Model 300 Series II

Pre-Amplifier
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.
The 3300 was highly rated by the high end audio press and was favorably compared with tube pre-amps costing much with tube pre-amps costing much more
Phase Linear 3300 Series 2 preamplifier in excellent condition. 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 PL 3000. Please view supplied photos.


Specifications

Frequency response: 10Hz to 135kHz
Total harmonic distortion: 0.003%
Input sensitivity: 2.2mV (MM), 225mV (line)
Signal to noise ratio: 92dB (MM), 98dB (line)
Channel separation: 50dB (line)
Output: 2V (Pre out), 10V (Pre out Max)
Dimensions: 483 x 64 x 256mm
Weight: 4.1kg


Power Amplifier
The 300 power amplifier was introduced in 1979.  It had the Series Two designation as did the D-500, 700 and 400 that year. It ostensibly replaced the 200 Series Two of 1978. The 300 Series Two had the same basic specs as the 200 Series Two, with 120 watts per channel.

The Phase Linear 300 is an amplifier designed to meet the rugged requirements demanded of high level high fidelity systems.

It is capable of amplifying a wide range of frequencies with exceedingly low harmonic and intermodulation distortion and very low noise. Advanced technology incorporated into the 300 Series Two makes possible an amplifier with performance unattainable in the past.

The model 300 is equipped with unique overload protection systems designed to insure safe and reliable operation. If the amplifier is accidentally connected to a short circuit or a very low impedance load, a precision calibrated protection system prevents the output amplifiers from being damaged.

Output to the speakers is controlled by an electronically activated relay. For approximately five seconds after turn-on and immediately after turn-off the speakers are disconnected from the amplifier to avoid any transients applied to the inputs of the amplifier being passed on to the speakers.

The relay activation system will also detect the presence of DC output voltage or unusually large subsonic signals and automatically prevent such potentially dangerous signals from reaching the speakers. Audio information will not cause the speaker relay to open.

Power output: 120 watts per channel into 8Ω (stereo)

Frequency response: 11Hz to 190kHz
Total harmonic distortion: 0.009%
Input sensitivity: 1.4V
Signal to noise ratio: 110dB
Dimensions: 19" x 11" x 3.5"
Weight: 20 lbs

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