McIntosh - MC901 Dual Monoblock Amplifier

McIntosh - MC901 Dual Monoblock Amplifier

The McIntosh MC901 Dual Monoblock Amplifier is a groundbreaking innovation tailored for audiophiles who seek the best of both worlds: the sweet sound of tubes and the relentless power of solid-state amplification. Uniquely designed as a dual mono block amplifier, the MC901 is perfect for the most sophisticated high-end audio systems, combining unparalleled power with musical finesse.

Build Quality and Design

The MC901 features McIntosh's hallmark design, including a robust stainless steel chassis, the iconic black glass front panel, and the unmistakable blue watt meters. This dual-component design — one tube and one solid-state section within a single chassis — not only makes a striking visual statement but also ensures that each section operates optimally without interference from the other. This design is built to last, reflecting McIntosh’s commitment to durability and craftsmanship.

Circuit Design

Each MC901 unit features two amplification sections: a 300-watt vacuum tube amplifier for mid and upper frequencies and a 600-watt solid-state amplifier for lower frequencies. This setup ensures that each part of the audio spectrum is powered in the most effective manner possible. The vacuum tube section uses eight KT88 output tubes, two 12AX7A and one 12AT7 tube, while the solid-state section delivers robust power with minimal distortion, thanks to its advanced closed-loop digital switching.

Key Specifications

• Power Output: Solid State section: 600 Watts @ 2, 4 or 8 Ohms
  Vacuum Tube section: 300 Watts @ 2, 4 or 8 Ohms
• Tubes: 8 x KT88, 2 x 12AX7A, 1 x 12AT7
• Total Harmonic Distortion (THD): 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
• 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
• Dimensions: (W x H x D)17-17/32" (44.5cm) x 13-3/8" (34cm) x 29-17/32" (75cm)
• Weight: 180 lbs (81.6 kg)

Sound Quality

The MC901 excels in delivering a organic, detailed, and dynamically rich sound. The tube section enhances the clarity and warmth of mid and high frequencies, while the solid-state section provides powerful, precise bass response. The combination ensures a balanced, lifelike soundstage that brings music to life with depth and emotion.

Why Choose the McIntosh MC901?

For audiophiles looking for an amplifier that can drive any speaker with ease while providing a harmonious blend of tube warmth and solid-state precision, the McIntosh MC901 is unmatched. It's a state-of-the-art solution for those who accept no compromise in the pursuit of perfect sound.