Reverb Tank - Mod® 4FB3A1B, Long Decay, 2-Spring

Mod Electronics
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Reverb Tank - Mod® 4FB3A1B, Long Decay, 2-Spring

$27.95
In Stock
  • Replaces: 4FB3A1B
  • Solid, sturdy construction
  • Type: Long (2 Spring) tank
  • Decay: long decay
  • Input: 1,475 Ω
  • Output: 2,250 Ω
  • Connectors: Input grounded/output grounded
  • Locking: No lock
  • Mounting: Horizontal/open side down

Compatible amps include Ampeg® amps (some models), Epiphone® EA-28RVT, Gibson® GA19RVT and GA20RVT, Music Man® RP and RD series, 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.

SKU:
P-RMOD-4FB3A1B
Item ID:
003299
UPC/EAN:
609722126632
Input Impedance:
Number Of Springs:
Output Impedance:
Tank Length:
RoHS Compliant
Connectorsinput grounded, output grounded
Decay Timelong (2.75 to 4.0 s)
Grommet Hole Diameter0.04 in.
Input Impedance1,475 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 Hole Diameter0.2 in.
Mounting Planehorizontal, open side down
Output Impedance (Zout)2.25 kΩ
Springs2
Packaging Information
Packaging Dimensions17 in. × 5 in. × 2.5 in.
Weight (Packaging)1.3007 lbs.

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Questions? Contact us at [email protected], or give us a call at 480-296-0890

Product Reviews

5.00 out of 5 based on 4 reviews
Dave Smeall - January 2nd, 2021
5 out of 5

Reverb tank arrived well packaged. Now installed in a 1970 Traynor YGM III, great improvement.

Robin Dare - August 25th, 2019
5 out of 5

Excellent!-Big Improvement to my reverb in my MusicMan hd 130

Jim - January 27th, 2019
5 out of 5

I was able to replace the reverb tank with a new MOD and it works perfectly. Thanks!

Ewan Tytler - October 9th, 2018
5 out of 5

I bought this MOD® 4FB3A1B reverb tank for my 1979 Music Man 112RD sixty-five. This is the early version of the 112RD with the 6CA7 vacuum tubes (valves). I replaced the original OC Type 271 reverb tank, which sounded brittle and harsh. The MOD® tank transformed the sound of the reverb and it now sounds full, rich, smooth and natural. I had to buy a new reverb bag and longer wires as the OC unit was much shorter. I thoroughly recommend this high quality, well-engineered unit.