{"product_id":"musical-fidelity-nu-vista-pam-power-amplifier","title":"Musical Fidelity Nu-Vista PAM Power Amplifier","description":"\u003ch2\u003eMusical Fidelity Nu-Vista PAM Power Amplifier\u003c\/h2\u003e\n\u003cp\u003eBased on the excellent Nu-Vista 800 circuit, Nu-Vista PAM takes the Nu-Vista range fully balanced. It features the tried-and-tested Nu-Vista stage with 6S51N nuvistor tubes in a discrete Class A amplifier buffer, followed by a balanced configuration circuit and a balanced-input, high-power, low-distortion bridged output amplifier stage. As part of Musical Fidelity's PRE\/PAS\/PAM separates system, it's designed to pair with the corresponding Nu-Vista preamp and phono\/DAC components. As an authorized Musical Fidelity dealer in Toronto, Canada, Vinyl Sound can help you build a Nu-Vista separates system around this power amplifier.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e6S51N nuvistor tubes in a discrete Class A amplifier buffer\u003c\/li\u003e\n  \u003cli\u003eFully balanced configuration and balanced-input bridged output stage\u003c\/li\u003e\n  \u003cli\u003eGreater than 600W into 8 ohms, 1000W into 4 ohms, 1500W peak into 2 ohms\u003c\/li\u003e\n  \u003cli\u003eBased on the TITAN 1000W stage, with separate bulk supply capacitors and one capacitor per output device\u003c\/li\u003e\n  \u003cli\u003eChokes added for improved supply ripple and pulse current spike reduction\u003c\/li\u003e\n  \u003cli\u003eBiased for over 5W of initial Class A operation before transitioning to Class B\u003c\/li\u003e\n  \u003cli\u003e2x 5 pairs of high-power, thermally compensated output devices per channel\u003c\/li\u003e\n  \u003cli\u003eDedicated external power supply (Nu-Vista PAM PSU), housing transformers away from the sensitive amplifier circuits\u003c\/li\u003e\n  \u003cli\u003e4 fully independent inputs (2x RCA, 2x XLR), 2 loop-through outputs (1x RCA, 1x XLR)\u003c\/li\u003e\n  \u003cli\u003eTrigger input and output\u003c\/li\u003e\n  \u003cli\u003eMassive extruded-aluminium front and side panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTITAN-Derived Power Stage\u003c\/h2\u003e\n\u003cp\u003eThe power stage is based on the TITAN 1000W design, using separate capacitors for bulk supply plus one dedicated capacitor per output device, reducing output impedance and improving dynamics. Chokes are added for further ripple and pulse current spike reduction. Bias is set for more than 5W of initial Class A operation, after which the stage transitions into Class B at a point Musical Fidelity states is easier to manage than standard crossover distortion.\u003c\/p\u003e\n\n\u003ch2\u003eDedicated External Power Supply\u003c\/h2\u003e\n\u003cp\u003eNu-Vista PAM ships with its own dedicated Nu-Vista PAM PSU. Moving the AC mains power supply out of the main chassis and into its own matching box frees up space for built-in mains and output filtering, quietening the supply and reducing mains-borne artefacts reaching the sensitive audio circuitry — it also keeps transformers, which generate mechanical vibration and radiate electromagnetic fields, as far as possible from the critical amplifier circuits. The external supply has ON\/Standby LEDs controlled from the main unit's front panel, plus a rear-mounted mechanical rocker switch for full mains isolation.\u003c\/p\u003e\n\n\u003ch2\u003eNuvistor Tubes\u003c\/h2\u003e\n\u003cp\u003eNuvistor tubes were invented in the 1950s to solve the shortcomings of conventional tubes, offering high reliability, low microphony, low noise, batch-to-batch consistency, small size, and low power consumption. They saw limited but notable use in studio equipment of the era, including the Ampex MR-70 tape recorder and the AKG\/Norelco C12a and Neumann U47 studio microphones. The transistor's invention largely ended further development of nuvistors until Musical Fidelity created its first Nu-Vista series around fifteen years ago — a limited edition that sold out within months and now commands high secondhand prices.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;600W into 8Ω, 1000W into 4Ω, 1500W peak into 2Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput voltage\u003c\/td\u003e\n\u003ctd\u003e69V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput current\u003c\/td\u003e\n\u003ctd\u003e150A peak-to-peak\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDamping factor\u003c\/td\u003e\n\u003ctd\u003e180\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eOutput devices\u003c\/td\u003e\n\u003ctd\u003e5+5 pairs per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eGain\u003c\/td\u003e\n\u003ctd\u003e16x (23.5dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTHD+N\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.003% typical, 20Hz-20kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSignal-to-noise ratio\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;108dB A-weighted\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInput impedance\u003c\/td\u003e\n\u003ctd\u003e100kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInput sensitivity (full output)\u003c\/td\u003e\n\u003ctd\u003e4.3V RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e+0, -1dB, 5Hz-50kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003e4 fully independent (2x RCA, 2x XLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eLoop-through outputs\u003c\/td\u003e\n\u003ctd\u003e2 (1x RCA, 1x XLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSpeaker outputs\u003c\/td\u003e\n\u003ctd\u003e2 pairs, 4mm banana\/binding posts\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eTrigger\u003c\/td\u003e\n\u003ctd\u003e3.5mm mono jack, in\/out, ±5V to ±12V trigger level\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMains voltage\u003c\/td\u003e\n\u003ctd\u003e115\/230VAC 50\/60Hz (factory pre-set); 100VAC 50\/60Hz alternative\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003ePower consumption\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.5W standby; 130W idle; 2150W maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions, PAM (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e483 x 187.5 x 475mm (494mm with connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions, PAM PSU (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e483 x 187.5 x 475mm (478mm with connectors)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight, PAM\u003c\/td\u003e\n\u003ctd\u003e27 kg net (35 kg boxed)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eWeight, PAM PSU\u003c\/td\u003e\n\u003ctd\u003e40 kg net (50 kg boxed)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this include the power supply?\u003c\/strong\u003e\u003cbr\u003e\nYes, Nu-Vista PAM ships together with its dedicated Nu-Vista PAM PSU as a two-chassis system, controlled from the main unit's front panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is this designed to pair with?\u003c\/strong\u003e\u003cbr\u003e\nNu-Vista PAM is part of Musical Fidelity's PRE\/PAS\/PAM separates system, designed to pair with the corresponding Nu-Vista preamp and source components for a full separates system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I connect multiple sources directly?\u003c\/strong\u003e\u003cbr\u003e\nYes, it has 4 fully independent inputs (2x RCA, 2x XLR) plus loop-through outputs for daisy-chaining to another amplifier or zone.\u003c\/p\u003e\n","brand":"Musical Fidelity","offers":[{"title":"Default Title","offer_id":49992160444668,"sku":"NUVISTAPAMB","price":29999.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0116\/1773\/0617\/files\/1_nu-vista-pam-front.png?v=1784092354","url":"https:\/\/vinylsound.ca\/products\/musical-fidelity-nu-vista-pam-power-amplifier","provider":"Vinyl Sound Canada Inc.","version":"1.0","type":"link"}