NAD 310 (circa 1995)
Little is documented about the NAD 310 through official channels, but period reviews fill in the key details. This integrated amplifier appeared around 1995 with a list price of about $200. HiFi/Stereo (April 1995, p.83) described it as built around a deliberately "super-simple" circuit - roughly half the components of a conventional amplifier. The output stage paired a single MOSFET with a bipolar transistor, which was an unusual topology at this price.
Rated output was modest at 20 watts per channel with less than 0.05% distortion. The amplifier also claimed 1-ohm stability and 3 dB of dynamic headroom. HiFi/Stereo (April 1996, p.42) later confirmed the performance specs in bench testing and singled out the very low noise floor: -96 dB relative to 1 watt. Front-panel tape-monitor buttons and rear-panel tape play/record RCA jacks were provided, alongside the usual line inputs. No production dates or exact run length are recorded, and the 310 does not appear to have been a long-lived model in NAD's lineup.
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