{"product_id":"bellari-pa555-tube-pre-amp","title":"Bellari: PA555 Tube Pre Amp","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003ch4\u003e📌LAB POINTS\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eall analog 4-channel tube preamp\u003c\/li\u003e\n\u003cli\u003eadds warm tube sound (from 12AX7 tube) to any line level input source\u003c\/li\u003e\n\u003cli\u003e(3) stereo RCA inputs + (1) 1\/8\" input on front panel\u003c\/li\u003e\n\u003cli\u003erotary input selector + volume control\u003c\/li\u003e\n\u003cli\u003egold-plated RCA inputs and outputs, and grounding connection\u003c\/li\u003e\n\u003cli\u003emetal casing w\/ vibration damping feet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"faq-quote\"\u003e\"\u003cspan\u003eThe PA555 uses one 12AX7 tube running at 150 volts. The \u003c\/span\u003e\u003cspan\u003einput signal is connected directly to the grid of the tube and \u003c\/span\u003e\u003cspan\u003eall of the gain of the PA555 is from the 12AX7 tube. The out\u003c\/span\u003e\u003cspan\u003e-\u003c\/span\u003e\u003cspan\u003eput section is a pair of emitter followers to drive the output. \u003c\/span\u003e\u003cspan\u003eThe PA555 has a no feedback circuit or integrated circuits in \u003c\/span\u003e\u003cspan\u003ethe audio path, it is all analog\u003c\/span\u003e\" - Bellari\u003c\/p\u003e\n\u003ch4\u003e🔑KEY FEATURES\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003etube: 12AX7\u003c\/li\u003e\n\u003cli\u003einputs: 3x RCA stereo + 1\/8\" TRS stereo jack\u003c\/li\u003e\n\u003cli\u003eoutput: RCA stereo\u003c\/li\u003e\n\u003cli\u003einput Impedance: 10K ohms\u003c\/li\u003e\n\u003cli\u003emax output gain: 11.1 dB\u003c\/li\u003e\n\u003cli\u003eTHD: 0.1%\u003c\/li\u003e\n\u003cli\u003eS\/N Ratio: 103 db, unweighted\u003c\/li\u003e\n\u003cli\u003efrequency response: 5 Hz – 198 KHz +\/- 3 db\u003c\/li\u003e\n\u003cli\u003ecrosstalk: -75 dB\u003c\/li\u003e\n\u003cli\u003eoutput impedance: 100 Ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003edimensions\u003c\/span\u003e\u003cspan\u003e: 6\" x 2.5\" x 5.4\" \/ 15.9 x 5.1 x 17.1 cm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eweight: 2 lbs \/ 900 g\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e📦COMES WITH\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003epower supply\u003c\/li\u003e\n\u003c\/ul\u003e.","brand":"Bellari","offers":[{"title":"Tube Preamp","offer_id":17503958368346,"sku":"eq-1481","price":275.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0105\/4542\/products\/bellari-pa555.jpg?v=1759277108","url":"https:\/\/www.turntablelab.sbs\/products\/bellari-pa555-tube-pre-amp","provider":"turntablelab.sbs","version":"1.0","type":"link"}