T973

About the T973

The NAD T973 is a seven-channel home theater power amplifier designed for high-performance multichannel systems and custom installations. It is rated at 140 watts continuous power per channel into 8 ohms with all seven channels driven from 20 Hz to 20 kHz at 0.03% THD, and is stable down to 2-ohm loads. The design uses true mono-block modular construction (one independent amplifier module per channel sharing a common power supply), with short signal paths to minimize crosstalk and inter-channel interference. A high-current Holmgren toroidal power transformer and robust output stage provide strong dynamic headroom and the ability to drive difficult, low-impedance loudspeakers. The input stage uses low-noise, wide-bandwidth circuitry, and each channel provides its own input gain control to accommodate differences in speaker sensitivity or source levels. Protection circuitry guards against short circuits, overheating, and DC faults, while NAD’s Soft Clipping circuitry can be engaged to gently limit overload and reduce the risk of speaker damage at very high listening levels. Connectivity includes unbalanced RCA inputs, 12V trigger input for system integration, and heavy-duty, gold-plated binding post speaker terminals. The T973’s specified performance includes a frequency response of 2 Hz–100 kHz, signal-to-noise ratio up to 125 dB (at rated power, A-weighted), damping factor over 300 (ref. 8 ohms, 50 Hz), and rated input sensitivity of 1.1 V. The chassis measures approximately 435 x 180 x 453 mm and weighs about 31 kg, with substantial heatsinking and a layout optimized for thermal efficiency and long-term reliability.