Up for sale is a rare, discontinued JHS Pedals "Trans-Am" Modded Boss SD-1 Super Overdrive. The classic Boss SD-1 is already a legendary overdrive circuit, and JHS’s Trans-Am modification transforms it into a hot-rodded, high-clarity machine. It retains the touch-sensitive, mid-focused feel of the original while vastly improving headroom, bass response, and overall versatility. JHS Trans-Am Mod Specs & Upgrades:

  • Low-Noise Op-Amp: Replaces the stock op-amp with a quiet TL072 for cleaner operation.
  • Metal Film Caps: Upgraded circuit capacitors for a fuller, tighter low-end response and a more transparent tone.
  • Increased Gain: Significantly more available gain on tap compared to a stock SD-1.
  • MOSFET Clipping: Integrates a MOSFET transistor into the clipping section for a warm, tube-amp-like breakup and dynamic response.
  • Clipping Toggle/Stage: Features extra clipping options (including LED/FET stages) via the toggle switch for extra dirt and punch.
  • Bypass Fix: Upgraded switching/bypass circuit so the pedal doesn’t degrade or suck your tone when disengaged.

Very little wear with only a few small paint chips. This pedal sounds excellent in any setting!

Reverb Buyer Protection

Reverb has your back if your item is lost, damaged, or doesn't match its description. Simply report any issues within 7 days and we'll help you get a full refund.Learn more about Reverb Buyer Protection.

Listed18 days ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Boss SD-1 Super Overdrive with "Trans-Am" Mod
Finish
  • Yellow
Categories
Year
  • 2010
Made In
  • United States
Pedal Format
  • Standard

Product safety information may be available here.

About the seller

Asylum Audio

Lehigh Acres, FL, United States
Joined Reverb:2020

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Promoted similar listings













Product reviews

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Oops, looks like you forgot something. Please check the fields highlighted in red.