Grado RA-1 Headphone Amp. One of the nicest sounding headphone amps around. New.
Designed for state-of-the-art performance and specifically to play Grados (Though it will certainly work with lots of other headphones), the 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. 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.