NAD 160a (1988–1990)

The NAD 160a is a stereo receiver produced from 1988 to 1990 — essentially the NAD 1600 integrated amplifier with a tuner section added, built for the "tuner-amplifier" concept that was popular in Europe in the late 1980s. It launched at roughly 1,500 DM, and NAD positioned it as a budget-minded offering in their lineup.

The interesting engineering story here is the "power envelope tracking" circuit, which adjusts the supply voltage rails according to the music signal — an approach that improves efficiency and reduces heat compared to a fixed-rail design. The output stage uses MOSFETs, and the receiver includes a "power amp direct in" on the rear, letting you use it as a standalone power amplifier. The digital-synthesizer tuner offers 8 FM and 8 AM station presets.

Specs across sources are mostly consistent, though a few figures conflict depending on who published them. The continuous output is 60W into 8Ω (both channels driven), with dynamic power figures of 80W into 8Ω, 120W into 4Ω, 150W into 2Ω, and 180W into 1Ω. Weight is confirmed at 7.8 kg by two sources. Dimensions are 420 × 110 mm wide and tall, with depth given as either 330 mm or 335 mm depending on the source — a minor discrepancy. Total harmonic distortion is listed as 0.02% by one source and <0.03% by another; damping factor similarly ranges from >50 to >200 depending on who measured and under what conditions. Given the conflicting values, treat those figures as approximate rather than definitive.

Hifi-Wiki states the 160a received multiple awards, including a "What Hi-Fi? Product of the Year" mention, though the exact year and details aren't fully captured in the record. The EISA "European Receiver of the Year 1988/89" award sometimes associated with this model actually belongs to the NAD 1600, not the 160a — worth knowing if you're researching either model.

Beyond its listing in period equipment directories and Hifi-Wiki's spec page, little else is documented about the 160a.

Known specs at a glance: