{"product_id":"mofi-electronics-ultraphono-pro-mm-mc-phono-preamplifier","title":"MoFi Electronics UltraPhono Pro MM\/MC Phono Preamplifier","description":"\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca href=\"#tab1\" class=\"active\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab2\"\u003eFeatures\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#tab3\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--Start tab content--\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli id=\"tab1\" class=\"active\"\u003e\n\u003ch6\u003eGet Serious with a Streamlined MM\/MC Phono Preamplifier That Stays Faithful to the Source: MoFi Electronics UltraPhono Pro Offers Superb Musicality and Ease of Use, Features Passive RIAA Equalization and Discrete J-FET and MOSFET Stages\u003c\/h6\u003e\n\u003cp\u003eWant studio-caliber analog performance without the larger costs that accompany such pursuits? Ideal for turntable enthusiasts who need only a single input, the MoFi Electronics UltraPhono Pro MM\/MC phono preamplifier delivers just that and replicates nearly all of the architecture found in its more expensive, multiple-input MasterPhono sibling. Adhering to the very same low-noise topology and hand-selected parts assembly, this U.S.-made component offers superb musicality, precision, and ease of use.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned to follow the philosophy embraced by Mobile Fidelity Sound Lab engineers — specifically, to get as close to the original studio sound of a record as possible, refrain from any sort of embellishment, and keep loss to an absolute minimum — UltraPhono Pro strives to extract copious amounts of information from your turntable, tonearm, and cartridge combination, and pass signals along exceptional clarity, integrity, and truthfulness.\u003c\/p\u003e\n\u003cp\u003eThat’s why UltraPhono Pro features fully discrete J-FET and MOSFET input and output stages, a seven-stage regulated balanced power supply for an ultra-quiet foundation, and passive RIAA equalization with zero feedback. The latter is a deliberate choice that favors natural transients, tonal realism, organic character, and lifelike presentations. Other audiophile touches — film-foil capacitors that maintain RIAA accuracy within +\/-0.05dB to hermetically sealed gold-on-gold relays — further speak to its achieved goals of purist-based analog playback.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHoused in a rigid steel chassis with a brushed aluminum top and front panel, UltraPhono Pro also makes listeners’ lives easy when it comes to cartridge matching and flexibility. All gain and loading controls are accessible via the front panel. And you have options. Three RCA gain settings and three balanced XLR gain settings complement five loading settings. All that, and on-the-fly adjustability, without the needless complexity of a multi-input design.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab2\"\u003e\n\u003ch6\u003e\u003cspan class=\"Apple-converted-space\"\u003eFeatures:\u003c\/span\u003e\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eStandard signal input via RCA\u003c\/li\u003e\n\u003cli\u003eFive-position loading adjustment\u003c\/li\u003e\n\u003cli\u003eFully discrete from input to output\u003c\/li\u003e\n\u003cli\u003eSingle-ended RCA and balanced XLR outputs\u003c\/li\u003e\n\u003cli\u003eSwitchable gain (40db\/52db\/65db)\u003c\/li\u003e\n\u003cli\u003ePassive RIAA with NOS polystyrene and polypropylene film\/foil capacitors for better than 1% precision\u003c\/li\u003e\n\u003cli\u003eAll critical resistors are 0.1% or 0.5% tolerance for precise filtering and voltages\u003c\/li\u003e\n\u003cli\u003eStereo and mono modes\u003c\/li\u003e\n\u003cli\u003eSubsonic filter\u003c\/li\u003e\n\u003cli\u003eUltra-low-hum field power supply\u003c\/li\u003e\n\u003cli\u003eIsolated chassis and signal grounding post for low-overall system noise\u003c\/li\u003e\n\u003cli\u003eCascaded voltage-regulation stages for lowest noise\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli id=\"tab3\"\u003e\n\u003ch6 class=\"productView-details__heading\"\u003eSpecifications:\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eInputs: RCA jack, voltage mode, single-ended\u003c\/li\u003e\n\u003cli\u003eLoading: Resistive set via front-panel knob\u003c\/li\u003e\n\u003cli\u003eOhms Options: 100 Ohms, 300 Ohms, 500 Ohms, 1k Ohms, 47k Ohms\u003c\/li\u003e\n\u003cli\u003eGain: RCA output: 40db, 52db, 65db; Balanced output: 46db, 58db, 71db Set via front-panel knob\u003c\/li\u003e\n\u003cli\u003eOutput Impedance: Balanced: 230 Ohms, Unbalanced: 115 Ohms\u003c\/li\u003e\n\u003cli\u003eMaximum Output: Maximum Output @1% THD, 10 Volts RMS\u003c\/li\u003e\n\u003cli\u003eTHD: 110mV@1kHz 40db gain: 0.005% A-Weighted; 10mV@1kHz 65db gain: 0.005% A-Weighted; 1mV@1kHz 40db gain: 0.010% A-Weighted; 1mV@1kHz 65db gain: 0.013% A-Weighted\u003c\/li\u003e\n\u003cli\u003eRIAA Accuracy: +\/- 0.05db\u003c\/li\u003e\n\u003cli\u003eFrequency Response: 10Hz – 50kHz +\/- 0.20db\u003c\/li\u003e\n\u003cli\u003eS\/N ratio: (20Hz-20KHz) Balanced 40db gain: 82db, 93db A-Weighted; Balanced 65db gain: 78db, 85db A-Weighted; RCA 40db gain: 75db, 83db A-Weighted;\u003c\/li\u003e\n\u003cli\u003eRCA 65db gain: 69db, 75db A-Weighted\u003c\/li\u003e\n\u003cli\u003eChassis size: 17\"W x 2.0\"H (no feet, 2.5\"w\/feet) x 9.875\"D (chassis only) 11.375\" (w\/ knobs and jacks)\u003c\/li\u003e\n\u003cli\u003eWeight: 7lbs.\u003c\/li\u003e\n\u003cli\u003eAC Mains: 100VAC – 260VAC, auto switching\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dedicated Audio","offers":[{"title":"Default Title","offer_id":51742951932221,"sku":null,"price":2495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0653\/5587\/files\/0002_MoFi_UltraPhono_Pro_Front.webp?v=1779400014","url":"https:\/\/www.dedicatedaudio.com\/products\/mofi-electronics-ultraphono-pro-mm-mc-phono-preamplifier","provider":"Dedicated Audio","version":"1.0","type":"link"}