{"product_id":"stax-srd-7-energizer-pwb-electrostatic-headphones","title":"Stax SRD-7 Energizer \/ PWB Electrostatic Headphones","description":"\u003cp\u003eThis listing comprises a vintage Stax SRD-7 speaker-level energiser\/adaptor paired with PWB (Peter Walker Brown) electrostatic headphones — a rare collector's combination. Supplied in original packaging (no packaging for the headphones), with manual. Please note: there is a little bit of wear on the headphones. The SRD-7 draws power from a speaker amplifier's output terminals, converting speaker-level signal to the high voltage required to drive electrostatic headphones. Headfonia noted the SRD-7 'runs great out of any vintage stereo receiver' and praised the transparency and resolution that Stax electrostatics deliver. The SRD-7 was produced from the early 1970s through to the mid-1990s and remains a popular affordable gateway into Stax electrostatic listening.\u003c\/p\u003e\n\u003cp\u003eAs always, our usual warranty applies to give you peace of mind.\u003c\/p\u003e","brand":"2ndhandhifi","offers":[{"title":"Default Title","offer_id":52474563887445,"sku":"952691","price":150.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/1094\/5365\/files\/IMG_2238.jpg?v=1770214316","url":"https:\/\/2ndhandhifi.co.uk\/products\/stax-srd-7-energizer-pwb-electrostatic-headphones","provider":"2ndhandhifi.co.uk","version":"1.0","type":"link"}