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Open and Expressive

No compromise amp designed with John Mayer.

The J-MOD 100 amplifier was intimately designed by Paul Reed Smith, Doug Sewell, and John Mayer. With a thoughtful control platform, impeccable build, and high-quality components, the J-MOD 100 is a fully-realized, high-end piece of audio gear for players who want the purest and most expressive musical experience.

Thoughtful control platform and feature selection.

The J-MOD 100 amplifier is a single channel amp featuring a switchable gain stage and effects loop. The amp’s tone stack features a beautiful, spread out tone that is at once huge and clear. When the gain stage is kicked in, the amp gets rich in harmonics and delivers a bit more bite. The versatility provided by this setup allows the J-MOD 100 to deliver a huge variety of sounds whether using singlecoils or humbuckers.

Additional tone-sculpting features include a bright switch, which adds more high-end to your tone, and a presence control that boosts the high-end in the power amp section of the amplifier, giving you a livelier, more complex tone. There is no reverb built into the J-MOD 100, but an effects loop was requested by Mayer for his reverb tanks. The amp’s effects loop (and gain boost) is controlled by the footswitch, so players can use any reverb or effects unit desired with this amp.

Elegant and robust construction.

The J-MOD 100 amp features five separate boards, all with over-sized traces for tonal integrity. Each board is dedicated to a particular part of the circuit: preamp section, power section, front panel controls, bias jacks, and the effects loop. Not only is this an elegant way to build with fewer long wires extending across a larger board, it is also a more robust way to build as there is not a single, large board that needs to flex during transport. The amp is hand-wired at PRS in Maryland, USA with a truly artistic level of craftsmanship. The J-MOD 100 also features a “laydown-style” power transformer for build integrity.

High-quality components.

The J-MOD 100 pairs hand-crafted construction with top-of-the-line components, including a Cinemag output transformer and high-end capacitors in the preamp section. The result is authentic vintage tone with rich harmonics that sit at the player’s fingertips for a thoroughly expressive and transparent musical experience.

Built with serviceability in mind.

Mains fuse, B+ fuse, and bias adjustment jacks are accessible on the back panel of the amp, so changes and adjustments can be made without needing to open up the amplifier. In addition, the amp will accept many different power tubes types, including EL34, 6CA7, KT77 (with re-bias).

PRS J-MOD 100 John Mayer Amp

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After more than a year of close collaboration, PRS Guitars and John Mayer are proud to announce the addition of the J-MOD 100 amplifier to PRS’s amplifier lineup. The J-MOD 100 amplifier was intimately designed by Paul Reed Smith, Doug Sewell, and John Mayer to not only handle Mayer’s live work with Dead & Company, but to also move seamlessly into recording and performing his solo material. With a thoughtful control platform, impeccable build, and high-quality components, the J-MOD 100 is a fully-realized, high-end piece of audio gear for players who want the purest and most expressive musical experience.

“I think amplifiers are such interesting, complex animals. The J-MOD 100 is the result of a lot of searching…what is my sound? What are the elements of all these amps I own that should be chosen to go together in one amp and have this really distinct voice? What we ended up with is a really open and expressive amplifier that I feel is a real evolution and a step forward in guitar amps.” – John Mayer

The J-MOD 100 (100 watt) amplifier is a single channel amp featuring a switchable gain stage and effects loop. The amp’s tone stack features a beautiful, spread out tone that is at once huge and clear. When the gain stage is kicked in, the amp gets rich in harmonics and delivers a bit more bite. The versatility provide by this setup allows the J-MOD 100 to deliver a huge variety of sounds whether using singlecoils or humbuckers.

“Working with John Mayer has been a rewarding experience. His knowledge and no compromise attitude have led us to innovate and produce a beautiful sounding amp that delivers on versatility, construction, and professional tone” said Paul Reed Smith, of PRS Guitars. “It’s John’s and PRS’s goal that the products we collaborate on satisfy musicians who are looking for the best new gear from a sound, technical and aesthetic standpoint, whether their use is on stage, in the studio, practice room or in the comforts of their home.”

Additional tone-sculpting features on the J-MOD 100 include volume, tone, treble, mid, bass, and a bright switch, which adds more high-end, and a presence control that boosts the high-end in the power amp section of the amplifier, providing a livelier, more complex tone. There is no reverb built into the J-MOD 100, but an effects loop was requested by Mayer for his reverb tanks. The amp’s effects loop (and gain boost) is controlled by the footswitch, so players can use any reverb or effects unit desired with this amp. Easy adjustment of Gain Stage Volume and Output, plus Presence and Master controls provide a pallet of endless versatility.

The J-MOD 100 amp features four 6L6 power tubes and four 12AX7/ECC83S preamp tubes plus five separate boards, all with over-sized traces for tonal integrity. Each board is dedicated to a particular part of the circuit: preamp section, power section, front panel controls, bias jacks, and the effects loop. Not only is this an elegant way to build with fewer long wires extending across a larger board, it is also a more robust way to build as there is not a single, large board that needs to flex during transport. The amp is hand-wired at PRS in Maryland, USA with a truly artistic level of craftsmanship. The J-MOD 100 also features a “laydown-style” power transformer for build integrity.

The J-MOD 100 is the second PRS/Mayer product collaboration, the first being the Limited Edition Private Stock Super Eagle electric guitar, which debuted in the spring of 2016 and embodies the PRS Private Stock culture of meticulous craftsmanship as well as Mayer’s keen eye for playability, tone and detail.

The J-MOD amplifier is available through select PRS Dealers and Distributors and can been seen for the first time at the 2017 Winter NAMM show in Anaheim, California from January 19-22 at PRS Guitars, Room 210A.

 

SPECIFICATIONS

Available Configurations Head
ELECTRONICS
Wattage (Nominal) 100
FRONT PANEL CONTROLS
Preamp Section Volume, Treble, Middle, Bass, Bright Switch
Gain Stage Volume, Output, Bypass Switch
Output Section Presence, Master, Effects Loop Bypass Switch
BACK PANEL FEATURES
Inlet Fused Power Inlet (IEC)
Effects Loop Loop Return, Return Level, Send Level, Loop Send
Bias Fixed Bias, Adjustable (bias jacks accessible from back panel)
Extension Speaker Jacks 3: 2, Parallel with 4 and 8 Ohm selector switch & 1, 16 Ohm jack
Ohms 4, 8, 16 Ohms
Channels Single Channel with Switchable Gain Stage and Effects Loop
Output Transformer Cinemag Texas 100
HARDWARE
Cabinet Material / Construction Pine, Fingerjoint
Covering Stealth
Grill Cloth Untinted Salt & Pepper
Piping Gold
TUBES
Power Tubes 4 x 6L6
Preamp Tubes 4 x 12AX7/ECC83S
PREAMP TUBE POSITIONS & FUNCTIONS
V1 12AX7, Input Gain Stage
V2 12AX7, Overdrive Gain Stage
V3 12AX7, Effects Loop
V4 12AX7, Phase Inverter
MEASUREMENTS
Amp Width 26"
Amp Depth 10"
Amp Height 10"
Amp Weight 39.8 lbs

 

 

 

 

ACCESSORIES
Included Accessories 2-Button Footswitch (Gain Boost On/Off, Effects Loop On/Off)