Herron VTSP-1

Herron Audio VTSP-1 Tube Stereo Preamplifier If you're looking for a minimum-hassle, tube-based line stage that's well-built, flexible (six inputs, mono switch), and engineered to pay careful attention to the purity of the incoming low-voltage, low-current signal, the Herron VTSP-1 merits serious attention---regardless of how much you're prepared to spend. It's that accomplished." - Stereophile

Tube complement: four 6922s. Frequency range: 1Hz->100kHz. Frequency response: 20Hz-20kHz, +/-0.1dB (volume control at 9 o'clock). Maximum voltage gain: 14dB. Hum & noise: N/S. Distortion: N/S. Output impedance: 100 ohms nominal at 1kHz. Input impedance: 100k ohms. Dimensions: 19" W by 3.5" H by 10" D.