Panasonic A-310 (circa 1998)
Surviving documentation on the Panasonic A-310 is thin. In the period press it appears under a fuller name: the Panasonic DVD-A310, a DVD player with built-in Dolby Digital. Audio (May 1998, p.38) profiled the player and noted that it had a second set of direct audio/video outputs, so a second TV could be driven without going through a VCR. Bench measurements in the same magazine's May 1998 issue (p.44) showed a PCM line output of 2.13 V with channel balance at ±0 dB. Dolby Digital channel balance came in within +0/-0.19 dB of the left front. The reviewer was impressed enough by the player's DACs to audition them thoroughly, and considered it a more than acceptable replacement for a dedicated CD player.
Known specifications from the period measurement:
- PCM line output level: 2.13 V
- Line output impedance: 1.035 kΩ
- Channel balance: ±0 dB
- Dolby Digital (AC-3) channel balance, relative to left front: within +0 to –0.19 dB
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