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
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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.