MC257 vs MC255
The MC255's power @ 8ω is 250W against the MC257's 200W. Both share power @ 4ω (200W), signal-to-noise (108 dB), and thd (0.005%).
Both turn up in the same documented systems.
AI-generated product photo — not official manufacturer imagery.
AmplifiersMultichannel AmplifiersPower Amplifiers
About the MC257
The McIntosh MC257 is a high-performance 7-channel solid-state power amplifier designed specifically for home theater systems. It delivers 250 watts per channel for the three front channels (left, center, right) and 200 watts per channel across all seven channels into both 4 and 8 ohm loads, thanks to Dynamic Power Manager (DPM) technology. Key features include the innovative TripleView™ Power Output Meter displaying real-time power for the front three channels, a 94% increase in dynamic headroom to 3.3dB for superior low-frequency performance and handling of dynamic peaks, five Monogrammed Heatsinks™ for silent fanless cooling, Power Guard® to prevent clipping damage, Sentry Monitor™ for short-circuit protection, and a toroidal isolation transformer for low noise. The amplifier features a classic McIntosh design with black glass front panel, polished stainless steel chassis, gold-plated binding posts, and supports versatile use: standalone 7-channel, paired with digital amps for larger systems, or 5-channel with 2-zone capability. Inputs include balanced XLR and unbalanced RCA.
Specifications
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 200W @ 8Ω
- Power @ 4Ω
- 200W @ 4Ω
- Amplifier Class
- solid_state
- Damping Factor
- >100
Analog Output
Analog signal output specifications
- THD
- 0.005%
- SNR
- 108 dB
- Output Voltage
- 2.2V RMS
Connectivity
Input and output connections
- Bluetooth
- No
- Wi-Fi
- No
- Ethernet
- No
- Analog Inputs
- RCA, XLR
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 445 × 239 × 530 mm (W × H × D)
- Weight
- 43.1 kg (95 lbs)
Key Specifications
Power: 200W
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions