Harp Reverb
Harp Reverb
Harp Reverb

Harp Reverb

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The Harp Reverb sounds not only like a genuine spring reverb tank, but better; thanks to the unique tone adjustable reverberation circuit. This pedal requires a power adapter that is sold separately. 

The Harp Reverb produces a very high quality spring reverb effect, it is engineered for harmonica players and is unique in that the reverberation is tone adjustable while leaving the original notes unchanged. You will add a great spring reverb effect to your music without loss of tone or adding feedback issues. What is a reverb effect? A reverb effect is a combination of the dry signal, which is the note that is being played and the effect which is an image of the same note repeating multiple times close enough together so that they sound merged as they fade away. Think of the repeating “boing” sound a spring makes when plucked with your finger. The sound of reverberation is prevalent in large empty halls and this is exactly what the Harp Reverb emulates. The reverb effect is great for harp because it adds a whole new dimension to the sound, giving it the depth that is lacking and making the harp sound like a much bigger instrument. There is however; a negative aspect to reverbs, they do not have a flat frequency response. Low frequencies are lost in the reverberation and when you combine this with the fact the harmonica is a tinny sounding instrument, the result although still positive is less than ideal. This problem is resolved in the Harp Reverb with the addition of an active tone control that is placed in the effect circuit. So now, you can adjust the tone of the reverberation to make it bassier, giving it more depth and fullness, while leaving your dry signal (the note you played) unchanged.

The AC adapter requirements are a 9V DC with a minimum 100mA output and a 2.1mm x 5.5mm connector with a negative center surrounded by a positive outside. The power adapter is sold separately.


  1. Vintage reverb effect
  2. VOLUME control
  3. BLEND control
  4. EFFECT TONE Control
  5. True bypass foot switch
  6. 9V DC input (barrel with a negative cent
  7. 10 year warranty on parts and labor
  8. If not satisfied, return within 60 days for a refund
Customer Reviews
4.6 Based on 8 Reviews
5 ★
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Filter Reviews:
Chad W.
United States

Love it!

I really like this pedal so far. I have changed my approach from using just the LW Delay to using the Harp Reverb plus a cleaner delay pedal to get the best of both worlds. Lots of fun playing with this pedal, and you can really twist the knobs and do no wrong to your tone, just about dialing in how much you want. Two thumbs from me!!

Jim B.
United States United States

Nice Job!

Easy online ordering, timely delivery, well built, great sound. No complaints about the unit whatsoever. In the future, I would like to see you build one that be able to switch between a Hall effect and a Fender spring reverb. I’d buy that too!

David B.
United States United States

Review of the Lone wolf harp reverb

Perfect, exactly what I expected. Works great.

Cameron L.
United States United States

This product was not nearly as effective as I would have hoped for. when plug into either one of my amps, there was literally no difference (on/off). Do not get me wrong, the product is very well made - it just was not what I was looking for (no fault of you).

Daniel O.
Canada Canada

Where is it?

I’d like to tell you but I haven’t received it or heard back from you. It was supposed to arrive May 25. Pls help. Thanks.

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