Black Cube Statement This is a full function entry-level phonostage that offers adjustable gain and loading that is accessible from the bottom of the unit. Works well with both high output MM and low output MC. Audio Section Selectable Gain: 31dB, 41dB, 51dB, 61dB. Input Impedance: selectable 47k, 1000 or 100 ohms. Free slot for custom impedance load. Input capacitance: 100pF. Passive RIAA-filter with high performance MKP foil capacitors. Soft-Bass-Rolloff filter (6dB/Okt @ 60Hz) jumper selectable. DC-Output jumpers. Double-sided audio board layout for optimal parts placement and trace routing. Burr Brown audio grade operational amplifiers. Gold plated RCA audio connectors. External AC power supply. Nonmagnetic case (aluminum). website download product brochures