Pricing and availability

Average Price: $4,066

High-end/Boutique

$300

$801+

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Budget

Standard

High-end

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Description

Crafted with meticulous attention to detail, the Paul Reed Smith J-MOD 100 John Mayer Signature Amplifier is a testimony to world-class artistry and sonic versatility. Designed in collaboration with John Mayer, this 100-watt tube amp head seamlessly bridges the gap between live performance and studio recording. Its single-channel design, complemented by a switchable gain stage, allows you to traverse a vast tonal landscape—from pristine, glassy cleans to harmonically rich rock leads.

The J-MOD 100 features a thoughtfully engineered tone stack, with Treble, Mid, and Bass controls, alongside a Bright switch to add top-end shimmer—ideal for adjusting to different guitar pickups. The Presence control adds immediacy to your sound, making it a blank canvas ready to emphasize the nuances of your playing style. Built with robust components, including a premium Cinemag Texas 100 output transformer, this amp delivers a sound that is both articulate and powerful.

Engineered for durability, the J-MOD 100 includes five separate circuit boards to ensure minimal signal interference and maximum integrity. This layout, combined with high-end components, results in a rich, detailed sound with a refined harmonic richness. Maintenance is a breeze with accessible rear-panel fuse and bias points, allowing for easy adjustments without opening the amplifier. Whether you are a gigging musician or a studio enthusiast, the J-MOD 100 is designed to deliver an outstanding, expressive musical experience.

Key Features:

  • Designed in collaboration with John Mayer for ultimate performance and recording versatility
  • 100-watt, single-channel design with switchable gain stage
  • Series effects loop for seamless integration of external effects
  • Cinemag Texas 100 output transformer for rich, harmonic sound
  • Rear-panel access for easy maintenance and tube experimentation
  • Includes a 2-button footswitch (Effects Loop/Gain Boost)

Product specs

Brand PRS
Model J-MOD 100 John Mayer Signature 100-Watt Guitar Amp Head
Finish Stealth Black / Salt & Pepper
Year 2017 - 2020
Made In United States
Categories Guitar Heads
Electronics Tube
Impedance 16 ohms, 4 ohms, 8 ohms
Number of Channels 1 Channel
Number of Inputs 1 Input
Output Power (Watts) 100
Power Tube Type 6L6
Reverb None

FAQs

What type of tubes does the PRS J-MOD 100 use, and can they be swapped?

The PRS J-MOD 100 uses four 12AX7 tubes in the preamp and four 6L6 tubes in the power amp. It can also accommodate EL34, 6CA7, or KT77 tubes with re-biasing.

How does the PRS J-MOD 100 handle different speaker impedances?

The PRS J-MOD 100 supports 4, 8, and 16-ohm speaker impedances, offering flexibility for various cabinet configurations.

Does the PRS J-MOD 100 have a built-in effects loop?

Yes, the PRS J-MOD 100 features a built-in effects loop, allowing you to integrate external effects seamlessly into your signal chain.

What are the key tonal controls on the PRS J-MOD 100?

The PRS J-MOD 100 includes a 3-band EQ, volume, gain-stage output, presence, master, bright switch, and distortion switch for versatile tone shaping.

Is the PRS J-MOD 100 suitable for live performances?

With its 100-watt power output and robust build, the PRS J-MOD 100 is well-suited for live performances, providing ample volume and headroom for large venues.

Reidys Home Of Music

Reidys Home Of Music

FULL VIDEO: John Mayer on the PRS J-MOD 100 Amp

Video thumbnail for FULL VIDEO: John Mayer on the PRS J-MOD 100 Amp by Reidys Home Of Music

FULL VIDEO: John Mayer on the PRS J-MOD 100 Amp

Reidys Home Of Music

Reidys Home Of Music

Video thumbnail for John Mayer Signature Amps – Two Rock vs PRS J-MOD100 by Andertons Music Co

John Mayer Signature Amps – Two Rock vs PRS J-MOD100

Andertons Music Co

Andertons Music Co

Video thumbnail for The J-MOD 100 | PRS Guitars by PRS Guitars

The J-MOD 100 | PRS Guitars

PRS Guitars

PRS Guitars

Video thumbnail for NAMM Show 2017 John Mayer PRS press conference J-MOD 100 Amp by GitaristVideo

NAMM Show 2017 John Mayer PRS press conference J-MOD 100 Amp

GitaristVideo

GitaristVideo

Video thumbnail for PRS J-MOD 100 John Mayer Signature 100-watt Tube Head Demo by Sweetwater

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

Sweetwater

Sweetwater

Video thumbnail for Paul Reed Smith Demos the New John Mayer Signature J-MOD 100 Amp at NAMM 2017 by Reverb

Paul Reed Smith Demos the New John Mayer Signature J-MOD 100 Amp at NAMM 2017

Reverb

Reverb

Video thumbnail for PRS J-MOD 100 John Mayer Signature 100-watt Tube Head Playthrough by Sweetwater

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

Sweetwater

Sweetwater

Video thumbnail for Paul Reed Smith (PRS) J-MOD 100 John Mayer Amplifier by intheblues

Paul Reed Smith (PRS) J-MOD 100 John Mayer Amplifier

intheblues

intheblues

Video thumbnail for PRS J-MOD100 John Mayer Signature Amp Head | Review by Guitar Interactive Magazine

PRS J-MOD100 John Mayer Signature Amp Head | Review

Guitar Interactive Magazine

Guitar Interactive Magazine

Video thumbnail for John Mayer & Paul Reed Smith introducing the J-Mod 100 Amp. by Guitars Exchange

John Mayer & Paul Reed Smith introducing the J-Mod 100 Amp.

Guitars Exchange

Guitars Exchange

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about PRS J-MOD 100 John Mayer Signature Amplifier.

Features and functionality

  • The J-MOD 100 was designed in conjunction with its matching cabinet to meet John Mayer's personal sonic preferences, including touch, response, and punch.

    Source
  • The J-MOD 100 lacks built-in reverb, which some users find surprising given John Mayer’s influence and playing style.

    Source

Value and pricing

  • The J-MOD 100 head was priced at $5,899 in 2022, with prices reportedly increasing.

    Source
  • A notable comparison highlights that some users feel the J-MOD 100 doesn't sound significantly superior to the more affordable PRS Sonzera, despite its higher price.

    Source

Comparisons

  • The Celestion G12-65 Heritage Series speakers were integral to the J-MOD 2x12 cabinet, designed specifically to complement the J-MOD 100 head.

    Source
  • The PRS 4x10 cab with 10” Greenbacks is nearly identical to the JM 4x10, except for grille cloth color, making it a viable alternative.

    Source
  • The J-MOD 100 head can be paired with a Bassman or Bandmaster cab as a temporary solution for those awaiting the matching cab.

    Source
  • The PRS Sonzera emerges as a popular alternative for those seeking quality sound without the premium price tag associated with the J-MOD 100.

    Source

User experience

  • Local stores may push additional products like reverb pedals, assuming owners of high-end amps have more budget to spend.

    Source
  • Purchasing high-end gear like the J-MOD 100 can lead to unexpected social interactions and assumptions about the buyer’s musician status.

    Source
  • Enthusiasts express financial constraints as a major barrier, emphasizing that even dedicated John Mayer fans hesitate due to the amplifier's high cost.

    Source

Critic Reviews

PRS J-MOD 100 John Mayer Signature Amp Head

guitarinteractivemagazine.com

The PRS J-MOD 100 John Mayer Signature Amplifier is a tonal masterpiece delivering unmatched musical expressiveness and build quality. Designed with Mayer, Paul Reed Smith, and Doug Sewell, it offers an interactive tone experience and a distinctive, warm sound. However, it comes with a hefty price tag and a less conventional footswitch jack, which might deter some. If budget allows, it's a top-tier choice for serious musicians.

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Artist usage

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See how John Mayer uses PRS J-MOD 100 John Mayer Signature Amplifier

John Mayer

Guitarist

John Mayer Trio

...
Verified via YouTube

0:10 onwards we see Mayer using the amplifier. (the video is a demo and advertisement for the amp itself

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

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