{"product_id":"sonifex-cm-hpx1-headphone-volume-control","title":"Sonifex CM-HPX1 | Headphone Volume Control","description":"\u003cp\u003eThis product allows the connection of a stereo balanced line input via 2 x female XLRs and creates a headphone output, with level control. It is transformer balanced, and can be used with any headphones above 150Ω impedance. The transformer ratio of 2:1 ensures that any headphone load presented at the output is reflected through to the input at a 1:4 ratio (hence a 150Ω set of headphones looks like 600Ω at the input, a suitable load for most good quality line output stages). The stereo headphone output uses a stereo 6.35mm jack socket with the following connections: Pin Type \u0026amp; Connection: Tip: Left. Ring: Right. Screen: Ground. The headphone level will be at half the level of the incoming signal with the volume control at 100%. The volume level control sets the output level of the stereo headphone socket and runs logarithmically from zero to the maximum output level. The stereo analogue input is on two female 3 pin XLR connectors with the following pin assignments: Pin 1: 0V Common. Pin 2: Phase. Pin 3: Non Phase.\u003c\/p\u003e\u003ch3\u003eProduct Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStereo line level XLR inputs.\u003c\/li\u003e\n\u003cli\u003eHeadphone output with level control.\u003c\/li\u003e\n\u003cli\u003eFor headphones above 150Ω impedance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cp\u003eCreates a connection of a stereo balanced line input via 2 x female XLRs and provides a headphone output, with level control.\u003c\/p\u003e\u003ch3\u003eProduct Category\u003c\/h3\u003e\u003cp\u003ePassive Controllers\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ch4\u003eAudio Specification\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput\/Output Level Ratio:\u003c\/strong\u003e 02:01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput\/Output Impedance Ratio:\u003c\/strong\u003e 04:01\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Headphone Impedance:\u003c\/strong\u003e 150Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Input Level:\u003c\/strong\u003e +28dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Output Level:\u003c\/strong\u003e +22dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20Hz to 20kHz, +0\/-0.5dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise:\u003c\/strong\u003e \u0026lt;-115dBu A-wgtd\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistortion Ref +8dBu (Output):\u003c\/strong\u003e \u0026lt;0.01%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Mode Rejection:\u003c\/strong\u003e \u0026gt;80dB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eConnections\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Stereo Input (CM-HPX1):\u003c\/strong\u003e 2 x XLR 3 pin, female\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e ¼” (6.35mm) A\/B gauge 3-pole stereo jack sockets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eEquipment Type\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eCM-HPX1:\u003c\/strong\u003e Headphone volume control, XLR input\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003ePhysical Specification\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Raw):\u003c\/strong\u003e 7.7cm (W) x 8.3cm (D) x 4.2cm (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Raw):\u003c\/strong\u003e 3.0” (W) x 3.3” (D) x 1.7” (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Nett: 0.22kg Gross: 0.33kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Nett: 0.49lbs Gross: 0.73lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSupport and Downloads\u003c\/h3\u003e\u003ch4\u003eHandbooks \u0026amp; Guides\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/ad56550c.delivery.rocketcdn.me\/wp-content\/uploads\/products\/CM-HPX1\/cm-hpr1_cm-hpx1_hb.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCM-HPX1 Handbook\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eBrochures\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/brochures-guides\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eClick to visit the brochures page.\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eDeclarations\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/support\/ce-ukca-declarations\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eClick to visit the declarations page.\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eRelated Products\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/cm-hpr1\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCM-HPR1 Headphone Volume Control\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/cm-mnt1\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCM-MNT1 Desk Mount Panel\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOfficial Links\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/cm-hpx1\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOfficial Product Page\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e","brand":"Sonifex","offers":[{"title":"Default Title","offer_id":53670251430229,"sku":"CM-HPX1","price":265.87,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/6993\/3141\/files\/Sonifex_Sonifex_CM_HPX1_Headphone_Volume_Control_01.jpg?v=1780656578","url":"https:\/\/tvpro.lt\/products\/sonifex-cm-hpx1-headphone-volume-control","provider":"tvpro.lt – Broadcast \u0026 Pro Video Equipment Online Store","version":"1.0","type":"link"}