Rega Fono MC MK4 Phono Preamplifier - Black - Mint Condition

Unused Open-Box Unit with Warranty

• Brand/Model/Finish: Rega Fono MC MK4 - Black Aluminum
• Condition: Open-box mint condition, never used
• Retail: $445 
• Configuration: MC-specific phono stage, 63.5/69.5dB gain, adjustable loading, discrete FET input
• What's Included: Complete with power supply, manual, all original packaging
• Warranty: One-year Rega Lifetime Limited Warranty

British Precision from the Kings of Vinyl

Rega emerged in the 1970s when founder Roy Gandy grew frustrated repairing poorly-built turntables. His solution was simple: build them properly from the start. From a small workshop in Essex, Rega revolutionized analog playback with the legendary Planar turntables that remain benchmarks five decades later.

When you control every aspect of the vinyl chain - turntables, tonearms, cartridges - you understand precisely what a phono stage must achieve. The Fono MC MK4 represents Rega's obsession with extracting every microsecond of musical information from those tiny moving coil windings.

What makes this remarkable is the technology transfer from Rega's flagship Aria phono stage. The MK4 inherits the same Linear Systems FET topology that made the Aria a Stereophile Class A component - at less than half the price.

Silicon Valley Meets British Engineering

• Linear Systems LSK389 FET: Military-spec silicon from the company that supplies NASA, providing vanishingly low noise floor essential for MC cartridges
• All-Discrete Input Stage: No integrated circuits in the critical first stage where your cartridge's microscopic signal is most vulnerable
• Adjustable Everything: Four-position impedance loading (70/100/150/400Ω) and dual gain settings accommodate 90% of MC cartridges
• Polypropylene Signal Path: Audiophile-grade capacitors throughout, including RIAA equalization circuits
• MUSE Op-Amp Technology: Premium operational amplifier in the RIAA stage for exceptional linearity

What the Golden Ears Are Saying

"Easily the best sub-$600 moving coil phono stage we have tested. You get lots of tech that Rega learned about in their much more expensive Aria phono preamp. If you have a Rega Ania, it's a no-brainer, perfect match!" - Audio Advice Review

"The Fono MC MK4 delivers superb performance. An outstanding affordable MC phono stage with flexible setup and compact handsome appearance." - Rega User Review

Engineering Excellence by the Numbers

• Gain Settings: 63.5dB or 69.5dB (switchable)
• Input Impedance: 70Ω, 100Ω, 150Ω, or 400Ω (selectable)
• Input Capacitance: 1000pF or 4300pF (switchable)
• Frequency Response: 13Hz-100kHz (-3dB/-0.3dB)
• RIAA Accuracy: ±0.2dB (100Hz-100kHz)
• Output Impedance: 200Ω
• Power Requirements: 24VAC/150mA
• Dimensions: Compact half-width design

Why the Fono MC MK4 Matters

Moving coil cartridges are notoriously finicky about loading. Set it wrong and your $2,000 cartridge sounds like it's playing through a blanket. The MK4's comprehensive adjustability means it works perfectly with virtually any MC cartridge - from Rega's own to Ortofon, Dynavector, or Benz Micro.

That Linear Systems FET is crucial. With its ultra-high input impedance, your cartridge effectively "doesn't see" the phono stage as additional loading. This preserves the delicate phase relationships and micro-dynamics that make moving coils so magical. The noise floor is so low that previously buried details emerge - the decay of a cymbal, the texture of a bowed string, the air around voices.

Most impressive is how the MK4 maintains Rega's house sound: natural, uncolored, rhythmically engaging. This isn't clinical accuracy; it's musical truth.

Perfect System Matching

Ideal for: Any low-output MC cartridge (0.05-0.5mV), turntables from entry-level to reference grade, integrated amplifiers or preamps lacking MC capability, upgrading from built-in phono stages, systems where vinyl is the primary source.

Open-Box Guarantee: This unused unit is absolutely pristine, opened only for inspection. Complete with Rega's legendary lifetime warranty covering manufacturing defects. An exceptional opportunity to add reference-quality MC amplification to your analog system at significant savings.