The Rega Fono MC MK4 is a premium phono stage designed to fully unlock the capabilities of low-output moving coil cartridges, featuring comprehensive gain and loading adjustments. Its updated casing aligns aesthetically with the Fono MM MK5 and Neo MK2, offering a contemporary appearance. Utilizing the Linear Systems LSK389 FET, it delivers a low-noise, highly linear input stage with elevated input impedance, ensuring the amplifier does not interfere with the cartridge’s performance.
KEY FEATURES
Dedicated moving coil phono stage
Simple connectivity and operation
Fully adjustable via DIP switches via rear panel
MUSE operational amplifier used in RIAA equalization amplifier
Two selectable gain settings
Default factory settings matched for all Rega MC models
Latest design custom casework
TECHNICAL SPECIFICATIONS
Output Impedance-200 Ω
Recommended Minimum Output Load Resistance-5 frequency Response (50 kΩ Output Load)13 Hz (-3 dB) to 100 kHz (-0.3 dB)
RIAA Accuracy (50 kΩ Output Load)-Better than ±0.2 dB 100 Hz to 100 kHz
Power Requirements-24 V AC at 150 mA maximum
LOAD SETTINGS FOR ADJUSTABLE MC STAGES
Input Sensitivity (for 200 mV Output)-4 off = 133 uV / 4 on = 67 uV
Input Loading Resistance-1 and 2 off = 400 Ω / 1 on = 100 Ω / 2 on = 150 Ω / 1 and 2 on = 70 Ω
Input Loading Capacitance-3 off = 1000 pF / 3 on = 4300 pF / Gain (at 1 kHz) / 4 off = 63.5 dB / 4 on = 69.5 dB-
Maximum Input Level (at 1 kHz)-4 off = 6.7 mV / 4 on = 3.4 mV
Factory settings for all Rega MC cartridges Impedance 100 Ω / Capacitance 1000 pF / Gain Setting High
