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Reverb Tank - Mod® 4FB3A1A, Long Decay, 2-Spring

Name: Reverb Tank - Mod® 4FB3A1A, Long Decay, 2-Spring
SKU: P-RMOD-4FB3A1A
Price: 27.95 USD
Availability: InStock
Rating: 5.00 (1 reviews)

$27^.95

In Stock

Replaces: 4FB3A1A
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 up

Compatible amps include most vintage Ampeg® amps with capacitance driven reverbs such as the Rocket, Reverberocket (tube-driven), Jet, Gemini, AC12, B12XT, GV15, GV22, V2, V4, VT22, VT40. Also compatible with select Kustom® amps from the 60s and 70s.

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-4FB3A1A

Item ID:

039596

UPC/EAN:

841358106248

Connector Type:

Grounded Input, Grounded Output

Decay Time:

Long (2.75 to 4.0 s)

Input Impedance:

1,475 Ohm

Mounting Plane:

Horizontal, Open Side Up

Number Of Springs:

Output Impedance:

Tank Length:

Type:

RoHS Compliant

Accessory Items:

Product Measurements by Type
Connectors		input grounded, output grounded
Decay Time		long (2.75 to 4.0 s)
Grommet Hole Diameter		0.2 in.
Input Impedance		1,475 Ω
Item Height		1.5 in.
Item Length		16.75 in.
Item Width		4.25 in.
Mounting Hole Center to Center A		8.75 in.
Mounting Hole Center to Center B		3.75 in.
Mounting Plane		horizontal, open side up
Output Impedance (Z_out)		2.25 kΩ
Springs		2
Thickness		0.04 in.

Packaging Information
Packaging Dimensions		17 in. × 5 in. × 3 in.
Weight (Packaging)		1.75 lbs.

Sound Sample - Drum Machine Clap	All Models
Sound Sample - Drum Machine Snare	All Models
Sound Sample - Quick Strum	All Models
Sound Sample - Stacatto	All Models
Sound Sample - Sustained Chord	All Models
Sound Sample - Tremolo Chords	All Models

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Specifications, Files, and Documents

Sound Samples:

Now Playing: Sound Sample - Drum Machine Clap

Sound Sample - Drum Machine Clap00:05https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_16pt25_2-spring_long_drum_machine_clap.mp3

Sound Sample - Drum Machine Snare00:06https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_16pt25_2-spring_long_drum_machine_snare.mp3

Sound Sample - Quick Strum00:06https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_16pt25_2-spring_long_quick_strum.mp3

Sound Sample - Stacatto00:07https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_16pt25_2-spring_long_stacatto.mp3

Sound Sample - Sustained Chord00:08https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_16pt25_2-spring_long_sustained_chord.mp3

Sound Sample - Tremolo Chords00:09https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_16pt25_2-spring_long_tremolo_chords.mp3

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Questions and Answers

Click each question to see its answers.

1 answers Need a replacement for a Kustom Kasino Lounge L amp. Will this fit the bill?

Asked by Anonymous on August 30th, 2017.

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Matt H

August 31st, 2017

We simply do not have the resources or reference materials to say for sure whether this is the proper replacement tank for your amp.

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1 answers i need a 1BB1D1B spring reverb tank

Asked by Anonymous on June 24th, 2018.

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Matt H

June 25th, 2018

Unfortunately we do not have that tank.

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1 answers I have a Kustom 4-10SC, model K150-8. The reverb tank that came out of it is 4FB2A1A, don't know if it's original. I don't see that tank listed on your website but the closest one is 4FB3A1A, which is a little longer decay time. Would this replacement be ok for my amp? Do you ship to Canada?

Asked by Anonymous on March 6th, 2023.

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BradWbr

March 6th, 2023

Staff Member

This tank has identical specs to the 4FB2A1A other than the previously mentioned increase in decay time. While we don't have reference materials to determine the original tank in the Kustom amp in question, if the 4FB2A1A worked in the unit previously, this tank should also work. We do ship to Canada.