McIntosh MC-7205
The MC-7205 is a five-channel solid-state power amplifier from McIntosh's home-theater era. It was built in the United States and sold at an original price of $4,500. Each of its five channels is rated at a minimum sine-wave continuous average output of 120 watts into 8 ohms or 200 watts into 4 ohms with all channels driven, across the 20 Hz to 20 kHz band. McIntosh's own literature calls it "over 600 watts of McIntosh power." The amp carries the company's usual protection circuitry - Power Guard against clipping and Sentry Monitor against fault conditions - along with autoformers for consistent output across all five channels. It was designed to pair with the MX132 preamp/processor, and the two pass power on/off data over a cable link. Separate power-control jacks handle the same job when the pieces are used apart.
On the test bench, Audio (January 2000, p.66) reported ruler-flat frequency response and THD+N around 0.004% at 50 and 100 watts per channel across most of the spectrum. That fits the manufacturer's own claim of under 0.005% distortion at rated output. Beyond the specs, the record on this model is mostly a paper trail: an owner's manual, a service manual, a brochure naming the MX132 and MC7205 as the foundation of a McIntosh home-theater system, and at least one owner who bought a unit new in 2001 and has run it for many thousands of hours of 5.1 duty. Production years are not firmly established. The 2001 purchase date is the only anchor in the surviving record. THX certification appears in page and listing titles for the model but is not explicitly confirmed in the body text the Archive has captured, so it is likely rather than certain.
- Type: Five-channel solid-state power amplifier
- Power output: 120W per channel into 8Ω, 200W into 4Ω (all channels driven, 20Hz–20kHz)
- Distortion: <0.005% at rated output (manufacturer); ~0.004% THD+N at 50–100W per channel (per Audio, Jan 2000)
- Features: Power Guard clipping protection, Sentry Monitor, autoformers
- Original price: $4,500
- Country of manufacture: United States
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