MoFi MasterPhono: A Benchmark in analog audio

Designed with versatility in mind, the MoFi Electronics MasterPhono preamplifier features multiple inputs and both balanced and single-ended outputs

MoFi Electronics MasterPhono
MoFi Electronics MasterPhono

The MasterPhono preamplifier, created in partnership with esteemed audio engineer Peter Madnick, exemplifies the pinnacle of innovation and craftsmanship in high-performance audio. Inspired by Madnick’s distinguished legacy and the sonic accuracy of MFSL vinyl reissues, the MasterPhono is meticulously engineered to provide exceptional fidelity. Over a year of extensive research, prototyping, and development has led to the creation of this advanced all-analog device.

Find the perfect match for your cartridge with 10 switchable impedance loading adjustments, including a “Custom” via RCA plug on rear panel.
Find the perfect match for your cartridge with 10 switchable impedance loading adjustments, including a “Custom” via RCA plug on rear panel.

Designed with versatility in mind, the MasterPhono preamplifier features multiple inputs and both balanced and single-ended outputs, allowing audiophiles to tailor their listening experience.

An intuitive front panel interface simplifies control, making it easy to navigate all settings. Staying true to its analog roots, the MasterPhono showcases prominently displayed analog meters that fulfill both functional and aesthetic roles.

MoFi Electronics MasterPhono
MoFi Electronics MasterPhono

The addition of a USB input positions the preamplifier for future firmware updates and software improvements, enabling users to keep pace with advancing audio technologies.

Dual meters can be used for monitoring or calibration of cartridge azimuth.
Dual meters can be used for monitoring or calibration of cartridge azimuth.

Precision Specifications

The MasterPhono’s meticulous engineering is evident in its specifications, which prioritize performance and sound integrity:

  • Gain: Selectable levels for MM or MC cartridges—40dB, 50dB, 60dB, and 70dB—catering to a wide range of setups.
  • THD (Total Harmonic Distortion): Exceptional low distortion rates:
    • 10mV@1kHz MM low/high: 0.005% A-Weighted
    • 1mV@1kHz MC low: 0.010% A-Weighted / MC high: 0.013% A-Weighted
  • Loading Options: Ten impedance settings ranging from 15 Ohms to 47K Ohms+150pF, plus a customizable option, ensure precise matching with various cartridges.
  • RIAA Accuracy: Accurate within ±0.05dB.
  • Frequency Response: 10Hz–50kHz ±0.20dB.
  • Signal-to-Noise Ratio: 93dB (MM) and 85dB (MC).

Tailored for Audiophiles

The dual-chassis architecture of the MasterPhono effectively separates power and signal pathways, minimizing noise interference and ensuring distinct grounding. Its fully discrete balanced circuitry is servo-controlled and DC-coupled, enhanced by a high-pass filter that delivers exceptional sound clarity. The passive RIAA equalization employs meticulously chosen components, such as NOS capacitors and high-precision resistors, to achieve outstanding tonal fidelity.

Mofi Masterphono inputs and outputs
Mofi Masterphono inputs and outputs

Measuring 17” x 3.5” x 15.75” (43.2 x 8.9 x 40 cm) and weighing 15 lb (6.8 kg), the MasterPhono merges sturdy construction with elegant design. It is supported by a five-year warranty on parts and labor, reflecting the manufacturer’s dedication to quality and longevity.

The MasterPhono preamplifier transcends mere functionality; it serves as a conduit to the truest expression of analog sound. With its meticulous engineering, advanced features, and a design ethos that respects the analog heritage, the MasterPhono is an exemplary choice for audiophiles seeking the pinnacle of their listening experience.

Price: $6,000

Specifications:

Gain:

  • Selectable gain for MM or MC: 40dB, 50dB, 60dB, 70dB

THD (Total Harmonic Distortion):

  • MM Low (10mV @ 1kHz): 0.005% A-Weighted
  • MM High (10mV @ 1kHz): 0.005% A-Weighted
  • MC Low (1mV @ 1kHz): 0.010% A-Weighted
  • MC High (1mV @ 1kHz): 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:

  • 10 Volts RMS @ 1% THD

RIAA Accuracy:

  • +/- 0.05dB

Frequency Response:

  • 10Hz – 50kHz ±0.20dB

Signal to Noise Ratio:

  • 93dB (MM)
  • 85dB (MC)

Dimensions (WxHxD):

  • 17” x 3.5” x 15.75” (43.2 x 8.9 x 40 cm)

Weight:

  • 15 lb / 6.8 kg

Warranty:

  • Five years parts & labor