Home Theater Systems Buying Guide
McIntosh MC901 Dual Mono Amplifier Overview
McIntosh has been perfecting vacuum tube amplifiers since the 1940s, and solid-state amplifiers since the 1960s. McIntosh amplifiers have been used at many historic events, including presidential inaugurations and Woodstock, as well as in landmark sound systems like the Grateful Dead's Wall of Sound and Despacio. From that heritage comes a truly one-of-a-kind home audio amplifier only they could dream of, design, and build as the ultimate solution for bi-amping loudspeakers: the McIntosh MC901 Dual Mono Amplifier.
The MC901 is a monoblock amplifier that drives a single speaker. But it is unlike any other monoblock amplifier. What makes the MC901 so unique is that it's two amplifiers combined into one. Each amplifier is of differing design philosophies: the MC901 consists of a 300 Watt vacuum tube amplifier attached to a 600 Watt solid-state amplifier on one unified chassis.
Product Information
Specifications
Electronic Specifications
- Power Output per Channel
- Solid State section: 600 Watts @ 2, 4 or 8 Ohms
- Vacuum Tube section: 300 Watts @ 2, 4 or 8 Ohms
- Number of Channels: 1
- Total Harmonic Distortion
- Solid State section: 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz
- Vacuum Tube section: 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz
- S/N below rated output
- Solid State section: 122dB
- Vacuum Tube section: 112dB
- Dynamic Headroom
- Solid State section: 2.5dB
- Vacuum Tube section: 1.2dB
- Damping Factor
- Solid State section: >40
- Vacuum Tube section: >18
- Rated Power Band
- Solid State section: 20Hz to 20kHz
- Vacuum Tube section: 20Hz to 20kHz
- Frequency Response
- Solid State section: +0, -0.25dB from 20Hz to 20,000Hz; +0, -3dB from 10Hz to 100,000Hz
- Vacuum Tube section: +0, -0.5dB from 20Hz to 20,000Hz; +0, -3dB from 10Hz to 70,000Hz
Connectivity
- Remote Power Control: Yes
- Multi-Channel DB25 Cable: N/A
- Speaker Binding Post Type: Patented Solid Cinch™ Speaker Binding Posts
General Specifications
- Circuit Configuration:
- Solid State section: Quad Balanced
- Vacuum Tube section: Unity Coupled
- Circuit Design: Solid State and Vacuum Tube
- Mono Bridge: No
- Mono Parallel: No
- Output Type: Solid State section: Autoformer
- Vacuum Tube section: Unity Coupled Output Transformer
- Meters: DualView™ Power Output Meter
- Meter Light Switch: Yes
- Balanced Input: 3 (1 Solid State, 1 Vacuum Tube, 1 Composite)
- Front Panel: Glass
- Illumination: Direct LED
- Chassis Style: Polished stainless steel & black painted steel
Weights & Dimensions
- Dimensions (W x H x D): 17-1/2" (44.45cm) x 13-1/4" (33.7cm) (including feet) x 29-1/2" (74.9m)
- Weight: 170 lbs (77.1 kg)
Reviews
Customer Reviews for McIntosh MC901 Dual Mono Amplifier
Q&A
Customer Q & A
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- Inaccurate
- Mike K Staff on Oct 20, 2020
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- Inaccurate
- Mike K Staff on Aug 26, 2020
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- Mike K Staff on Jun 23, 2020
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- Mike K Staff on Apr 21, 2020
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- Inaccurate
- Mike K Staff on Mar 31, 2020