{"product_id":"rdl-st-ph1","title":"RDL ST-PH1","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe ST-PH1 is a stereophonic phono preamplifier. Each of the two channel circuits is identical. The ST-PH1 has standard 47 k? impedance unbalanced phono cartridge inputs. Equalization follows the RIAA curve. Each output is capable of driving balanced or unbalanced, high or low impedance loads.\u003c\/p\u003e\u003cp\u003eRDL's SupplyFlex power input configuration is included in the ST-PH1. The power supply input may be fed from a floating (not ground-referenced) 24 Vdc power source, from a bipolar power supply (+\/- 12 Vdc or +\/-15 Vdc) or from a ground-referenced 24 Vdc power supply.\u003c\/p\u003e\u003cp\u003eAlthough phono inputs are provided on some equipment, optimum system performance is obtained when phonographs are preamplified as close to the turntable as possible, and then the line-level signals are fed to the next equipment in the chain. The convenience of the ST-PH1 is ideal for all such applications.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eStereo or Mono Phono Preamplifier\u003c\/li\u003e\n\u003cli\u003eBalanced or Unbalanced Outputs\u003c\/li\u003e\n\u003cli\u003eOutputs Drive Hi or Low Impedance Lines\u003c\/li\u003e\n\u003cli\u003eAccurate, Low-Noise Preamplification\u003c\/li\u003e\n\u003cli\u003eAdjustable Left and Right Output Levels\u003c\/li\u003e\n\u003cli\u003eRDL® SupplyFlex™ Power Input Configuration\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\u003e47 k? unbalanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e40 to 60 dB @ 1 kHz (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs (2)\u003c\/td\u003e\n\u003ctd\u003e300 ? to drive low or high impedance, balanced or unbalanced lines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Level\u003c\/td\u003e\n\u003ctd\u003e+4 dBu nominal, adjustable; (unbalanced output 6 dB below balanced line level)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTHD\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.03% (10 Hz to 30 kHz, high impedance load)\u003cbr\u003e\u0026lt; 0.015% (10 Hz to 30 kHz, 600 ? load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003eRIAA curve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise \u003c\/td\u003e\n\u003ctd\u003e\u0026lt; -75 dB (below +4 dBu)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeadroom\u003c\/td\u003e\n\u003ctd\u003e18 dB (above +4 dBu)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Operating Environment\u003c\/td\u003e\n\u003ctd\u003e0° C to 55° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eGROUND-REFERENCED or FLOATING, 24 Vdc @ 60 mA\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\u003e2 x 2 x 4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e0.19 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWEEE weight\u003c\/td\u003e\n\u003ctd\u003e0.14 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":43895105945643,"sku":"RDL-ST-PH1","price":187.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/3019\/5243\/files\/rdl-st-ph1-2__80373.1682443538.1280.1280.jpg?v=1775684041","url":"https:\/\/www.empirepro.com\/products\/rdl-st-ph1","provider":"Empire Pro","version":"1.0","type":"link"}