Phonos is a preamplifier for record players using either moving magnet or moving coil cartridges. The equalization curve is according to RIAA and suitable for all vinyl since 1954.
The RIAA filter is designed after Douglas Self.
With up to 70 dB gain for MC cartridges and 51 dB gain for MM cartridges Phonos belongs to the most powerful phono preamplifiers.
The technical basis of all Professional Fidelity units is our proprietory 120 V Rail Technology, which we also call VOLTAiR technology. The name makes reference to the unequalled high voltage of 120 V (+/-60 V DC) and the huge dynamic range of over 140 dB that goes with it.
Available in Black, Red or Silver.
120 V rail phono preamplifier for record players
RIAA equalization (after Douglas Self)
Suitable for MM (Moving Magnet) and MC (Moving Coil) cartridges
Max. preamplification: 51dB (MM); 70dB (MC)
Capacitances for MM: Off, 150 pF, 220 pF and 330 pF
Impedances for MC: 100, 220, 470; 2k2, 4k7 and 10 kohms
Styroflex condensers used throughout the RIAA equalizer
Switchable Gain: Normal, -10 dB, +4 dB
Gold-plated RCA in- and outputs
Audio ground connection for record player
Switchable rumble filter (Subsonic)
Linear power supply with toroidal transformer
Made in Germany
Inputs and Outputs
RCA, unbalanced, gold-plated
Input impedance (MM): 100 kohms
Output impedance (MC): switchable
Output impedance: < 5 ohms
Crosstalk: -80dB (at 1 kHz)
RIAA equalizer (after Douglas Self)
Moving Magnet (MM) preamplifier
Amplification: 47 dB (Norm.), 37 dB (-10 dB), 51 dB (+4 dB)
Switchable capacitance: Off, 150 pF, 220 pF and 330 pF
Noise (A-weighted): -85,3 dB
Moving Coil (MC) Verstärker
Amplification : 66 dB (Norm.), 56 dB (-10 dB), 70 dB (+4 dB)
Schaltbare Impedances: 100, 220, 470, 2k2, 4k7, 10 k ohms
Noise (A-weighted): -61,7 dB
Internal Operating Voltage
+/- 60 V
Mains voltage (switchable): 230 V AC / 50 Hz or 115 V AC / 60 Hz