McIntosh MC451
Dual Mono Amplifier
Includes our Hybrid Drive™ technology that uses the best of vacuum tubes and solid state to produce the best sound performance
Designed with bi-amping loudspeakers in mind
150 Watt vacuum tube amplifier and 300 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
PRODUCT DETAILS
ELECTRONIC SPECIFICATIONS
Power Output per Channel-
Solid State section: 300 Watts @ 2, 4 or 8 Ohms
Vacuum Tube section: 150 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: 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
CONNECTIVITY
Speaker Binding Post Type
Patented Solid Cinch™ Speaker Binding Posts
GENERAL SPECIFICATIONS
Circuit Configuration-
Solid State section: Push-Pull Complementary
Vacuum Tube section: Unity Coupled
Circuit Design
Solid State and Vacuum Tube- Mono Bridge
Output Type-
Solid State section: Autoformer™
Vacuum Tube section: Unity Coupled Output Transformer
Meters- DualView™ 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)
