MC451 Dual Mono Amplifier
د.إ 67,950.00
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A perfect blend of classic warmth and modern power. This unique amplifier uses both vacuum tube and solid-state technology to deliver the best of both worlds: a rich, detailed sound with incredible authority and control.
The McIntosh MC451 Dual Mono Amplifier is a specialized, single-channel powerhouse designed for precision bi-amplification. It uniquely combines a 300-Watt solid-state amplifier for bass frequencies and a 150-Watt vacuum tube amplifier for midranges and trebles within one chassis, ensuring distinct sonic benefits for each frequency range.
Featuring Hybrid Drive™ Technology, it leverages Autoformer™ for solid-state and Unity Coupled Output Transformer for tube sections, delivering full power into 2, 4, or 8 Ohm loads. Technologies like Power Guard® and Power Guard SGS® protect both sections. Its iconic black glass front panel with visible tubes and a DualView™ Power Output Meter showcases its engineering. With an adjustable crossover and dedicated inputs/outputs, the MC451 offers unparalleled control and sonic purity for discerning audiophiles.
Features
– Designed with bi-amping loudspeakers in mind, the MC451 is comprised of a 150 Watt vacuum tube amplifier and 300 Watt solid state amplifier.
– The vacuum tube section powers midranges and tweeters while the solid state section drives power hungry woofers.
– Uses our Hybrid Driveâ„¢ technology that combines a separate vacuum tube and solid state amplifier onto one single chassis to produce the best possible sound performance.
– The full power is available to almost any speaker regardless if it has 2, 4 or 8 Ohm impedance via our Unity Coupled Circuit output transformer in the vacuum tube section or our Autoformerâ„¢ in the solid state section.
– The large but quiet toroidal transformer generates enough power so that neither amplifier robs power or performance from the other.
– An internal crossover lets you easily adjust the performance of both amplifiers to your listening preferences and speaker specifications.
– Includes our DualViewâ„¢ Power Output Meter that independently displays the real time power reading of each amplifier.
– Full of time tested McIntosh technologies including Power Guard®, Power Guard Screen Grid Sensor® (SGS), Sentry Monitorâ„¢, Power Control, Solid Cinchâ„¢ speaker binding posts, a McIntosh Monogrammed Heatsinkâ„¢, and Power Management System.
Specifications
Power Output per Channel
Solid State section:Â 300 Watts @ 2, 4 or 8 Ohms
Vacuum Tube section:Â 150 Watts @ 2, 4 or 8 Ohms
Number of Channels:1
Total Harmonic Distortion
Solid State section:Â 0.005% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz
Vacuum Tube section:Â 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: 118dB
– 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 Cinchâ„¢ Speaker Binding Posts
GENERAL SPECIFICATIONS
Circuit Configuration
Solid State section:Â Push-Pull Complementary
Vacuum Tube section:Â Unity Coupled
Circuit Design:
– Solid State and Vacuum Tube
Mono Bridge:
– No
Mono Parallel:
– No
Output Type
Solid State section:Â Autoformerâ„¢
Vacuum Tube section:Â Unity Coupled Output Transformer
Meters:
– DualViewâ„¢ Power Output Meter
Meter Light Switch:
– Yes
Balanced Input:
– 2 (1 Solid State or Mono, 1 Vacuum Tube)
Front Panel:
– Glass
Illumination:
– Direct LED
Chassis Style:
– Polished stainless steel & black painted steel
WEIGHTS & DIMENSIONS
Unit Dimensions (W x H x D)
– 17-7/8″ (45.4cm) x 11-13/16″ (30cm) x 21-1/2″ (54.6cm)
Unit Weight
– 133 lbs (60.3 kg)
Shipping Weight
– 159 lbs (72.1 kg)
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