{"product_id":"rdl-ds-ha1a","title":"RDL DS-HA1A – Format-A Headphone Amplifier – Stainless Steel","description":"\u003ch2\u003eWhat is the RDL DS-HA1A?\u003c\/h2\u003e\u003cp\u003eThe RDL DS-HA1A is a Decora-style Format-A stereo headphone amplifier in stainless steel that receives audio and power over twisted-pair cable. It is suited to hotel guest room installations with bedside and restroom listening stations.\u003c\/p\u003e\u003ch2\u003eHow does it work?\u003c\/h2\u003e\u003cp\u003e\u003cimg src=\"https:\/\/rdlnet.com\/wp-content\/uploads\/2024\/01\/ds-ha1a.jpg\" alt=\"RDL DS-HA1A Format-A Headphone Amplifier\" style=\"max-width:100%;height:auto\" loading=\"lazy\"\u003e\u003c\/p\u003e\u003cp\u003eThe DS-HA1A receives stereo audio and 24 Vdc power through a rear-panel RJ45 jack fed from an RDL Format-A sender. Left and right audio on pairs B and C is amplified and fed to a front-panel 3.5 mm mini-jack, with a single-turn user volume control. Output is 25 mW per channel into 100 ohms with a frequency response of 10 Hz to 40 kHz (±1 dB). There are no illuminated indicators to distract users in dark rooms such as a hotel room. A second RJ45 jack loops through to additional receivers, and power is protected by an automatically resetting fuse.\u003c\/p\u003e\u003ch2\u003eWhat are the key features?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat-A twisted-pair input\u003c\/strong\u003e — Audio and power arrive on one standard twisted-pair cable from any RDL Format-A sender.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser volume control\u003c\/strong\u003e — A single-turn front-panel knob lets listeners set their own level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.5 mm headphone output\u003c\/strong\u003e — The standard mini-jack delivers 25 mW per channel into 100 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRJ45 loop-through\u003c\/strong\u003e — Either RJ45 jack can be the input while the other feeds another Format-A receiver.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo distracting indicators\u003c\/strong\u003e — The front panel has no lights, which suits dark guest rooms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel Decora design\u003c\/strong\u003e — An all-steel panel and rear enclosure mount in a wall or cabinet.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":68025764806892,"sku":"DS-HA1A","price":180.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/ds-ha1a.jpg?v=1793583650","url":"https:\/\/creationnetworks.net\/products\/rdl-ds-ha1a","provider":"Creation Networks","version":"1.0","type":"link"}