{"product_id":"sennheiser-hd-25-headphones","title":"Sennheiser HD 25 Professional On-Ear Monitoring Headphones","description":"\u003cp\u003eThe Sennheiser HD 25 has earned legendary status among DJs, broadcast engineers, and ENG professionals since its introduction in 1988 — and remains in continuous production today. Closed-back, on-ear design with exceptional passive noise isolation and high SPL handling (up to 120 dB) makes it the benchmark for professional monitoring in loud environments: on stage, in the DJ booth, in a broadcast truck, or out in the field.\u003c\/p\u003e\u003cp\u003eOriginally designed for sound engineers, the HD 25 became the definitive DJ headphone — chosen for its combination of isolation, compact design, and durability. Its shielding was so effective it was selected as the headphone of choice aboard British Airways' Concorde. The rotating left ear cup allows single-ear monitoring and cueing without removing the headphones. The split headband delivers strong clamping force and a secure fit during long sets. All key parts are field-replaceable — a critical advantage for touring and broadcast professionals.\u003c\/p\u003e\u003cp\u003eSound character is punchy and detailed with defined mids and highs, optimised for transient clarity — making it easy to detect attacks, match levels, and lock in mixes even in bass-heavy environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical specifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTransducer type: Dynamic | System: Closed-back | Wearing style: On-ear\u003c\/li\u003e\n\u003cli\u003eImpedance: 70 ohm\u003c\/li\u003e\n\u003cli\u003eFrequency range: 16Hz – 22,000Hz\u003c\/li\u003e\n\u003cli\u003eMax SPL: 120 dB (1kHz, 1Vrms)\u003c\/li\u003e\n\u003cli\u003eTotal harmonic distortion: \u0026lt;0.3% at 1kHz\u003c\/li\u003e\n\u003cli\u003eMax input level: 200mW\u003c\/li\u003e\n\u003cli\u003eWeight: 140g (without cable)\u003c\/li\u003e\n\u003cli\u003eCable: 1.5m detachable single-sided cable, replaceable\u003c\/li\u003e\n\u003cli\u003eConnector: 3.5mm jack plug | 6.3mm screw-on adapter included\u003c\/li\u003e\n\u003cli\u003eAssembled in Europe\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSennheiser part number 506909. Supplied with Sennheiser's 2-year warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpare parts available:\u003c\/strong\u003e Genuine HD 25 replacement parts including cables, ear cushions and headbands are available from \u003ca href=\"https:\/\/sennprospares.co.uk\/shop\/HD-25-Parts-Split-Headband-c121044251\" target=\"_blank\"\u003esennprospares.co.uk\u003c\/a\u003e — Showcomms' dedicated Sennheiser spare parts site.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuthorised Sennheiser Dealer:\u003c\/strong\u003e Showcomms Ltd is an authorised Sennheiser dealer with over 20 years' experience supplying professional audio and communications equipment to broadcast, events and production professionals.\u003c\/p\u003e","brand":"Sennheiser","offers":[{"title":"Default Title","offer_id":53321148399880,"sku":"506909","price":99.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/1599\/4376\/files\/Sennheiser-506909_HD25_headphones_with_straight_lead.jpg?v=1771161579","url":"https:\/\/showcomms.co.uk\/products\/sennheiser-hd-25-headphones","provider":"Showcomms Ltd","version":"1.0","type":"link"}