After years of relying on other equipment to drive Grado headphones, you can now listen and enjoy headphones through our new Grado Reference Headphone Amp, the RA1. Designed for state-of-the-art performance and specifically to play Grados, the new RA1 will allow you to hear your headphones like never before. This new amp is machined from a solid block of mahogany and measures 5" wide, 5 1/2" deep and 1 1/2" tall and weighs in at 12 oz. The RA1 is available in an AC version or can be powered by two 9-Volt batteries that will drive the amp for 40 to 50 hours of listening pleasure. And the sound? Just like all Grados: warm, smooth, full-bodied, non-fatiguing and rich. Hook it up to any line source (portable or in-home) and drive your Grado headphones to their full potential.

Also available the RA1-HG (High Gain). Now headphone enthusiasts can utilize the RA1's sonic qualities with a wide selection of headphones. The RA1-HG is designed to drive headphones with impedances of 100 ohms or more.

Comments on the Grado RA1

"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

"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

"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

"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

"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 (His Dudeliness) Hollander, Positive Feedback

"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

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