Two-Rock John Mayer Prototype #1 - PRICE DROP -

Two Rock

Product Code: AP1698

$ 45,000.00 $ 40,000.00

For sale we have the first John Mayer Two-Rock Signature prototype. It was the first amplifier made by Two-Rock specifically for John Mayer in an effort to create an amp specifically to his liking and to his sound. There are a lot of fake prototype John Mayer Signature amps out there, but this one is the real deal. Road cases and all. 

On the back of the amp, it says "01 Mayer Tour Proto" to show that it is the first prototype built for John before his signature amps were made. It also had the letters "JM" and "PT 01" stamped into the amp for "John Mayer" and "Prototype 01." John also used the white sticky device on the back to hold an extra fuse, in case the one inside the amp blew. 

The front of the amp shows that Two-Rock built the original prototypes in Custom Reverb Signature chassis. On the front of the amp, you can see the red marks John put to show where he liked his settings for this specific amp. There were obvious modifications made to the original Custom Reverb Amp for this amp, having some of the knobs no present, or replacing some of the words with stickered words. 

The amp itself is in amazing condition, it hasn't been modified since it left John's possession. It comes with the road cases for both the amp head and the cabinet, featuring "John Mayer Musical Sound." 

The cabinet has a great story of it's own. You can see that John previously used it in Youtube clips with the John Mayer Trio, and he used it with his Dumble ODS rather than with this amp. 

The amp and cabinet are in perfect working condition.  This amp will allow you to play an amp that John actually used, not just to tweak and see how he liked the sound, but one he actually used in performances. 


  • Watts - 100 Watts
  • Tubes - 6L6 Power Tubes

Returns Policy

All products have a 48 hour approval period. You must notify us immediately after the 48 hour has expired and the item must be returned to Carter Vintage Guitars within 7 days after notifying the store. Carter Vintage Guitars is not responsible for any return shipping costs. Items returned outside of the approval period window will be subject to a restocking fee (up to 15%). Items must be returned in the same condition as they left the store. New items must be returned with any and all factory packaging that was included with the product.

Refunds will be applied via the same method of payment used at the time of purchase. Returns can take 5 to 10 business to show back up onto your bank statement.

Please contact us with any and all questions before making a purchase. We do not want you to have to return anything and are happy to provide as many details as possible for any and all products we carry in our store.


Carter Vintage Guitars can ship almost anywhere! Most orders in the Continental United States ship via USPS or UPS. Instruments ship via UPS or FedEx. Our expert shippings have years of experience packing and shipping guitars all over the world you can rest assured that your package will arrive quickly with the contents in perfect condition. Customers must pay the full shipping amount, we always try to give customers the best shipping rate possible but packages ship via dimensional weight.

All instruments ship fully insured for the full purchase amount.

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