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PRS J-MOD 100 John Mayer Signature 100-watt Tube Head , this item is no longer available, below are some similar products you may be interested in.

PRS J-MOD 100 John Mayer Signature 100-watt Tube Head

100W Tube Guitar Amplifier Head, with Switchable Gain Stage and Series Effects Loop
Item ID: JMOD100H
Sorry, the PRS J-MOD 100 John Mayer Signature 100-watt Tube Head is no longer available. We've left this page up for reference only.
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PRS J-MOD 100 John Mayer Signature 100-watt Tube Head
PRS J-MOD 100 John Mayer Signature 100-watt Tube Head

World-class Craftsmanship Creates Expansive Tone

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Designed with John Mayer to be his go-to guitar amplifier for performance and recording, the PRS J-MOD 100 John Mayer Signature tube amp delivers an amazing tonal range. This 100-watt single-channel amp features a switchable gain stage for higher-gain tones. With four 12AX7 preamp tubes, four 6L6 power tubes, and a premium Cinemag Texas 100 transformer, you can cover everything from glassy cleans to rock leads with articulation and detail. Factor in a total of three speaker outputs and a series effects loop, and the PRS J-MOD 100 John Mayer Signature amp is ready for any application.

Wide tonal range

PRS designed the J-MOD 100's tone stack for wide, spread-out tone that is huge and clear. In addition to Treble, Mid, and Bass controls, a Bright switch is available to add top-end sparkle (or compensate for dark humbucking pickups). A Presence control adds in-your-face immediacy to your sound. Ultimately, John Mayer wanted this amp to be a blank sonic canvas, ready to highlight all the nuances and subtleties of his playing style. Spend some time with the J-MOD 100, and you'll find a world of expressive possibilities — and no matter how you end up shaping your tone, it's sure to retain incredible articulation and punch.

World-class craftsmanship inside and out

Inside the J-MOD 100 John Mayer Signature amp are five separate circuit boards, as opposed to one single board that can flex during transport. The traces on the boards are oversized for maximum signal integrity. And top-shelf components are used throughout, including a Cinemag Texas 100 output transformer and high-end capacitors in the preamp section. Guitarists at Sweetwater agree the result is a rich, highly shapable sound with incredible detail and harmonic richness.

Designed with long-term use in mind

Guitarists like John Mayer need to be able to maintain their gear without unnecessary headaches. The PRS J-MOD 100 John Mayer Signature amp makes it easy to access the mains fuse, B+ fuse, and bias points directly from the back panel of the amplifier. You'll be able to make necessary adjustments without opening up the entire amplifier. And if you want to experiment with the tone of different tubes, you're in luck — the J-MOD 100 can accept many different tube types including EL34, 6CA7, and KT77 (requires re-biasing).

PRS J-MOD 100 John Mayer Signature Tube Amplifier Head Features:

  • Designed with John Mayer to be his go-to amp for performance and recording
  • 100-watt, single-channel design with switchable gain stage for lead tones
  • Series effects loop for incorporating reverb and other effects
  • Cinemag Texas 100 output transformer for harmonically rich output
  • Easy to maintain thanks to rear-panel access points for fuses and biasing
  • 2-button footswitch included (Effects Loop/Gain Boost)

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.