Fono MC
Moving-coil phono stage with a discrete FET input stage, switchable gain and selectable resistive and capacitive loading. It suits owners of low-output MC cartridges, particularly Rega's own MC range, who need a dedicated phono preamp.
- Moving-coil phono stage
- All-discrete input stage using LSK389 FET
- MUSE op-amp for RIAA equalisation
- Two gain settings: 63.5 dB and 69.5 dB
- Rear dip switches for resistance and capacitance loading
- Powered by Rega PS1 only (24 V AC)
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The Fono MC amplifies the signal from a moving-coil cartridge to a level suitable for a standard 200 mV line-level input on a hi-fi amplifier. Its input stage is built around a Linear Systems LSK389 low-noise FET in an all-discrete configuration. The high input impedance of the FET means the circuit puts very little loading on the cartridge.
RIAA equalisation is handled by a MUSE operational amplifier, and polypropylene capacitors are used in the signal path and in the equalisation circuits. Loading is set with dip switches on the rear panel: resistance (70 Ω, 100 Ω, 150 Ω or 400 Ω) and capacitance (1000 pF or 4300 pF) are selectable, and a further switch chooses between two gain settings (63.5 dB or 69.5 dB). This lets it work with most low-output MC cartridges.
The unit sits in the same aluminium case as the TTPSU and Fono MM, and its circuit grew out of the work done on the Aria phono amplifier. It is powered by a 24 V AC supply and is intended to be used only with the Rega PS1.
Video
Specificaties
- Merk
- Rega
- Model
- Fono MC
- Categorie
- Hi-Fi en home-audio › Overige Hi-Fi
Audio
- Input type
- Moving coil (MC)
- Gain at 1 kHz (switch 4 off)
- 63.5 dB
- Gain at 1 kHz (switch 4 on)
- 69.5 dB
- Input sensitivity for 200 mV output (switch 4 off)
- 133 µV
- Input sensitivity for 200 mV output (switch 4 on)
- 67 µV
- Maximum input level at 1 kHz (switch 4 off)
- 6.7 mV
- Maximum input level at 1 kHz (switch 4 on)
- 3.4 mV
- 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
Inputs
- Loading resistance (switches 1 and 2 off)
- 400 Ω
- Loading resistance (switch 1 on)
- 100 Ω
- Loading resistance (switch 2 on)
- 150 Ω
- Loading resistance (switches 1 and 2 on)
- 70 Ω
- Loading capacitance (switch 3 off)
- 1000 pF
- Loading capacitance (switch 3 on)
- 4300 pF
Outputs
- Output impedance
- 200 Ω
- Recommended minimum output load resistance
- 5K
- Nominal output level
- 200 mV line level
Circuit
- Input stage
- All-discrete, Linear Systems LSK389 low-noise FET
- RIAA equalisation amplifier
- MUSE operational amplifier
- Signal path capacitors
- Polypropylene
Power
- Power requirements
- 24 V AC at 150 mA maximum
- Compatible power supply
- Rega PS1 only
Physical
- Case
- Aluminium, same as TTPSU and Fono MM
- Adjustment controls
- Rear-panel dip switches
Software
- User manual
- Multilingual