The Grado RA-1 High-Gain Headphone Amp for Hard to Drive Headphones!  

Grado is proud to offer a high gain version of the RA-1. Designed specifically to drive headphones with impedances over 100 ohms, the RA-1 HG is optimally suited for powering headphones such as Sennheisers & AKGs.

The RA-1 High Gain is available only as an AC powered version and is cosmetically identical to the widely embraced RA-1.

NOTE: Due to our dealer agreement with Grado Labs, this product is not available for sale outside of the United States.  For information on purchasing Grado products outside of the US, please contact Grado Labs directly.  www.gradolabs.com

HWD: 1.5"x5"x5.5"
Weight: 12Oz
Inputs: RCA (Pr)
Outputs: 1/4" Headphone Jack
Input Impedance: 100kΩ
Output Impedance: 32Ω
Output Power: 300mW

"Listening to my RS1's through the Grado RA1 headphone amp is like listening to a live performance, it puts you right there." — Mark Rivera, Saxophonist with the Billy Joel Band

"This is such a nice job of product engineering by John Grado, I think it earns a nomination for "Dudely Product of the Year Award."" — Charles Hollander, Positive Feedback

"With the Grado Reference RA1 handling the amplification, music was rendered truer, clearer, and more life-like than I had ever imagined was possible." — Willie Gluckstern, Audio Magazine

"When paired with the high-quality RS1 headphones, the RA1 delivers music that is clearer and more life-like than most speakers." — Jason Alexander, Satellite Direct

"The RA1 offers excellent value for money, and does a fine job powering phones from Sennheiser, Shure and Ultimate Ears. It does especially well with Grado 'phones and does not embarrass itself next to state of the art components." — Phil Gold, Inner Ear Magazine

"With a tube-like rendering of timbre and a sweet, relaxed sound, the Grado RA-1 makes extended headphone listening a joy. Although battery-driven, the RA-1 is more at home in your equipment rack or on your desk than out on the road. A beautiful wooden case finishes off this gem." — Reviewed By Robert Harley, Absolute Sound

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