Hitachi V-300
The Hitachi PCM-V300 is listed in this archive as the V-300. It is a two-channel PCM digital audio recorder from the early 1980s. It converted audio into a 14-bit, 44.056 kHz digital signal and encoded that inside an NTSC video waveform (EIAJ standard EIAJ SIC-007). The signal went onto standard VHS tape. A T-120 cassette gave two hours of recording time.
Audio (June 1982, p.42) published the full manufacturer's specifications. Frequency response is 20 Hz to 20 kHz ±0.5 dB. Dynamic range is better than 85 dB. Harmonic distortion is below 0.01% at 1 kHz, and wow and flutter are below measurable range. Line input is rated at 300 mV and line output at 1.0 V. The unit tested in the same issue (p.45) had pairs of line-in and line-out jacks on the rear panel. The reviewer found the clarity and purity of the sound through reference headphones hard to describe properly, which is high praise from a publication that usually stayed measured.
Documentation beyond that June 1982 review is thin. No pricing, sales history, or later coverage turned up in the Archive's source material. The model seems to be one of the less-remembered early PCM video-format recorders.
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