5 out of 5
Mod Electronics P-RMOD-4BB3C1D Reverb Tank - MOD®, 4BB3C1D, Long Decay, 2-Spring
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Product Description
Manufacturer Part Number: P-RMOD-4BB3C1D
Compatible amps include Marshall™ DSL60, TSL60, DSL100, TSL100, DSL201, DSL401, TSL122.
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.
Measurements and Specs
Files
Compatible amps include Marshall™ DSL60, TSL60, DSL100, TSL100, DSL201, DSL401, TSL122.
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.
Measurements and Specs
| Connectors | input insulated, output grounded | |
| Decay Time | long (2.75 to 4.0 s) | |
| Grommet Hole Diameter | 0.2 in. | |
| Input Impedance | 150 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 | vertical, connectors down | |
| Output Impedance (Zout) | 2.25 kΩ | |
| Springs | 2 | |
| Thickness | 0.04 in. |
| Packaging Dimensions | 17 in. × 5 in. × 3 in. | |
| Weight (Packaging) | 1.75 lbs. |
Files
| 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 |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Note
This product is not eligible for coupon code discount, for we've been offering the best price in the market.
Need more information?
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Our staff are available to answer any questions you may have about this item
Customer Reviews
By JH
Date: September 23, 2023
Easy to install and it sounds great. More reverb effect than stock and it's got a great vintage tone. A upgrade that really makes the tone a lot better and it's easier to install than the speaker. Took maybe 5 mins.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Rudy Membiela
Date: July 29, 2023
My 1995 original issue Fender Blues Jr reverb tank crapped out almost as soon as I got it. I repaired it 3 times before I gave up on fixing it again 28 years later.I was just going to get another replacement Accutronics (Original reverb tank included in the amp) until I started reading there rave reviews about the MOD tank. I pulled the trigger on the MOD and installed it s soon as I got it. My Blues Jr is like a new amp now! This is one of the best reverb tanks I've played through and HIGHLY recommend it as a replacement even if your reverb tank is working fine. It's one of the most musical reverbs built today!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By CG
Date: July 13, 2023
Well worth the money. Gets you into that lush surf territory cranked up. Big improvement over the stock reverb. 30 minute install without any mods.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By RayNC
Date: June 21, 2023
Changed out the 2-spring tank in my Stage Right SB12 50 watt amp and it made a big difference. Just what I was hoping for.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Nhendrix
Date: May 19, 2023
While I love the long two-spring reverb Fender puts in their blackface reissues, I find that it isn't suited for every application. This short 3-spring tank shortens the delay time and gives me more usable settings across the dial. It definitely makes it less suitable for bigger, spacey tones like the stock tank. They are both great tones, so I encourage you to experiment.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By David Konopka
Date: April 27, 2023
Perfect replacement tank for Stage Rite 50 Watt combo. Made a huge difference.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]