McIntosh
McIntosh MC901 Dual Mono Amplifier
Best hybrid amplifier for audiophiles seeking effortless, high-performance bi-amping.
The McIntosh MC901 Dual Mono Amplifier is a revolutionary, one-of-a-kind home audio amplifier designed for bi-amping loudspeakers. It uniquely combines a 300 Watt vacuum tube amplifier with a 600 Watt solid state amplifier on a single chassis. The tube section powers mid and upper drivers, while the solid state section drives woofers, ensuring each component receives optimal power. This synergistic design eliminates the need for external crossovers and simplifies bi-amping, offering unparalleled performance and sound reproduction. The MC901 features an internal, adjustable crossover with accessible controls for personalized sound optimization.
$22000.00
More MC Options
McIntosh MC255
$10000.00
McIntosh MC8207
$7000.00
McIntosh MC207 7-Channel Solid State Amplifier
$4999.00
McIntosh MC1.2KW Power Amplifier
$24995.00
McIntosh MC250
$1499.00
McIntosh MC830 Monoblock Solid State Amplifier
$5500.00
McIntosh MC 2505 Solid-State Amplifier
$3999.00
McIntosh MC1.25KW Monoblock Channel Power Amplifier
$16500.00
McIntosh MC2200
$1899.00
McIntosh MC2155
$2999.00
Owner Satisfaction
4.8
/ 5
Category Rank
37
/ 1684
#37 in Power Amplifiers
Price vs Category Average
+166%
Above average
Power Output
300600
/ W tube + W solid state
Who it's for
- Audiophiles seeking the perfect blend of tube warmth and power
- Owners of demanding speakers requiring massive, effortless power delivery
- Design enthusiasts wanting a centerpiece for their high-end audio system
Who should skip it
- Budget-conscious listeners looking for entry-level or mid-range audio gear
- Homeowners with limited floor space or fragile equipment shelving
- Listeners preferring low-maintenance, cool-running solid-state equipment
Performance breakdown
Bi-amping Integration
Seamlessly bridges tube warmth and solid-state power in one chassis.
Sonic Versatility
Adjustable internal crossovers allow for precise tuning of your speaker response.
Power Delivery
Massive headroom ensures effortless dynamics even with the most demanding speakers.
Build Integrity
Iconic industrial design paired with legendary McIntosh internal component reliability.
Setup Complexity
Simplifies complex bi-amping configurations into a single, manageable footprint.
Signal Purity
Independent power supplies eliminate interference between high and low frequency stages.
Key Specs
Power Output
300W tube + 600W solid state
Impedance
2, 4, or 8 Ohms
Amplifier Class
Tube and Solid State
Application Type
Bi-amping
Number of Channels
2 (Dual Mono)
Features
- Combines vacuum tube and solid-state amplification in one unit
- Dedicated power for mid/high drivers (tube) and woofers (solid-state)
- Internal, adjustable crossover for optimized bi-amping
- Unity Coupled Circuit and Autoformer™ technologies for consistent power delivery
- Independent power supplies for each amplifier section
- Simplifies bi-amping setup compared to using separate amplifiers
What customers say
Customers consistently praise the McIntosh MC901 Dual Mono Amplifier for its unparalleled sound quality and iconic design. Enthusiasts describe a truly immersive audio experience, highlighting the amplifier's ability to reproduce music with remarkable clarity, power, and emotional depth. The amplifier's robust build and classic McIntosh aesthetic, featuring the distinctive blue meters, are frequently celebrated as hallmarks of exceptional craftsmanship and timeless elegance, solidifying its status as a premium audio investment.
Know before you buy
The MC901 integrates both tube and solid-state amplification into a single chassis, which eliminates the need for external crossovers and complex cabling. By housing both sections in one unit with independent power supplies, it ensures perfect synchronization and simplifies the bi-amping process significantly.
The built-in adjustable crossover allows you to precisely define the frequency range sent to the tube and solid-state sections. You can fine-tune these settings using the accessible controls on the unit to match the specific requirements of your loudspeaker's drivers.
Vacuum tubes are renowned for their warm, natural, and detailed sound reproduction, which is ideal for the delicate mid and high-frequency drivers. By dedicating the 300-watt tube section to these drivers, the MC901 delivers a more nuanced and lifelike performance.
Yes, the MC901 is designed to deliver its full power into 2, 4, or 8-ohm loads. Thanks to McIntosh’s Autoformer technology, the amplifier maintains consistent power delivery regardless of the impedance of your connected loudspeakers.
The MC901 is specifically engineered for bi-amping applications where the loudspeaker has separate inputs for the woofer and the mid/high sections. It is not intended for use with speakers that only feature a single set of binding posts.
The 600-watt solid-state section provides the high current and power necessary to drive woofers with authority and control. This ensures deep, tight, and impactful bass response that complements the refined character of the tube-powered mid and high-frequency section.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$22000