GRADO RA-1 RA 1 RA1 HEADPHONE AMPLIFIER A/C POWERED The A/C powered Grado Reference RA1 Headphone Amplifier is designed for state-of-the-art performance specifically to play Grados. It will allow you to hear your Grado headphones like never before. Just like all Grados, the RA1 sounds warm, smooth, full-bodied, rich and non-fatiguing. Features - Input voltage: 100-230 VAC - Color: Mahogany - Dimensions: 1.5"h x 5"w x 5.5"d - Weight: 12 oz. - Input: RCA (Pr) - Output: 1/4" headphone jack - Input impedance: 100k ohms - Output impedance: 32 ohms - Output power: 300mW - Warranty: One-year Awards The Absolute Sound 2005, 2006, 2007 & 2008 Editor's Choice Award Winner Reviews "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 RA1 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." - Robert Harley, The Absolute Sound "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 "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 To read Hollander's full review, click here
