Grado Labs Reference RA-1 Headphone Amplifier - Battery Powered

Enjoy Grado headphones in the best way possible-through Grado's new RA-1 reference headphone amp. "With the Grado RA-1 handling the amplification, music was rendered truer, clearer, and more lifelike than I had imagined was possible," proclaims Willie Gluckstern in the November issue of Audio. Machined from a solid block of mahogany, the RA-1 uses a pair of audiophile op-amps with high-current output capability and wide bandwidth. Two nine volt batteries will drive the amp for a full 40 to 50 hours. Hook it up to any line source, portable or in the home, and luxuriate in the warm, smooth, full-bodied, rich, non-fatiguing sound.