{"product_id":"sonifex-redbox-rbhd1-stereo-analogue-headphone-amplifier","title":"Sonifex RedBox RBHD1 Stereo Analogue Headphone Amplifier","description":"\u003cp\u003eSonifex RedBox RB-HD1 Stereo Analogue Headphone Amplifier\u003cbr\u003eModel: RB-HD1\u003c\/p\u003e\n\u003cp\u003eIn Good Condition, Full Working Order\u003cbr\u003eTested\u003c\/p\u003e\n\u003cp\u003eIncluded:\u003cbr\u003e1 x Sonifex RedBox RB-HD1 Stereo Analogue Headphone Amplifier\u003c\/p\u003e\n\u003cp\u003eDescription\u003cbr\u003eRB-HD1 Stereo Headphone Amplifier\u003c\/p\u003e\n\u003cp\u003eThe RB-HD1 is a 1U rack-mount stereo headphone amplifier for driving up to two pairs of professional stereo headphones from a single stereo or mono input. One headphone socket is on the front panel with one on the rear. The main stereo input uses electronically balanced XLR-3 connectors on the rear panel, which can be wired un-balanced. The output volume for the headphones can be controlled either by a pot situated on the front panel or a VCA signal supplied externally via the remote connector.\u003cbr\u003eA mono input can be mixed into the main headphone feed, for example, for mixing in talkback to the headphones. This has an input level control via a recessed adjustable potentiometer. The mono mix input can also be controlled remotely. A stereo\/mono switch is recessed on the rear panel to prevent accidental knocking. With mono selected, audio is sent to both left and right ear pieces. A LED power indicator on the front panel displays the power supply connection.\u003cbr\u003e\u003c\/p\u003e\n\u003ctable height=\"1061\" style=\"border-collapse: collapse; width: 465px; height: 1058px;\" width=\"128\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 232px;\" span=\"2\" width=\"64\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px; width: 96pt;\" width=\"128\" colspan=\"2\" height=\"20\"\u003eTechnical Specification For RB-HD1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" colspan=\"2\" height=\"20\"\u003eAudio Specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eInput impedance:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e\u0026gt;20kΩ balanced bridging (main)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eOutput Level:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003eDrives 150mW into 32Ω to 600Ω headphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eMono Mix Input Gain Range:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e22dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eMax Input Level:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e+28dBu\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eVolume Control:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e-80dB to +11dB gain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" colspan=\"2\" height=\"20\"\u003eConnections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 65.1719px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 65.1719px;\" height=\"20\"\u003eMain Stereo Inputs:\u003c\/td\u003e\n\u003ctd style=\"height: 65.1719px;\"\u003e2 x XLR 3 pin female (balanced, can be unbalanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 65.1719px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 65.1719px;\" height=\"20\"\u003eMono Mix Input:\u003c\/td\u003e\n\u003ctd style=\"height: 65.1719px;\"\u003e1 x XLR 3 pin female (balanced, can be unbalanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 65.1719px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 65.1719px;\" height=\"20\"\u003eOutputs:\u003c\/td\u003e\n\u003ctd style=\"height: 65.1719px;\"\u003e2 x ¼” (6.35mm) A-gauge 3-pole stereo jack sockets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eRemote Control:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e9-pin D-type socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 65.1719px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 65.1719px;\" height=\"20\"\u003eMains Input:\u003c\/td\u003e\n\u003ctd style=\"height: 65.1719px;\"\u003eFiltered IEC, switchable 110-120V, or 220-240V, fused, 9W max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eFuse Rating:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003eAnti-surge fuse 100mA 20 x 5mm (230VAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003eAnti-surge fuse 250mA 20 x 5mm (115VAC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" colspan=\"2\" height=\"20\"\u003eEquipment Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eRB-HD1:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003eStereo headphone amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" colspan=\"2\" height=\"20\"\u003ePhysical Specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eDimensions (Raw):\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e19” (W) x 4.3” (D) x 1.7” (H) (1U)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eDimensions (Boxed):\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e53cm (W) x 20.5cm (D) x 6cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003e21” (W) x 8” (D) x 2.4”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5781px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5781px;\" height=\"20\"\u003eWeight:\u003c\/td\u003e\n\u003ctd style=\"height: 33.5781px;\"\u003eNett: 1.35kg Gross: 2.0kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 33.5938px;\" height=\"20\"\u003e\n\u003ctd style=\"height: 33.5938px;\" height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 33.5938px;\"\u003eNett: 3lbs     Gross: 4.4lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Sonifex","offers":[{"title":"Default Title","offer_id":56953387647353,"sku":"R RB-HD1\/REF","price":68.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/5918\/4038\/files\/57_9975b010-5e48-400a-8df6-514484d60ee1.png?v=1775101667","url":"https:\/\/www.saveonkit.com\/products\/sonifex-redbox-rbhd1-stereo-analogue-headphone-amplifier","provider":"SaveOnKit","version":"1.0","type":"link"}