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Phase Linear History
StereoManuals - StereoManuals is owned and operated by Rick Stout. We are hosting the sub-domains show here and intend to keep them up for the benefit of the audio community. Please visit our main site for a huge selection of very high quality audio (and other) manuals, articles, customer system pages and more. We also sponsor two audio discussion groups to assist the audio community. Vintage Technics Database - We host the former www.vintagetechnics.com site since it's domain expired. It has been recoded for better speed and is being updated. Phase Linear History Reference Site -  Anthony Young is a friend and the author the former www.phaselinearhistory.com web site. He lost ownership of the domain name and his original files. With his blessing, we have resurrected the site. Anthony has authored other excellent Reference Sites. StereoManuals has Phase Linear Service Manuals and other literature for most of the popular models. If you do not support us via manuals purchases, please consider making a small donation to help with expenses regarding the Phase Linear History pages.
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Phase Linear Amplifiers  
200 Series   300 Series   400 Series   700 Series   D-500   Pro Series   DRS Series
Phase Linear DRS Series Amplifiers
The DRS (for Dynamic Range Series) amplifiers were introduced at the Consumer Electronics show in January 1982, and reflected the complete break  with Phase Linear's past designs. The design changes in the line of amplifiers were reflected in Phase Linear's other components that year. For the first time there was now an integrated amplifier in the lineup.
DRS 250 Integrated Amplifier

The DRS-250 was Phase Linear's first and only integrated amplifier. It was rated at 50 watts per channel. It was introduced in 1983. It had a list price of $875.00.


DRS 400 Amplifier

Photo: Dan Johnson

The DRS 400 was a power amplifier but did not carry on the tradition of naming the amplifier after its total RMS rating. It had two rail power supplies; low rail was 50 watts and high rail was 200 watts. It's power bandwidth was 10-80kHtz. It had a list price of $695.00.

DRS 900 Amplifier

The DRS 900 Power Amplifier had a low rail rating of 150 watts and a high rail rating of 450 wattsl. The massive appearance of previous high output Phase Linear amps was gone, replaced by a lower profile that still weighed 38 pounds. The LEDs were laid out diagonally for each channel, from lower left to upper right.  The DRS 900 had a list price of $1095.00.

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