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JM Signature

Our JM Signature amp resembles the famous John Mayer Signature amp. We believe your search for the ultimate tone will end once you play this amp. It produces the most amazing clean tones.

Our AmpGuy JM Signature amp resembles the famous John Mayer Signature amp. We believe your search for the ultimate tone will end once you play this amp. It produces the most amazing clean tones. This amplifier is known for its lush/complex clean tone that compresses very sweetly. The reverb circuit used is known for being the best in the industry. Comes in 20, 50 and 100 watts. Completely hand wired and all tube amp. The finest components were used in the making of this amp. Transformers are all made in the USA and Canada.

It can also produce amazing overdriven tones once you engage the Boost switch! It takes pedals amazingly well. This amp sounds great with single coils and humbuckers!

Additional information

Weight30 lbs
100 Watt

100 Watt

50 Watt

50 Watt

20 Watt

20 Watt

1 review for JM Signature

  1. Jeff M – Sterling Heights, Michigan USA

    Wow! From the start of the amp build process, Guy has been over the top friendly and helpful! Communication is key I believe when it comes to custom builds and Guy certainly did not lack that! Emails with pictures included made the process exciting! When it came to the amp he had plenty of options available for customization. When the amp arrived it was just as beautiful as the pictures I received along the way! Better yet the amp just sounds AMAZING! The clean tone is phenomenal and it takes pedals well! Even at low bedroom volumes this amp does not disappoint! Totally nailed the tone I was searching for without having to break the bank for other well known boutique amps that are on the market (I’ve owned some)! Guy’s attention to detail and love for building amps is what makes these amplifiers special! To this day I still talk with Guy (he’s a great person!) Do yourself a favor and place an order with him!

    – JM Signature 50 watt combo.

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