{"product_id":"sonifex-rb-bl4-dual-stereo-bi-directional-matching-converter","title":"Sonifex RB-BL4 | Dual Stereo Bi-Directional Matching Converter","description":"\u003cp\u003eThe RB-BL4 is a dual bi-directional stereo unit for interfacing domestic or semi-pro unbalanced equipment to professional balanced line levels, and vice versa. The four XLR-3 electronically balanced inputs have an impedance of 20kΩ bridging and are routed to four unbalanced RCA (phono) outputs with an output impedance of \u0026lt;50Ω.\u003c\/p\u003e\u003ch3\u003eProduct Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePre-set left and right gain controls\u003c\/li\u003e\n\u003cli\u003e2x Stereo phono (10kΩ) inputs.\u003c\/li\u003e\n\u003cli\u003e2x Stereo phono \u0026lt;50Ω outputs.\u003c\/li\u003e\n\u003cli\u003e2x Stereo balanced Neutrik XLR 20kΩ inputs.\u003c\/li\u003e\n\u003cli\u003e2x Stereo balanced Neutrik XLR \u0026lt;50Ω outputs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cp\u003eProviding bi-directional matching conversion between an unbalanced and balanced piece of equipment, typically between an unbalanced portable recorder \u0026amp; balanced USB or flashcard playback device.\u003c\/p\u003e\u003ch3\u003eProduct Category\u003c\/h3\u003e\u003cp\u003eSignal Converters\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ch4\u003eAudio Specification\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Input Level:\u003c\/strong\u003e +28dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Output Level:\u003c\/strong\u003e +28dBu\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance (RCA):\u003c\/strong\u003e \u0026gt;10kΩ unbalanced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance (XLR):\u003c\/strong\u003e \u0026gt;20kΩ balanced bridging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Impedance (RCA):\u003c\/strong\u003e \u0026lt;50Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Impedance (XLR):\u003c\/strong\u003e \u0026lt;50Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistortion:\u003c\/strong\u003e 0.01% THD @ 1kHz, ref +8dBu output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoise:\u003c\/strong\u003e -100dB, unity gain, ref +8dBu output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Mode Rejection:\u003c\/strong\u003e \u0026gt;66dB typically\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency Response:\u003c\/strong\u003e 20Hz to 20kHz ±0.1dB (600Ω load, ref 1kHz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain Range:\u003c\/strong\u003e Unbalanced Output : -28dBu to 0dBu, ref 0dBu into balanced XLR input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGain Range:\u003c\/strong\u003e Balanced Output : -15dBu to +15dBu, ref -15dBu into unbalanced RCA input\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eConnections\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInputs:\u003c\/strong\u003e 4 x RCA phono (Unbal), 4 x XLR 3 pin female (Bal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e 4 x XLR 3 pin male (Bal), 4 x RCA phono (Unbal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMains Input:\u003c\/strong\u003e Filtered IEC, switchable 110-120V, or 220-240V, fused, 6W max\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Rating:\u003c\/strong\u003e Anti-surge fuse 100mA 20 x 5mm (230VAC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuse Rating:\u003c\/strong\u003e Anti-surge fuse 250mA 20 x 5mm (115VAC)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eEquipment Type\u003c\/h4\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eRB-BL4:\u003c\/strong\u003e Dual stereo bi-directional matching converter\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003ePhysical Specification\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Raw):\u003c\/strong\u003e 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Raw):\u003c\/strong\u003e 19” (W) x 4.3” (D) x 1.7” (H) (1U)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Boxed):\u003c\/strong\u003e 58.5cm (W) x 22.5cm (D) x 7cm (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (Boxed):\u003c\/strong\u003e 23” (W) x 8.9” (D) x 2.8” (H)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Nett: 1.3kg Gross: 1.9kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Nett: 2.9lbs Gross: 4.2lbs\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\/RB-BL4\/redbox-03_hb.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-BL4 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\/rb-adda\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-ADDA Combined A\/D and D\/A Converter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/rb-adda2\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-ADDA2 Combined A\/D and D\/A Converter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/rb-bl2\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-BL2 Unbalanced to Balanced Bi-Directional Converter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/rb-dac1\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-DAC1 Digital to Analogue Converter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/rb-fr1\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-FR1 Front Panel Kits for Redboxes\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/rb-lu4\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-LU4 Quad Stereo Balanced to Unbalanced Converter\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/rb-rk3\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-RK3 Rear Panel Mounting\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sonifex.co.uk\/product\/rb-sc2\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRB-SC2 Dual Sample Rate Converter\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\/rb-bl4\" 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":53670176096597,"sku":"RB-BL4","price":578.04,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/6993\/3141\/files\/Sonifex_Sonifex_RB_BL4_Dual_Stereo_Bi_Directional_Matching_Converter_01.jpg?v=1780661350","url":"https:\/\/tvpro.lt\/products\/sonifex-rb-bl4-dual-stereo-bi-directional-matching-converter","provider":"tvpro.lt – Broadcast \u0026 Pro Video Equipment Online Store","version":"1.0","type":"link"}