Phono Preamp Reviews

VTSP-1 tube preamplifier: 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.
Serial number of unit reviewed: LHE105.
Price: $3650. Warranty: 2 years, parts & labor; tubes, 90 days.

VTPH-1MC FET/tube phono preamplifier: Tube complement: four 12AX7WB, one 12AT7WC. Frequency range: 1Hz->100kHz. RIAA accuracy: 20Hz-20kHz, ±0.1dB. Voltage gain: 66dB at 1kHz (44dB, moving-magnet version), channels matched to within 0.05dB. Input sensitivity: N/S. Signal/Noise: 80dB, A-weighted, inputs shorted, AC polarity set. Distortion: N/S. Output impedance: 500 ohms unbalanced. Input impedance: 47k ohms, 100pF (optional load resistors supplied). Rated output capability: N/S.
Serial number of unit reviewed: JA0060.
Dimensions: 19" W by 3.5" H by 10" D.
Price: $3250; moving-magnet only, $2750.

Approximate number of dealers: 10.
Manufacturer: Herron Audio, Division of Herron Engineering, Inc., 12685 Dorsett Road, Suite 138, St. Louis, MO 63043. Tel: (314) 434-5416. Fax: (314) 434-6629. E-mail: keith@herronaudio.com. Web: www.herronaudio.com.