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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 Pre-Amplifiers  
   
2000 Series   3000 Series   4000 Series
Phase Linear 3000 Series Pre-Amplifiers


Phase Linear 3000 Series Two
Photo: courtesy hifinut1 on eBay

The 3000 Series Two Pre-amplifier was introduced in 1978. It had a list price of $499.95. The trend was toward lower profile designs for Phase Linear pre-amps, and the 3000 was only 3.50-inches high. All Series Two pre-amps featured improved specifications from the 1977 line of pre-amps.


While reducing the height of this component, Phase Linear still had to accommodate same number of interconnects and AC receptacles, which proved a challenging packaging design job. The 3000 was available in 1979 also, with a price increase to $579.95.

 

 

The 3300 Series Two pre-amplifier was released in 1980. It had an improved frequency response of 10-135K Hz and phone S/N ratio of 92 db. It had an even lower profile than the 3000. List price was $400.


3300 Series Two back input panel

The 3300 was highly rated by the high end audio press and was favorably compared with tube pre-amps costing much more. A higher performance 3500 pre-amp was also built from 1980 to 1982, naturally having a higher price.


3500 Series Two

The 3500 Series Two Pre-Amplifier was introduced in 1980 and remained in production through 1982. Its specifications were nearly identical to those of the 3300, but had the addition of a moving coil phono section; the 3300 had provision for only moving magnet phono cartridges. List price when introduced was $650 but rose to $725 in 1981. As can be seen the 3300 and 3500 differed considerably in appearance.


 

 


P3600 Pre-Amplifier

The P3600 and P3800 were introduced in 1983 and were the only pre-amplifiers in the Phase Linear line that year. They were completely new designs, bearing little resemblance to previous 3000 series models. The primary difference between the P3600 and P3800 was in the phono section with the P3800 having more impressive specs and a higher price tag.


P3800 Pre-Amplifier

 


P3600 back input panel

The input jacks of these pre-amps included jacks for a CD player, to take advantage of Phase Linear's new 9500 series CD player also introduced in 1983. The price for the P3600 was $450.00 and the P3800 had a list price of $650.00.

 

 
 
 
 
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