Phase Linear Model 4000 Series One

Data

General

• Manufacturer: Phase Linear
• Model: 4000 Series I
• Years of manufacture: 1973 - 1977
• Made in: USA
• Color: Silver (front: brushed aluminum; housing: black lacquered)
• Original price approx.: 3'900 DM (1974), 3'500 DM (1976)

Technical data:

Special Features

• Designed for outstanding phono sound.
• Very good RIAA preamplifier
• "Autocorrelator" - recording-independent noise reduction process
• "Peak Unlimiter" - amplified reproduction of the impulses reduced during recording
• "Downward Expander" - lowering of quiet passages that were raised during recording (to better separate them from tape noise)
• 110 Volt and 220 Volt versions - mostly available as 110 Volt version - (USA used equipment import)

Remarks

• Other models in the same series:
• Preamplifiers:
• Phase Linear Model 2000 Series One
• Phase Linear Model 4000 Series One

• Power amplifier:
• Phase Linear Model 200
• Phase Linear Model 400
• Phase Linear Model 700 B

• Tuner
• Phase Linear Model 5000

• Noise Reduction, Dynamic Expander:
• Phase Linear Model 1000

Pictures

• Extract from advertisement: Phase Linear Model 4000

• Excerpt from U.S. advertising: Phase Linear Model 5000, Model 4000, Model 700 B.