{"product_id":"rdl-ru-ada8d","title":"RDL RU-ADA8D","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe RU-ADA8D is an eight channel stereo audio distribution amplifier with input and output gain adjustments and input level metering. The module may be operated in mono to provide up to sixteen distributed mono signals. The inputs and outputs are connected on rear-panel detachable terminal blocks.\u003c\/p\u003e\u003cp\u003eEach of the two line level inputs accepts either a balanced or an unbalanced signal. Each input is equipped with a front panel INPUT GAIN trimmer. Input signal levels between -14 dBV unbalanced and +9 dBu balanced may be set to the proper operating level as indicated by a dual-LED VU meter. This assures ample headroom at all normal operating levels. The maximum input level is +25 dBu.\u003c\/p\u003e\u003cp\u003eA rear-panel switch selects between stereo and mono operation. In the mono position, input A (left) is used to drive all 16 output channels. When the module is used in a monaural system, only input A must be wired.\u003c\/p\u003e\u003cp\u003eAudio outputs are isolated from each other and may be wired balanced or unbalanced. Each of the outputs is provided with a front panel screwdriver adjusted OUTPUT LEVEL control. Relative to a balanced +4 dBu output level, this gain potentiometer allows an adjustment range from -9 dB to +6 dB. Relative to an unbalanced -10 dBV output, each output potentiometer allows an adjustment from -3 dB to +12 dB.\u003c\/p\u003e\u003cp\u003eThe RU-ADA8D offers exceptional headroom, very low distortion, excellent crosstalk isolation, wide flat frequency response and extremely low noise with very high common-mode signal rejection. It provides exceptional audio performance for the most critical applications in a professional audio environment.\u003c\/p\u003e\u003cp\u003eThe RU-ADA8D operates from 24 Vdc connected through a rear-panel detachable terminal block.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStereo Audio Distribution with 8 Outputs\u003c\/li\u003e\n\u003cli\u003eMono Audio Distribution with 16 Outputs\u003c\/li\u003e\n\u003cli\u003eFront-Panel Input Level Trimmers\u003c\/li\u003e\n\u003cli\u003eDual-LED VU Meter for Each Input Channel\u003c\/li\u003e\n\u003cli\u003eFront-Panel Output Level Trimmers\u003c\/li\u003e\n\u003cli\u003eInputs and Outputs on Rear Panel Detachable Terminal Blocks\u003c\/li\u003e\n\u003cli\u003eExceptional Audio Quality for the Most Demanding Applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable class=\"table1\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs (2)\u003c\/td\u003e\n\u003ctd\u003eStereo (A\/left and B\/right) on detachable terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e20 k? balanced or 10 k? unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Level\u003c\/td\u003e\n\u003ctd\u003e+4 dBu balanced (nominal), +25 dBu maximum; -10 dBV unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Gain Adjustments (2)\u003c\/td\u003e\n\u003ctd\u003e-5 dB to +15 dB (rel. +4 dBu balanced); -3 dB to +17 dB (rel. -10 dBV unbalanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Metering (2)\u003c\/td\u003e\n\u003ctd\u003eDual-LED VU Meter for Input A and Input B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMono mode\u003c\/td\u003e\n\u003ctd\u003eRear-panel switch-selectable (input A feeds all 16 outputs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs (16)\u003c\/td\u003e\n\u003ctd\u003eStereo, A (8), B (8) on detachable terminal blocks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance\u003c\/td\u003e\n\u003ctd\u003e150 ? balanced; 75 ? unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Level\u003c\/td\u003e\n\u003ctd\u003e+4 dBu balanced (nominal), +24 dBu maximum; -10 dBV unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Level Adjustments (16)\u003c\/td\u003e\n\u003ctd\u003e-9 dB to +6 dB (rel. +4 dBu, balanced); -3 dB to + 12 dBu (rel. -10 dBV, unbalanced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e10 Hz to 165 kHz (+\/- 0.25 dB); 10 Hz to 35 kHz (+\/- 0.01 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.0025% (20 Hz to 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadroom\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 20 dB (above +4 dBu input or output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -92 dB (below +4 dBu output, 20 Hz to 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrosstalk\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -85 dB (20 Hz to 1 kHz); \u0026lt;-70 dB (1 kHz to 20 kHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCMRR\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 90 dB (100 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Environment\u003c\/td\u003e\n\u003ctd\u003e0° C to 50° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eGROUND REFERENCED, 24 Vdc @ 140 mA (idle, nominal), 170 mA (max.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase dimensions\u003c\/td\u003e\n\u003ctd\u003e5.75\" (14.6 cm)W x 1.65\" (4.18 cm)H x 3.54\" (9.0 cm)D; 3.9\" (9.9 cm)D with connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Type\u003c\/td\u003e\n\u003ctd\u003eCardboard Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Dimensions\u003c\/td\u003e\n\u003ctd\u003e6 x 6 x 2.625 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e1.585 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWEEE weight\u003c\/td\u003e\n\u003ctd\u003e1.34 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff code\u003c\/td\u003e\n\u003ctd\u003e8518.40.2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"RDL","offers":[{"title":"Default Title","offer_id":43895095328811,"sku":"RDL-RU-ADA8D","price":523.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/3019\/5243\/files\/rdl-ru-ada8d-2__13597.1682443508.1280.1280.jpg?v=1775683979","url":"https:\/\/www.empirepro.com\/products\/rdl-ru-ada8d","provider":"Empire Pro","version":"1.0","type":"link"}