Stax 80M
Documentation on the Stax 80M is thin. What survives in this archive is mostly Stax's own advertising. The full model name appears as the DA-80M(a) - a mono Class A power amplifier rated at 90 W RMS. Ads running in High Fidelity (November 1978, p.23) claimed the "first commercial class A's" had been improved with a faster slew rate and better transient coupling, with IM/HD of less than 0.007% at 20 kHz. The same copy pitched the DA-80M(a) as "the absolute ultimate subwoofer amp," noting that a pair "does just about anything." A stereo sibling, the DA-80(a), sold alongside it with a dual power supply. Audio (October 1978, p.76) listed the DA-80 in an amplifier roundup.
Known at a glance:
- Stax DA-80M(a), mono Class A power amplifier
- 90 W RMS output
- Advertised for subwoofer duty; "a pair does just about anything"
- Related stereo model: DA-80(a), dual power supply
No independent lab test or full spec sheet is in the record here. The exact production years and original price are not documented.
eBay Listings
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.