Raal SR-1a units are BRAND NEW IN BOX, images were taken of an open box unit we have in-store. The SR-1a version is favored by some critics for its stunning transparency and dimesionality. The original version of the revolutionary true ribbon headphones are a tour de force of three dimensional imaging for the headphone enthusiast. The SR-1a uses transformer interface that connects to an amplifier’s output and will work with virtually any high quality amplifier.
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