{"product_id":"heed-audio-thesis-phi-preamplifier","title":"Heed Audio Thesis Phi Preamplifier","description":"\u003cp\u003eHeed Audio's Thesis φ (phi) is a no-compromise phono preamplifier for all vinyl connoisseurs using a top-class turntable. Noise characteristics, dynamic range, headroom and frequency response of the Thesis φ are second to none. This preamp is also fed by the Thesis π twin PSU. By using two independent – MM (moving magnet) and MC (moving coil) – amplifier circuits, it is possible to use two record players connected simultaneously. Cartridge matching is highly customisable for gain and impedance on the rear panel of the unit by jumpers. \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhi Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs:\u003c\/td\u003e\n\u003ctd\u003e1x MM \/ 1x MC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs:\u003c\/td\u003e\n\u003ctd\u003e1x MM 50 Ω \/ 1x MM 600 Ω \/ 1x MC 50 Ω \/ 1x MC 600 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain (MC):\u003c\/td\u003e\n\u003ctd\u003e44 \/ 50 \/ 56 \/ 62 \/ 68 \/ 74 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGain (MM):\u003c\/td\u003e\n\u003ctd\u003e33 \/ 48 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance (MC):\u003c\/td\u003e\n\u003ctd\u003e100 \/ 220 \/ 470 \/ 1000 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput impedance (MM):\u003c\/td\u003e\n\u003ctd\u003e47 kΩ \/ 150 pF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNoise floor:\u003c\/td\u003e\n\u003ctd\u003e-90 dBV (MC) \/ -84 dBV (MM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply options:\u003c\/td\u003e\n\u003ctd\u003eThesis Pi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D):\u003c\/td\u003e\n\u003ctd\u003e9.5 x 7.5 x 22 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePi Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType:\u003c\/td\u003e\n\u003ctd\u003e2-stage regulated power supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported devices:\u003c\/td\u003e\n\u003ctd\u003eThesis Alpha \/ Thesis Phi \/ Quasar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (WxHxD):\u003c\/td\u003e\n\u003ctd\u003e22 x 8.5 x 32.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Heed Audio","offers":[{"title":"Thesis Phi","offer_id":47668578517233,"sku":null,"price":3400.0,"currency_code":"CAD","in_stock":true},{"title":"Thesis Phi + Thesis Pi","offer_id":47668578550001,"sku":null,"price":7100.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0942\/5024\/files\/HeedAudio-thesisphi-front-noteworthyaudio-1000x.jpg?v=1768238504","url":"https:\/\/www.noteworthyaudio.com\/products\/heed-audio-thesis-phi-preamplifier","provider":"Noteworthy Audio","version":"1.0","type":"link"}