The Tube Box II sets the standard for a cost effective high-performance phono stage. This product is built using the same high-grade metal chassis shared with the rest of the Mk II product line. This all metal case features great shielding from both vibration and electromagnetic interference. Selectable MM and MC modes as well as a sub-sonic filter via rear panel mounted switches. Gain is rated at 60dB (MC) and is derived by a pair of ECC83 (12AX7A) tubes.

Specifications:
Input Impedance MM: 47K ohms / 120 pF
Input Impedance MC: 100 ohms / 120 pF
Output Voltage MM: 300mV / 1kHz at 3mV/1kHz at MM input
Gain MM: 40dB
Output Voltage MC: 300mV / 1kHz at 0.3mV/1kHz at MC input
Gain MC: 60dB
Maximum Output: 9.5V (1kHz)
Signal-to-Noise Ratio MM: 84dB
Signal-to-Noise Ratio MC: 67dB
Total Harmonic Distortion: <0.05% MM / <0.08% MC
RIAA Curve Accuracy: > 0.5dB / 20Hz-20kHz
Power Supply: 16V/200-1000mA AC
Power Consumption: 16VAC/30mA
Dimensions: (WDH) 4'' x 5.5'' x 3''