PA-MC5501 THX Ultra2 9-Channel Power Amplifier

$1,899 MSRP

As an all-analog amplifier, the PA-MC5501 is built to deliver powerful, well-balanced amplification free from digital noise interference. Onkyo’s trusted WRAT amplifier philosophy ensures low negative feedback and high instantaneous current capability. Meanwhile, customized capacitors, large transistors, gold-plated terminals, and a massive toroidal transformer exemplify the unit’s superb engineering standards. In recognition of this, the PA-MC5501 boasts THX® Ultra2™ certification: the ultimate guarantee of amplification quality..

THX Ultra2 Certified
# Channels 9
Rated Power Output
20 Hz to 20 kHz, 0.05% THD (FTC) 150W Min. @ 8 ohms
Continuous 6 Ω Rated
Continuous 4 Ω Rated
WRAT (Wide Range Amplifier Technlogy)
Amplifier Frequency Response 5 Hz-100 kHz
(+1 dB,-3 dB)
Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry to Remove Distortion
All Discrete Output Stage Circuitry
Massive Shielded Toroidal Transformer
Independent Power Supply 3
Large Capacitors for Effective Power Supply ✓ (x2)
(Customized 22,000 Microfarad Each)
Reference Grade Capacitors X
(Audio Tuned for Each Channel)
Large, Custom-Designed Power Transistors
Low-Impedance, Copper Bus Plates for Perfect Ground Potential
High-Current, Low-Impedance Circuit Boards with Thick Copper Foil
Gold-Plated XLR Inputs
Machined Solid Brass RCA Inputs
Gold-Plated, Transparent Binding Posts ✓ (5-way)
Multi-Zone Capability (up to Zone 3)*
Bi-Amping Capability*
12 V Trigger Input
Auto Power Down Function
Flat, High-Rigidity, Anti-Resonant Chassis ✓ (1.6 mm Thick)
Aluminum Front Panel
Detachable AC Cord
Warranty 2 YEARS
*Depending on A/V Controller
Power Output
All Channels150 W/Ch at 8 ohms;
20 Hz-20 kHz, 0.05%; 2 Channels driven, FTC
Dynamic Power400 W (3 ohms, Front)
300 W (4 ohms, Front)
180 W (8 ohms, Front)
THD (Total Harmonic Distortion)0.05 %
(Rated Power)
Damping Factor60 (Front, 1 kHz, 8 ohms)
Input Sensitivity and Impedance1 V/47 k-ohms (Balanced)
2 V/22 k-ohms (Unbalanced)
Frequency Response5 Hz to 100 kHz (+1dB, -3 dB)
Signal-to-Noise Ratio110 dB
(Unbalanced, IHF-A)
Speaker Impedance4 ohms –16 ohms; or 6 ohms–16 ohms
Power SupplyAC 120 V, 60 Hz
Power Consumption11.7 A
Dimensions (W X H X D)17 1/8" x 7 13/16" x 17 9/16"
435 × 198.5 × 446.5 mm
Weight48.9 lbs (22.2 kg)

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