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The MoFi MasterPhono is Mobile Fidelity’s flagship phono stage, built to dig everything out of your cartridge and serve it up with breathtaking clarity and scale. With fully adjustable gain and loading, it plays beautifully with both MM and the most finicky low-output MC carts, while its dual-mono design and massive power supply keep the noise floor vanishingly low. The result? Black backgrounds, explosive dynamics, and a presentation that feels alive—like pulling back the curtain on your records. This one is a distributor demo, meaning it’s lightly handled, well cared for, and already loosened up for peak performance. If you’re chasing endgame vinyl playback, the MasterPhono isn’t just a step up—it’s a statement piece.

S/N: 0510119

FACTORY SPECS

Gain:
Selectable gain for MM or MC 40db, 50db, 60db, 70db

THD:
10mV@1KHZ MM low: 0.005% A-Weighted
10mV@1KHZ MM high: 0.005% A-Weighted
1mV@1KHZ MC low: 0.010% A-Weighted
1mV@1KHZ MC high: 0.013% A-Weighted

Loading:
15 Ohms, 30 Ohms, 50 Ohms, 75 Ohms, 100 Ohms, 500 Ohms, 1K Ohms, 10K Ohms, 47K Ohms+150pF, & “Custom”

Max Output:
@1% THD, 10 Volts RMS

RIAA Accuracy:
-+/- 0.05db

Frequency Response:
10Hz–50KHz ±0.20dB

Weight:
15 lb / 6.8 kg

Warranty:
Five years parts & labor

• RCA/XLR: Voltage & Current inputs, Trans-impedance dynamic loading

• Dual-chassis: Power/Signal isolation, low noise, separate grounding

• Gain settings: 40/50/60/70dB, Impedance: 10 settings + Custom

• Fully discrete balanced circuitry, servo-controlled, DC-coupled, high pass filter

• Passive RIAA: Precise parts, NOS capacitors, accurate resistors

• Cascaded voltage regulation, ultra-low noise

• Remote controlled: Input, gain, mute, mono, meter, subsonic filter

• Dual Function VU meters for monitoring or cartridge calibration

MoFi Electronics

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MoFi MasterPhono // Demo / MM/MC Phono Preamp

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MoFi Sourcepoint 8 // Demo / Bookshelf Speakers / Walnut / With Stands