Onkyo PA-MC5501

Highlights

• THX Ultra2 Certification
• WRAT (Wide Range Amplifier Technology)
• Fully analog circuits immune to digital noise
• Audiophile design and high-performance components
• Separate output stage circuits

The PA-MC5501 doesn’t just deliver raw power: it’s engineered for unrivaled dynamic response and stunning signal purity. The push-pull amplifier’s exceptional efficiency and Onkyo’s WRAT technology reduce interference, stabilize voltage, and boost current across all electrical sections.

Every component, from the toroidal transformer to the oversized capacitors and high-output transistors, is built to handle immense power.

Even the smallest parts, like the gold-plated speaker posts and XLR inputs, are audiophile-grade. The result is instantaneous response to signal peaks, extremely low distortion even at the far ends of the dynamic range, and above all, the warmth and clarity only an analog amp can produce.

Paired with an Onkyo preamp, the PA-MC5501’s nine channels and bi-amping deliver extraordinary setup flexibility, like letting you enjoy the ultimate in THX Ultra2 surround sound.

• Output Power (6 Ω, 1 kHz, 1%, 1 Channel Driven, IEC)
  • Front L/R: 220 W/Ch
  • Center: 220 W
  • Surround L/R: 220 W/Ch
  • Rear Surround L/R: 220 W/Ch
• Dynamic Power
  • 400 W (3 Ω, Front)
  • 300 W (4 Ω, Front)
  • 180 W (8 Ω, Front)
• Wide Range Amplifier Technology (WRAT)
• Three-Stage Inverted Darlington Circuitry
• Separate Amplifiers for All Channels
• Oversized Toroidal Transformer

Measurements

• Total Harmonic Distortion: 0.05% (20 Hz–20 kHz, Rated Power)
• Damping Factor: 60 (Front, 1 kHz, 8 Ω)
• Input Sensitivity and Impedance
  • 1 V/47 kΩ (Balanced)
  • 2 V/22 kΩ (Unbalanced)
• Frequency Response: 5 Hz–100 kHz/+1 dB, -3 dB
• Signal-to-Noise Ratio: 110 dB (Unbalanced, IHF-A)
• Speaker Impedance: 4 Ω–16 Ω or 6 Ω–16 Ω

Connectivity

• Balanced Inputs
• Unbalanced Inputs
• Gold-Plated XLR Inputs
• Machined Brass RCA Input Terminals

General

• Power Supply: AC 220–240 V~, 50/60 Hz
• Power Consumption: 1,050 W
• Standby Power Consumption: 0.3 W
• Dimensions (W x H x D): 435 x 198.5 x 446.5 mm
• Weight: 22.2 kg
• Included Accessories
  • Power Cord (Plug Type Varies by Country)
  • Mono Mini-Plug Cable for 12 V Trigger Terminals
  • Color-Coded Speaker Cables
  • Instruction Manual