Now comes the Mcintosh MC451, yet another monoblock consisting of both valve and solid-state amplification. The tube amplifier, which has adjustable levels (-6dB to +3dB), has three duotriodes on the input and four transformer-coupled KT88 tubes on the output that provide 150W in 2, 4 and 8 ohms.
The solid state amplifier has the company’s special autoformer technology on the output and delivers 300W in 2, 4 and 8 ohms, and both amplifiers are designed to drive speakers in parallel: either as a bi-wire without an active filter, where the transistor section is connected to the bass and the tubes to the mid-range/treble. But the amplifier also has an integrated and adjustable active filter so that you can bypass the passive filters in the speakers for even cleaner and more controlled sound.
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.
McIntoshLabs
Features:
- Includes 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
