Yamaha AVC-50

Documentation on the Yamaha AVC-50 is thin. What survives comes mostly from period advertising and a single HiFI-Stereo test report (January 1987, p.45). That review, by Julian Hirsch, treated the AVC-50 as an integrated audio/video amplifier - a control center for an entire system, not just a plain amp. It offered four video inputs and six audio inputs. The included remote could manage other Yamaha interactive components (tuner, turntable, cassette deck, CD player). The test report measured it delivering 105 watts into 2 ohms. It also noted a frequency response broadly maximized in the 100-300 Hz range and around 5,000 Hz, with nulls at 20, 1,000, and 17,000 Hz. Audio outputs were separate for video and audio sources, so a video program could be recorded or dubbed with a different audio track.

Beyond that review and a handful of ad-like descriptions in Audio (February 1987, p.87) and HiFI-Stereo (June 1986, p.35), little else is recorded. No production years, original price, or full spec sheet are known. The AVC-50 appears to have been Yamaha's attempt at a unified A/V command center in the mid-1980s, before home-theater receivers became common.

Type: Integrated audio/video amplifier
Inputs: 4 video, 6 audio
Power (into 2 ohms): 105 watts (per Hirsch test)
Remote control: included, compatible with other Yamaha interactive components
Features: separate audio/video outputs for dubbing