The Gram Amp 3 Fanfare phono stage preamp is a dedicated (fixed gain) conventional output moving coil cartridge phono stage preamp designed for moving coil phono cartridges having outputs in the range 0.3 to 1.2 mV (300 to 1,200 ¬µV). Corresponding output being 240 Р954mV (1kHz reference).
Developed over a four year period the Gram Amp 3 Fanfare phono stage preamp is a highly stable fast phono stage preamp maintaining acceptably low self noise.
Specifications
Input sensitivity range: 0.3mV to 1.2mV
Output for input sensitivity range: 240mV – 954mV
Maximum input level: 6.16mV (ref 1 kHz)
Gain (ref 1kHz): 58dB
Input impedance resistive: 100 Ohms
Output noise: (CCIR Q-Pk 22Hz-22 kHz) -67dB
Equivalent Input Noise (EIN) -125dB
Reproduction characteristic: RIAA within 0.5dB total deviation 20Hz-20kHz
Total Harmonic Distortion plus noise measured at 80Hz, 1kHz, 5.6 kHz and 16 kHz: less than 0.05% (typically <0.015% at 1 kHz)
Channel balance: 0.1dB
Channel separation: 64dB