Carl's Custom Amps Classic Tube Reverb Unit The best out there!

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Carl's Custom Amps
Las Cruces, NM, United States
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About This Listing

Carl's Custom Amps

Classic Reverb Unit

Carl's Custom Amps is in high demand! Please allow 8 to 14 weeks to be built, tested and shipped.   


Based on the famous Fender Reverb Unit of the 60's the Classic Reverb Unit is the new benchmark for great reverb tone. Whether you need cavernous space or subtle ambiance this unit will deliver. Mix, Dwell, and Tone controls give the play many tonal options. The foot switch allows for tube buffered bypass so there is no signal loss when the unit is off.  The sound is warm and deep as only a tube driven spring reverb can be. Like all of our amps this unit has very low floor noise lending itself well to critical recording.

The Classic Tube Reverb uses high quality parts, superior construction, and will exceed any reissue, clone, or kit in terms of sound and serviceability.  The transformers are of far better quality than vintage units, kits, and clones. A lot of time has gone into making the Classic Tube Reverb the very best unit out there today. So throw away those lack luster pedals and get real tube reverb.  

  • Meticulously hand wired

  • Uses a NOS 6K6, JJ's 12AX7 and JJ's 12AT7

  • Tremolo/Reverb Units uses four 12AX7s and one 12AT7

  • Galactic grounding minimizes hum and maximizes tone and detail

  • DC elevated heaters and a special resistor selection minimize noise

  • Custom Wound Transformer Set

  • Mix, Dwell, and Tone Control

  • Foot switch allows bypass

  • Long Life High Quality Electrolytic Capacitors

  • Malory 150 and Panasoinic Tone Caps

  • Switchcraft and Neutrik Jacks

  • MOD Reverb Tank

  • Tweed, Blonde, Brown or Blackface Cosmetics are available

  • Handle style and jewel lamp color will vary slightly from unit to unit. 

Customer Comments:

“Howdy, Carl! Your reverb unit is making EXACTLY the famous surf sound i wished for. With all the controls at 2 o’clock it makes that Dick Dale splash that none of my vintage fenders can make. The thing that really surprises me is that it makes so many other famous sounds- I have built this circuit twice before, (I’m an EET) and it sounded good, but no anything like yours. I noticed the layout change and torroid pt, and the full wave rec, Man! You really EXCEED your own claim of “handwired excellence”. All the knobs on the reverb unit at 9 o’colck into your Blonde 40 watt with everything at 1 o’clock is a sound I’ve never really heard, but i just can’t quit listening to it and smiling. Hats off to you! Thanks again!!! Love it!”


“I got the reverb unit last week just before hitting the road so I've only used it with one amp but it's perfect! Fantastic range of tones and dead quiet. I can tell you build to the highest standard possible before putting your name on anything, thanks for that! Getting harder to find that as a the rule rather than the exception.

My Marshall has never sounded better. Can't wait to now use it in front of the other 9 amps...

Oh, I also received the padded cover, fits great.

Thanks so much Carl!”


“Hey Carl just wanted to say that the reverb unit you built for me is totally awesome man sounds fantastic and is relatively lightweight just wanted to say thanks and I will be purchasing from you again in the future appreciate it Carl! Have a great day man”

Gregory L.

“Hi Carl-Happy to report my Carl’s reverb/tremolo unit arrived safe and sound today. Both effects sound great, and the the build quality is most impressive. FYI, I’m glad I elected to keep the original grill cloth. Again, thanks for being thoughtful and thorough, and checking with me re the detail questions. The gold sparkle cloth goes well with the smooth brown telex, and is right in step with many circa 1964 reverb units I’ve seen. Hope you do well. Your obvious commitment to quality is refreshing these days. All the best!”

Tom W.

“Hey Carl,

Got to play with the Reverb Unit yesterday. Really digging it! I love how the cosmetics turned out man! There's definitely a nice depth to the reverb and a good drippy bounce when the dwell is turned up.

I've often heard that outboard tanks have a volume drop, but I don't notice any with yours, actually seems like a slight presence boost when engaged, which is awesome!”

—-Mick B—


I've had some time to play through the reverb unit you built for me. It's way better than I remember my old Fender and Gibson stand alone units way back in the mid 1960s. To say I am pleased would be an understatement.


Bill P

"Hey Carl. I picked up the reverb unit Monday. Arrived in good health, looks great, sounds great. Build quality is clearly excellent. Thank you for your good work and prompt service on this order. I'm still getting to know the unit, discovering settings, and getting a feel for how it reacts to the front end of my amp (currently using it with a Mesa LSC and it sounds a few other Fender-type amps (including a Tungsten Cortez, i.e. 5e3!) I'll be trying it on as well). Some gorgeous tones...huge range with the reverb, and the tremolo sounds great too.  So pleased to find a unit with post-reverb bias vary tremolo. And its quiet as a mouse."



Just wanted to thank you for the awesome reverb tank. It’s giving me that warm tone that I was looking for. Excellent workmanship. I appreciate the great packaging job also. Feel like a kid at x-mas time.


Eric Rehil

Flint, MI"

Reviews of this Shop


Product Specs

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.learn more
Made In
  • United States

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