Here at Ampguy we are a boutique builder of hand wired tube guitar amps and cabinets . We build D*mble style amps.  All our amps are hand wired with the finest components and are crafted after his legendary circuits. We are among the most affordable builder of these amps.The tone from these amps rivals that from some of the finest amps. We also build and tolex head, combo and speaker cabinets. Please call for pricing . Weather your playing at home or on a stage we will make you sound better than ever before! We are located in downtown Toronto. We now ship worldwide!

Our amps are built  to last a lifetime with CAN/USA and EU components. 

 Email  or call 416 893 6396 to discuss shipping and options available. 

New D*mble Overdrive Special Combo is here ! 

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JM Signature.This amp resembles the famous John Mayer Signature amp. This amp has 5 preamp tubes like the original. It produces the most amazing tones . It's known for being the greatest amp ever for the type of music it's used for. Comes in 20, 50 watt and 100 watts. Amp accepts 6L6/6v6  tubes. 50 watt version shown here and in video below. Completely hand wired and all tube amp. The finest components were used in the making of this amp. Transformers are all made in USA and Canada.

This amplifier is known for a rounder tone that compresses very sweetly. It can also produce a nice tight sound when dialed in properly for one of the nicest overdriven tones you have ever heard! It also takes pedals amazing well. This amp sounds amazing with single coils and humbuckers, many amps do not handle both types of pickups well but this amp will .

Recent Customers: 

Paige Armstrong, Professional Guitarist, Toronto Ontario

Can't get enough of the tones coming from my JM Signature amp. AmpGuy nailed it!

Amazing tones ! Amp also takes pedals well and also sounds amazing on its own!

100 watt JM Amp

Grayson, Saskatoon, Saskatchewan

"The AmpGuy JM amp is responsive, incredibly sweet and plenty loud. It nails JM’s tone and produces the warmest, most honest clean tones I’ve ever heard. Guy is professional, friendly and very knowledgeable. He will make sure you are satisfied with your purchase. I’m very happy with my JM amp and have recommended Guy’s products to friends.”

20 watt JM Amp 

Adam, Hamilton Ontario.

The amp seems to be able to adapt to whatever I throw at it whether I’m just using the amp with no effects or using any combination of pedals, it just works.  Lastly, I bought this amp for the powerful sweet clean tones which are stunning, but I keep finding myself cranking the amp in to overdrive as it is the tightest most percussive overdrive I have heard.

Read more Reviews!

Products currently available 
  •  JM Signature Amp. Resembles John Mayer Signature amp
  •  JM Signature Amp available as 1 x 12 Combo w/Celestion G1265  
  • Dumble style Overdrive Special amp
  • 100 watt attenuator (pic above in gallery)
  • $300 deposit to start builds. 
  •    Check out our Youtube Channel Here
  • Please email or
      call 416 893 6396 regarding prices for amps listed above.

New chassis and cabinet!


Dumble STYLE

Overdrive Special Reverb 50 watt 2 channel tube Amp. Features 2x 6L6 tubes. This Overdrive Special Reverb amp bears close resemblance to  the 80s - 90s Dumble #124 amp with our own added tube reverb . This model has been refereed to as a high-plate non-HRM model with the Skyline tone stack. This design is known for its fat and harmonically rich clean tone, and a complex, smooth overdrive tone with a nice mid range push. Reverb controls are in the back.
All these amps are hand wired and circuit board free. I use point to point turret board in all my builds. I use the finest capacitors and transformers to produce amazing tone that sounds great from bedroom level volume to blazing stage sound levels! This amp has a user adjustable bias control. This amp will let you run 6L6 or EL34 power tubes!


Dumble STYLE



You can reach out to me to listen to and discuss purchasing one of these hand-built clones at 416-893-6396. Ask for Guy or email at 
AmpGuy is a division of Gaetano Enterprise Inc.