THE PHONO BOX SE II MM/MC Phono Preamplifier is a high-performance solid state phono preamplifier and RIAA equalizer for use with any moving magnet or moving coil phono cartridge (seven selectable impedance settings for MC cartridges). Special low-noise component parts are used throughout the dual-mono circuit design for optimized fidelity and superior channel separation. Gain is rated at 60db (MC). Special attention has been paid to the shielding of the metal chassis to prevent any distortions created from vibration or electromagnetic interference. A subsonic filter provides 24db/octave of attenuation at 18Hz, effectively eliminating low frequency noise and rumble. Gold plated RCA jacks and outboard power supply are included.
| Input impedances, MM | 120, 220, 340 and 440pf/47kohm |
| Input impedances, MC | 17, 18, 20, 22, 69, 100 and 220ohms/120pF |
| Output voltage | 300mV/1kHz at 3mV/1kHz (MM input) |
| Gain, MM | 40dB |
| Output voltage | 300mV/1kHz at 0,3mV/1kHz (MC input) |
| Gain, MC | 60dB |
| Noise floor, MM | 95dB (100dB - A weighted) |
| Noise floor, MC | 75dB (80dB - A weighted) |
| THD MM | 0,03% |
| THD MC | 0,1% |
| RIAA-equalisation curve accuracy | 20Hz - 20kHz / max. 0,3dB |
| Subsonic filter | at 18Hz with 24dB/octave |
| Power supply type | DC operation with battery Mains-fed outboard power supply |
| Output voltage | 16V/1.000mA AC |
| Power consumption | 16V/180mA AC |
| DC power source | from ±12 to ±18V DC |
| Dimension W x H x D | 4.1” x 2.9” x 6.3” (103 x 72 x 158mm) |
| Weight | 2.4 lbs. (1.050g) without power supply |