The HV-2 was an active vacuum-tube phono pre-preamplifie. It was a simple linear gain stage designed to provide the added gain required by low output moving coil cartridge. Based on the previous model HV-1, the HV2 also used nuvistors - small metal-enclosed triode vacuum tubes noted for their extraordinary linearity and low noise.

These phono pre-preamplifiers featured carefully executed RF Filters and traps to minimize noise and external interference, avoiding the pitfalls common to many other active pre-preamplifiers. The HV2 fitted the proven HV1a circuitry into a more economical package at a reduced price.

V1 - V2: 6CW4 Replacement Tube Set RTHV1

Click above for technical info on this product or to purchase a replacement tube kit.

Specifications:

Input Impedance 100 ohms (phono overload 200 mV at 1kHz)
Gain: 28 dB
Distortion: less than .05% THD or IMD
Response: bandpass 20Hz to more than 20kHz
Tube Complement: 2 X 6CW4
Weight: 6 lbs.