The McIntosh MC901 Dual Mono Amplifier is crafted for true audio enthusiasts who demand precision, power, and beauty. Designed with two dedicated amplifiers in a single chassis — one for speakers and another for mid/high frequencies — the MC901 delivers stunning clarity across the entire musical range. Whether you're building your dream system or enhancing your existing setup, this powerhouse provides exceptional control, rich musical detail, and timeless McIntosh craftsmanship.
Key Features
- Dedicated 300W vacuum tube amplifier for mid/high frequencies and 600W solid-state amplifier for low frequencies
- Unity Coupled Circuit output transformers for superior sonic performance
- Separate power meters and output controls for maximum customization
- Hybrid amplification design blending warmth and precision
- Monumental chassis with blue watt meters and polished stainless steel finish
- Quad-balanced design for ultra-low noise and distortion
- Built-in Power Guard® and Sentry Monitor™ protection circuitry
Why Buy
The McIntosh MC901 is more than an amplifier — it's a lifetime investment in extraordinary sound. Built with passion, engineered with precision, and trusted by audiophiles worldwide, it brings music to life in ways ordinary amplifiers cannot match.
- Hybrid tube/solid-state design ensures warmth without sacrificing power
- Dual-mono configuration offers fine-tuned control over complex speaker systems
- Legendary McIntosh reliability and iconic visual design
Product Specifications
| General Information | |
|---|---|
| Brand | McIntosh |
| Model | MC901 |
| Type | Dual Mono Amplifier |
| Amplifier Class | Tube (Mid/High), Solid-State (Low) |
| Number of Channels | 2 (independent mono amplifiers in one chassis) |
| Power Output | 300W Tube (mid/high) + 600W Solid-State (low) |
| Country of Manufacture | United States |
| Audio | |
| Frequency Response | +0, -0.25dB from 20Hz to 20kHz; +0, -3dB from 10Hz to 100kHz |
| Total Harmonic Distortion (THD) | 0.005% max from 20Hz to 20kHz |
| Signal to Noise Ratio | Solid-State: 120dB; Tube: 112dB |
| Damping Factor | Greater than 40 (solid-state section) |
| Speaker Impedance | 2, 4, or 8 Ohms |
| Dynamic Headroom | 1.2dB |
| Connectivity | |
| Input Types | Balanced XLR, Unbalanced RCA |
| Output Types | Gold-plated speaker binding posts |
| Power Control Input/Output | Yes (for automatic power on/off with connected components) |
| Data Ports | Yes (for McIntosh data communication) |
| Battery & Charging | |
| Battery Powered | No (AC powered) |
| Power Requirements | 120V/230V 50/60Hz, factory configured |
| Power Consumption (Idle) | 180W |
| Power Consumption (Max) | 1,400W |
| Features | |
| Meter Type | Blue Watt Meters (separate for each amplifier) |
| Circuitry Protection | Power Guard®, Sentry Monitor™ |
| Tube Compliment | 8 x KT88, 4 x 12AT7, 2 x 12AX7A |
| Chassis Material | Polished Stainless Steel |
| Cooling System | Thermal controlled fans |
| Physical Specifications | |
| Dimensions (W x H x D) | 17-1/2" (44.45cm) x 13-5/8" (34.6cm) x 29-7/8" (75.9cm) |
| Weight | 180 lbs (81.6 kg) |
| Finish | Gloss black with polished stainless steel chassis |
| LED Illumination | Yes (for meters and logos) |
| In the Box | |
| Included Accessories | Power cable, Manual, Spare fuses, Warranty card |
| Warranty | |
| Warranty Period | 3 Years (with registration) |
| Customer Support Info | Contact McIntosh Labs or Authorized Dealer |