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Experience rich, detailed sound from a brand audiophiles trust. The McIntosh MSA5500 is a 5-channel solid-state amplifier designed to deliver clarity, control, and power to your home theatre or multi-room audio setup. With 150 watts per channel into 8 ohms or 300 watts into 4 ohms, this amp drives even demanding speakers with confidence. Whether you're building a dedicated listening room or enhancing your surround sound, the MSA5500 ensures consistent performance, low distortion, and the warmth McIntosh is known for. Its sleek chassis, iconic blue watt meters, and robust output stage combine professional-grade engineering with timeless style. Designed to run cool and perform quietly, this amplifier is ideal for high-end systems where space and sound quality both matter. The MSA5500 is a powerful solution for those who want uncompromising audio without sacrificing aesthetics or reliability.

Key Features

  • 5-channel amplifier with 150W per channel (8 ohms) or 300W (4 ohms)
  • McIntosh Autoformers ensure optimal impedance matching
  • Iconic dual blue watt meters provide real-time output monitoring
  • Balanced and unbalanced inputs for flexible system integration
  • Power Guard® technology prevents speaker-damaging clipping
  • Sentry Monitor™ ensures safe, reliable operation under all loads
  • Classic McIntosh industrial design with glass front panel and aluminum end caps

Why Buy

If you’re serious about home theatre or multi-zone audio, the McIntosh MSA5500 brings muscle, finesse, and signature styling to your system. Built to deliver clean, powerful sound across five channels, it’s the heart of any premium setup.

  • Delivers consistent high-power output for all five channels
  • McIntosh reliability and design excellence in a compact footprint
  • Protects your investment with advanced safety features

Product Specifications

McIntosh MSA5500 5-Channel Solid State Power Amplifier - Specifications
Product Type 5-Channel Solid State Power Amplifier
Brand McIntosh
Model MSA5500
Amplification & Output
Amplifier Class Solid State
Channels 5
Power Output (8Ω) 150 Watts per channel
Power Output (4Ω) 300 Watts per channel
Frequency Response 20 Hz - 20 kHz (+0, -0.25 dB)
Total Harmonic Distortion (THD) 0.005%
Signal-to-Noise Ratio (SNR) 108 dB
Damping Factor >40
Inputs & Connections
Balanced Inputs 5 x XLR
Unbalanced Inputs 5 x RCA
Speaker Outputs 5 sets (Binding Posts)
Trigger Input

McIntosh MSA5500 2-Channel Receiver FAQs

Can I run the MSA5500 with both 4-ohm and 8-ohm speakers in the same setup?

Yes, thanks to McIntosh Autoformers, it matches impedance per channel, safely powering a mix of 4Ω and 8Ω speakers simultaneously.

Does the MSA5500 get hot during extended use?

It stays relatively cool due to its efficient heat dissipation design. Ventilation is still recommended for optimal performance.

What kind of preamp should I pair with the MSA5500?

Absolutely. Its clean, dynamic power delivery is ideal for high-fidelity music listening and immersive multi-channel movie soundtracks.

Is the MSA5500 a good fit for both music and movies?

Absolutely. Its clean, dynamic power delivery is ideal for high-fidelity music listening and immersive multi-channel movie soundtracks.