Solid State Preamp Reviews

Description: Frequency response: DC–100kHz, –0.2dB, RIAA equalization ±0.25dB (20Hz–20kHz). Distortion: line stage, 0.007%; phono stage, moving-magnet, 0.005%, moving-coil, 0.05%. Gain: phono stage, moving-magnet, 37.7dB; moving-coil, 58.5dB; high-level, 20.57dB. Input impedance: line stage, 20k ohms; phono stage selectable, 32.2 ohms, 47.5 ohms, 100 ohms, or 47k ohms in parallel with 50pF, 100pF, 200pF, or 250pF. Noise: phono stage, moving-magnet, –80dBA ref. 5mV input; moving-coil, –66dBA ref. 1mV input; line stage, –112dB ref. maximum output. Output impedance: 100 ohms. Absolute polarity: correct for all inputs.
Dimensions: 19" W by 2.2" H by 10.3" D. External power-supply dimensions: 6.4" W by 2.7" H by 8.5" D.
Price: $2595 (1991); no longer available (2011). Approximate number of dealers: 50.
Manufacturer: Threshold, Sacramento, CA 95842 (1991); Threshold Audio, Inc., PO Box 41736, Houston, TX 77241. Tel: (713) 466-1411. Fax: (713) 895-8757. Web: www.threshold-audio.com (2011).