Phase Linear PLAX 60
The PLAX 60 is a little-documented Phase Linear product. The company built its name in the 1970s on big home amplifiers like the 400 and 700. The PLAX 60 is a 2-channel car amplifier rated at 60 watts RMS, so Phase Linear did eventually build for the car. Beyond that, not much information survives.
Here is what the record shows. The PLAX 60 is a 2-channel ("2CH") car amplifier with 60W RMS output. It has a low-pass filter adjustable from 50 Hz to 500 Hz, a phase switch for optimizing the sound stage, and a subsonic filter that cuts low-frequency noise below 20 Hz. A part number "plax60" appears in listings, with a price range of $17.97 - $50.00 cited on a spec page. Whether that reflects parts, used pricing, or something else is unclear. One Russian reseller listing offers a PLAX 60 at 10,490₽.
No production years, original retail price, dimensions, or detailed electrical specs (THD, S/N ratio, impedance) have surfaced. No owner reviews or sound-quality opinions exist in the research. No common problems or failure modes are documented for this model. A service manual for the "PHASE LINEAR PLAX60" is available as a PDF download from servicemanuals.net.
Known specs:
- Type: 2-channel car power amplifier
- RMS power: 60W
- Low-pass filter: adjustable 50 Hz–500 Hz
- Phase switch for sound stage optimization
- Subsonic filter below 20 Hz
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