Reverb Tank - Mod® 4BB3C1D, Long Decay, 2-Spring
- Replaces: 4BB3C1D
- Solid, sturdy construction
- Type: Long (2 Spring) tank
- Decay: long decay
- Input: 150 Ω
- Output: 2,250 Ω
- Connectors: Input insulated/output grounded
- Locking: No lock
- Mounting: Vertical/connectors down
Compatible amps include Marshall™ DSL60, TSL60, DSL100, TSL100, DSL201, DSL401, TSL122.
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.
| 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. × 2.5 in. | ||
| Weight (Packaging) | 1.314 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 |
Product Reviews
Fast delivery. Great product. Great customer service.
Sounds Great, has a nice long tail, very lush sounding versus the old unit it replaced.
In this world of sound, getting the right tone is vital. Life is too short for BAD Tone!!! I purchased the reverb tank at amplified parts to replace the one in my Marshall JCM2000. It came to my studio in 2 days! Thanks to the prompt service from this company, my amp sounds amazing!!! I would highly recommend this company for all your amplifier parts.
Just put this tank in my TSL100 today. It sounds warmer, more lush and less boingy than the Accutronics reverb tank. Very good, easy and inexpensive mod for your amplifier. Very much worth it.
This can blows away the original unit in the TSL. Much more luscious sounding, and less "springy". Probably the best sub $20 mod you can make to the amp. It's just SO good!
I like it.
This 4BB3C1D was purchased as a replacement unit for a Marshall DSL401.
The tone is very good and no difference could be detected from the Accutronics model.
The unit size and mounting holes are identical to the original so replacement was a snap.
An Excellent Price - A Great Value - Highly Recommended !