A Stunning Sound Experience.
The MC451 Dual Mono Amplifier joins the MC901 in offering the ultimate solution to bi-amping a loudspeaker. Like the MC901, the MC451 uses our Hybrid Drive™ technology that combines a separate vacuum tube and solid state amplifier onto one single chassis to produce the best possible sound performance from a bi-ampable speaker. Unlike the larger MC901, the MC451 has a more conventional McIntosh form factor and size, allowing it to fit into home audio systems, racks, and furniture more easily. Adding a pair of MC451s to your stereo system will allow your prized speakers to perform like never before.
BRAND: McIntosh
SERIES: MC451 1-Channel Dual Mono Amplifier
TYPE: Dual Mono Amplifier
OVERVIEW
- The MC451 Dual Mono Amplifier is an unconventional amplifier that delivers a stunning sound experience.
- 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 Drive™ 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 Autoformer™ 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 DualView™ 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 Monitor™, Power Control, Solid Cinch™ speaker binding posts, a McIntosh Monogrammed Heatsink™, and Power Management System.
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A pair of MC451 Dual Mono Amplifiers powering a home audio system with bi-ampable XRT1.1K speakers.
TECHNICAL SPECIFICATIONS
Power Output
Solid State section:
300 Watts into 2, 4 or 8 Ohms
Vacuum Tube section:
150 Watts into 2, 4 or 8 Ohms
Total Harmonic Distortion
Solid State section:
0.005% maximum from 20Hz to 20kHz
Vacuum Tube section:
0.5% maximum from 20Hz to 20kHz
Signal to Noise Ratio
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
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
Inputs
2 Balanced
2 Unbalanced
(1 Solid State or Mono, 1 Vacuum Tube)
Overall Dimensions (W x H x D)
17-7/8″ (45.4cm) x 11-13/16″ (30cm) x 21-1/2″ (54.6cm)
Weight
133 lbs (60.3 kg) net,
159 lbs (72.1 kg) in shipping carton
