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Reverb Tank - Mod® 8AB2A1B, Medium Decay, 3-Spring
- Replaces: 8AB2A1B
- Solid, sturdy construction
- Type: Short (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® and Mesa Boogie® models, Reverend® Hellhound(early), Goblin, and Kingsnake, PRS® SE-20, 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-8AB2A1B
Item ID:
003301
UPC/EAN:
609722125307
Connector Type:
Decay Time:
Input Impedance:
Mounting Plane:
Number Of Springs:
Output Impedance:
Tank Length:
Type:
RoHS Compliant
| Connectors | input grounded, output grounded | |
| Decay Time | medium (1.75 to 3.0 s) | |
| Grommet Hole Diameter | 0.2 in. | |
| Input Impedance | 10 Ω | |
| Item Height | 1.5 in. | |
| Item Length | 9.25 in. | |
| Item Width | 3.38 in. | |
| Mounting Hole Center to Center A | 8.56 in. | |
| Mounting Hole Center to Center B | 2.81 in. | |
| Mounting Plane | horizontal, open side down | |
| Output Impedance (Zout) | 2.575 kΩ | |
| Springs | 3 | |
| Thickness | 0.04 in. |
| Packaging Dimensions | 9.3 in. × 3.4 in. × 1.6 in. | |
| Weight (Packaging) | 0.66 lbs. |
 Sound Sample - Drum Machine Clap | All Models |
| Sound Sample - Drum Machine Snare | All Models |
| Sound Sample - Quick Strum | All Models |
| Sound Sample - Staccato | All Models |
| Sound Sample - Sustained Chord | All Models |
| Sound Sample - Tremolo Chords | All Models |
My Project Lists
Specifications, Files, and Documents
Sound Samples:
Sound Sample - Drum Machine Clap00:05https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_9pt25_3-spring_medium_drum_machine_clap.mp3
Sound Sample - Drum Machine Snare00:06https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_9pt25_3-spring_medium_drum_machine_snare.mp3
Sound Sample - Quick Strum00:06https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_9pt25_3-spring_medium_quick_strum.mp3
Sound Sample - Staccato00:07https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_9pt25_3-spring_medium_staccato.mp3
Sound Sample - Sustained Chord00:08https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_9pt25_3-spring_medium_sustained_chord.mp3
Sound Sample - Tremolo Chords00:09https://www.amplifiedparts.com/sites/default/files/associated_files/mod_reverb_tank_9pt25_3-spring_medium_tremolo_chords.mp3
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Questions and Answers
Click each question to see its answers.
1 answers
Will this reverb tank work with my Mesa express series amp?
Asked by Anonymous on July 12th, 2016.
We are not sure if this will work with your Mesa Boogie. You need to find out what reverb tank you currenty have. The second and third character in a reverb tank number designate the input and output impedance. You need to make sure you pick a tank with the right impedance. For more info please visit our article on reverb tanks here: https://www.amplifiedparts.com/tech_corner/spring_reverb_tanks_explained_and_compared
1 answers
Will this work to replace a 4AB3C1B? The ohms are not exact but close. I'm looking for a shorter reverb time. Thanks.
Asked by Anonymous on April 6th, 2017.
Our understand is as long as the second and third character are the same, you can swap tanks to get difference specs.
1 answers
Hello
Can you use this tank to add reverb to an amp head that didn't come from the factory with reverb? To make things more difficult, I have an amp not listed in the item description(DV Mark Triple Six 40 watt). If it's reasonably possible in theory, I'll then speak with DV Mark Amps and find the right match as far as size, springs, Ohms etc.
Thanks
Asked by Anonymous on April 6th, 2017.
If your amp does not contain a reverb circuit then the tank can not be added without extensive modification. I would suggest contacting the builder to see if this is a viable option.
1 answers
Will his reverb tank works in my fender pro 185?
Asked by Anonymous on June 24th, 2017.
According to Fender you need an 8EB2C1B.
1 answers
Will this fit my DR. Z maz 38 sr?
Asked by Anonymous on July 11th, 2017.
We are unsure if this will work in your Dr. Z but we have some pointers to help you out. Always pay close attention to the series of letters and numbers associated with each reverb tank. In this case 8AB2A1B. If these numbers match your existing tank then this replacement will be compatible. You may want to contact Dr Z directly for tank options.
1 answers
I have a prs 2 channel h and the model number on it's reverb(that doesn't wor) is bs3ab2a1b the last three numbers match will this reverb tank work in my amp
Asked by Anonymous on October 4th, 2017.
Yes the 8AB2A1B is compatible with your BS3AB2A1B.
1 answers
I have a MOD reverb tank P-MOD-8ab2a1b in a a Blues JR iii. The reverb goes into oscillation and feedback quickly. When I only allow the center conductor of the red rca cable to touch the output of the jack it is subdued. But when the outer portion of the red rca cable touches, the signal is louder and the oscillation and feedback begins. Perhaps you know what the issue is and how to fix it?
Asked by Anonymous on September 6th, 2021.
September 7th, 2021
Staff Member
The input impedance of an 8AB2A1B tank is 10Ω while the stock tank for a Blues Jr. (8EB2C1B) has an input impedance of 800Ω. The issues you are experiencing are likely due to the wrong tank being used in that amp.
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Product Reviews
My reverb was not sounding very good so I bought this. I installed it and had screeching feedback when I turned it up past five. I guess that is just a problem you can have. Amplified Parts responded to my problem and said a return could be arranged. I removed the reverb from the cabinet. Fortunately the cables were long enough to connect it outside the cabinet and it sounds much, much better than my old reverb. It’s not an ideal situation but one I can live with.
I haven't used this tank yet but the last one I bought worked great so I am sure there will be no problems with this one. I will continue to purchase parts from AmplifiedParts.
I placed this order on the 4th of December and it arrived in New Zealand 2 weeks later - I'm very impressed with this delivery time. I'm using this reverb spring to build a stand-alone tube reverb unit inside a Fender 15G combo box - no photo's yet sorry. I recommend the parts and service from Amplified Parts and will be shopping again soon.