay: medium decay
  • Input: 10 Ω
  • Output: 2,575 Ω
  • Connectors: Input grounded/output grounded
  • Locking: No lock
  • Mounting: Horizontal/open side down

Compatible amps include select Fender®models, select Vox® AC30 models, Engl® Screamer, Mesa Boogie® MK1,MK2,MK3,MK4,MK5, Maverick, Transatlantic 30, Blue Angel, Heartbreaker, Roadking II, Trem-O-Verb, DC Models, Express Models, Roadster, Lonestar,Electradyne, RA-100, Lonestar Special, plus others.

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
Product Measurements by Type
Connectorsinput grounded, output grounded
Decay Timemedium (1.75 to 3.0 s)
Grommet Hole Diameter0.2 in.
Input Impedance10 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)2.575 kΩ
Thickness0.04 in.
Packaging Information
Packaging Dimensions17 in. × 5 in. × 3 in.
Weight (Packaging)1.3272 lbs.

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Questions and Answers

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Asked by Anonymous on November 27th, 2019.
December 2nd, 2019
Staff Member
As long as the cables are still functional, they should be able to be reused when installing a replacement tank.
Asked by Anonymous on October 2nd, 2020.
October 2nd, 2020
Staff Member
This does not come with the mounting screws.

Product Reviews

5.00 out of 5 based on 5 reviews
Damon Fernandes - August 15th, 2020
5 out of 5

Excellent replacement for the 2 spring tank that came with my California Tweed.

RonSound - November 30th, 2018
5 out of 5

Bought this for replacement in a vintage Kay 710 reverb unit. Worked great and gave it a really nice surf sound. The only thing I had to do was remove the mounting cushions and enlarge one of the holes to hold the ac cord. 15/10 would buy again.

Flavio Albuquerque - October 19th, 2018
5 out of 5

Very nice replacement for my Mesa Boogie Express.

Franko 101 - November 15th, 2015
5 out of 5

Excellent replacement for My Engl E344 100 watt 1x12 Raider. Fast shipping Nice packaging, Very Satisfied. Just like it states it is a Medium Type Reverb, Sounds better then what i had, Absolutely nothing!., Was bad right out of the Box! Brand New From Engl! A bad ReverbBox!. Thank the Gods for Finding this replacement. Thank you all at Amplified Parts!

wellst703 - October 31st, 2011
5 out of 5

just received this reverb tank in the mail, i had to change out the tank on my Mesa Boogie Blue Angel 1x12 combo..the tank was an exact fit and sounds absolutely amazing! quick shipping and very secure/safe packaging! very good experience overall and will gladly do business again