STAX Headphones SRS-2050A Driver Unit: SRM-252A Ear Speakers: SR-202 Fully functional. No original box or manual. Generally in good condition as I covered them with cloth when not in use to minimize dust, but the ear pads show signs of wear as shown in the photos. The amplifier's insulators are supported by three points, but they are stickers, so you can remove them and use your preferred insulators. Thank you.