{"id":56198,"date":"2026-03-11T17:00:36","date_gmt":"2026-03-11T15:00:36","guid":{"rendered":"https:\/\/hifimarket.ee\/product\/mcintosh-mc901-monoblock-power-amplifier\/"},"modified":"2026-03-11T17:00:36","modified_gmt":"2026-03-11T15:00:36","slug":"mcintosh-mc901-monoblock-power-amplifier","status":"publish","type":"product","link":"https:\/\/hifimarket.ee\/et\/toode\/mcintosh-mc901-monoblock-power-amplifier\/","title":{"rendered":"McIntosh MC901 Monoblock Power Amplifier"},"content":{"rendered":"

The MC901<\/strong> is a monoblock amplifier that drives a single speaker. But it is unlike any other monoblock amplifier. What makes the MC901<\/strong> so unique is that it\u2019s two amplifiers combined into one. Adding to the uniqueness is that each amplifier is of differing design philosophies: the MC901<\/strong> consists of a 300 Watt vacuum tube amplifier attached to a 600 Watt solid state amplifier on one unified chassis.<\/p>\n

The MC901<\/strong> includes our Hybrid Drive\u2122 technology that uses the best of vacuum tubes and solid state to produce the best sound performance. The 300 Watt vacuum tube portion powers the speaker\u2019s mid and upper drivers via eight KT88 output tubes, plus four 12AT7 and two 12AX7A signal tubes; the solid state section delivers 600 Watts of dedicated power to the power hungry woofers. The 300 Watt vacuum tube amp in the MC901<\/strong> uses our patented Unity Coupled Circuit output transformer \u2013 the same technology McIntosh<\/strong> was founded on in 1949 \u2013 to deliver its full 300 Watts into almost any speaker regardless if it has 2, 4 or 8 Ohm impedance. Similarly, the 600 Watt solid state amp delivers its full 600 Watts into a 2, 4 or 8 Ohm impedance speaker via our Autoformer\u2122 technology.<\/p>\n

Vacuum tubes do not perform at their best when they are amplifying lower frequencies that are not being used by the loudspeaker. With the MC901<\/strong>, the vacuum tube amp will not be burdened with low end reproduction as the solid state section will drive these frequencies. The two amplifier sections of the MC901<\/strong> are designed to work together in a synergistic relationship and are specifically engineered to assure that each section only amplifies its intended frequencies. Each amplifier section has its own discrete power supply so neither siphons power or performance away from the other. All of this results in easy bi-amping with unparalleled performance and sound reproduction from your speakers.<\/p>\n

Prior to the MC901<\/strong>, bi-amping a speaker required two separate amplifiers. It also required an external crossover, along with a lot of trial and error, to properly configure the two detached amplifiers so they worked together as best as possible. The MC901<\/strong> solves this issue thanks to its internal, adjustable crossover with the controls easily accessible on the top of the unit. These adjustable crossover filters allow you to optimize the performance of both amplifier sections to your listening preferences. Relative gain levels for each amplifier section can be adjusted from -6dB to +3dB. A direct feed can also be connected to each amplifier section, thus bypassing the filters.<\/p>\n

Like virtually all McIntosh<\/strong> amplifiers, the MC901<\/strong> features an iconic \u201cMcIntosh Blue<\/strong>\u201d Watt meter, which has come to be recognized around the world as a symbol of quality home audio. And just like the MC901<\/strong> itself is a new design, so too is its meter with the introduction of our new DualView\u2122 Power Output Meter. The DualView meter features two of our traditional, fast responding mechanical meters stacked above and below each other in a single meter window; one meter is dedicated to the 300 Watt vacuum tube amp and the other to the 600 Watt solid state amp. Each meter operates independently of the other and displays the real time power reading of each amplifier section.<\/p>\n

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McIntosh<\/strong> has been perfecting vacuum tube amplifiers since the 1940s and solid state amplifiers since the 1960s. Our amplifiers have been used at many historic events including presidential inaugurations and Woodstock, as well as in landmark sound systems like the Grateful Dead\u2019s Wall of Sound and Despacio. From that heritage comes a truly one-of-a-kind home audio amplifier only we could dream of, design and build as the ultimate solution for bi-amping loudspeakers: the McIntosh MC901<\/strong> Dual Mono Power Amplifier.<\/p>\n<\/div>\n

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