NAD 7240 (1987–1988)

It was built in Japan and sold for roughly $379 in the US at launch and around 998 DM in Germany. By mid-1989 it was listed at $389. Those three figures are about the only paper trail the model has. The 7240 was never heavily reviewed, so its record rests on price listings and the surviving service manual.

Electrically, the 7240 was essentially a NAD 3240 integrated amplifier with a tuner section added. It delivered 40 watts per channel and incorporated NAD’s Power Envelope design, which allowed the amplifier to deliver significantly higher wattage on musical transients — a practical trick that gave modest continuous-rated amps real headroom on dynamic peaks. The FM tuner section was specified for 30 Hz–15 kHz ±0.5 dB, with a slew factor greater than 50. The service manual gives dimensions of 420 × 108 × 380 mm and a weight of 7.48 kg (16.5 lbs).

Front-panel controls include Power, Phones, Speaker Selector, Bass, Treble, a Bass EQ switch, and an Infrasone (subsonic) Filter Off switch. It is the sensible, no-frills layout NAD was known for.

Surviving examples turn up on the used market for around $100 in North America, though condition varies considerably. A few YouTube troubleshooting videos have titles like "NAD 7240 Receiver Totally Dead" and "was like a kick in the NADs." They suggest power supply or amplifier-stage failures are known problems. A service manual is available through HiFi Engine and AudioCircuit, which is a real practical help for anyone keeping one alive. Detail on common component failures is thin beyond those video titles, so a buyer should expect some risk.

The 7240 is a relatively obscure model, overshadowed by the 3020 series and later NAD designs. It shows the brand's late-80s receiver approach: honest power, useful transient headroom, and a straightforward feature set. Most of what is known about it comes from the service manual and period price guides rather than editorial coverage.

Known Specifications

Type: AM/FM stereo receiver
Power output: 40 W/ch (service manual)
FM frequency response: 30 Hz–15 kHz ±0.5 dB (service manual)
Slew factor: > 50 (service manual)
Dimensions: 420 × 108 × 380 mm
Weight: 7.48 kg (16.5 lbs)
Production: 1987–1988
Original price (US): $379 (Dec 1988), $385–$389 (1989); Germany: approx. 998 DM
Made in: Japan
Design basis: NAD 3240 integrated amplifier + tuner