McIntosh MC901 Dual Mono Amplifier

MC901

New product

  • The ultimate solution for bi-amping loudspeakers: 300 Watt vacuum tube amplifier and 600 Watt solid state amplifier on one chassis
  • Vacuum tube section powers mid and upper drivers
  • Solid state section drives power hungry woofers
  • DualView™ Power Output Meter

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$9,800.00

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McIntosh MC2KW 1-Channel Amplifier

McIntosh 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's 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 Dual Mono Amplifier.

McIntosh MC901 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. Adding to the uniqueness is that 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.

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

CONTROL

  • Remote Power Control
    Yes
  • Multi-Channel DB25 Cable
    N/A

CONNECTIVITY

  • 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
    180 lbs (81.6 kg)
  • Shipping Weight
    200 lbs (90.7 kg)

Reviews

Grade 
2021-02-20

McIntosh MC901 Dual Mono Amplifier

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McIntosh MC901 Dual Mono Amplifier

McIntosh MC901 Dual Mono Amplifier

  • The ultimate solution for bi-amping loudspeakers: 300 Watt vacuum tube amplifier and 600 Watt solid state amplifier on one chassis
  • Vacuum tube section powers mid and upper drivers
  • Solid state section drives power hungry woofers
  • DualView™ Power Output Meter