Accuphase PS-550 Power Supply
Precision AC waveform regeneration for pure, noise-free power and superior sound performance.
The Accuphase PS-550 Power Supply delivers the cleanest possible AC power to your audio components. Designed for serious audiophiles, it uses waveform-shaping technology to eliminate noise and harmonic distortion from the mains, providing a stable and pure power source. This ensures your system operates at its full potential, with improved clarity, dynamic range, and tonal refinement.
Inside the Accuphase PS-550, a precision sine-wave generator and waveform correction amplifier work in tandem to monitor and reshape incoming voltage in real time. The result is a perfect sinusoidal output with total harmonic distortion of less than 0.08%. The shielded toroidal transformer and high-capacity capacitors ensure low noise and superior current stability for any connected components.
A front-mounted LCD display provides live readouts of input and output voltage, distortion percentage, output waveform, and load status, making performance monitoring simple. The PS-550 operates silently using natural air cooling, with no fans or mechanical noise.
Ideal for powering DACs, preamplifiers, integrated amplifiers, and source components, the Accuphase PS-550 enhances every part of your listening experience by providing a clean, stable electrical foundation. In Stock and ready to ship. For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team. All Elite Audio is an authorized Accuphase dealer in Maryland and operates a full home audio showroom.
Key Specifications
Rated Output Capacity: 510 VA (continuous)
Rated Output Voltage: 120V AC ±1.5V or 230V AC ±3.0V
Output Waveform THD: ≤ 0.08%
No-Load Power Consumption: 27W (120V) / 43W (230V)
Cooling: Natural air cooling (no fan)
Dimensions (W×H×D): 465 × 181 × 385 mm
Weight: 24.0 kg (52.9 lbs)
Top 20 Questions About the Accuphase PS-550
What is the Accuphase PS-550 used for?
The Accuphase PS-550 regenerates and purifies AC power, providing clean, stable voltage for high-end audio systems to enhance performance.
How does the Accuphase PS-550 improve sound quality?
By removing distortion and voltage fluctuations, the Accuphase PS-550 ensures quieter backgrounds, better dynamics, and more precise imaging.
What is the output capacity of the Accuphase PS-550?
The Accuphase PS-550 provides 510 VA of continuous output capacity for powering multiple components.
What voltage versions are available?
The PS-550 is available in both 120V and 230V versions for global compatibility.
How much distortion does the Accuphase PS-550 produce?
The PS-550 achieves total harmonic distortion of ≤ 0.08%, ensuring an exceptionally pure output waveform.
Does it have a display?
Yes. The front-panel LCD shows voltage, waveform, distortion level, and power load information.
Is the Accuphase PS-550 fan-cooled?
No, it uses silent natural convection cooling for completely noise-free operation.
How large and heavy is the Accuphase PS-550?
It measures approximately 465 × 181 × 385 mm and weighs around 24 kg.
Can it power multiple devices?
Yes. The PS-550 features multiple output sockets designed for consistent voltage delivery across components.
Is the Accuphase PS-550 compatible with amplifiers?
Yes. It can power integrated or power amplifiers within its rated output capacity.
Does it reduce noise in digital systems?
Yes. By delivering clean power, it reduces noise in digital sources such as DACs and streamers.
Is it suitable for continuous operation?
The Accuphase PS-550 is built for 24/7 use with premium reliability.
Does it include overload protection?
Yes. The PS-550 features advanced overload and voltage monitoring protection circuitry.
How much power does it consume at idle?
The PS-550 consumes 27W (120V) or 43W (230V) when idle.
What system improvements can I expect?
Expect deeper bass, cleaner treble, and improved microdetail with cleaner AC power delivery.
Does it require maintenance?
Minimal. Keep it ventilated and dust-free for optimal performance.
Can it be upgraded or expanded?
The PS-550 is a complete, self-contained unit and requires no add-ons.
Is it suitable for both analog and digital systems?
Yes. It benefits both types of components equally.
What is the warranty on the Accuphase PS-550?
The Accuphase PS-550 includes a standard manufacturer warranty through authorized dealers.
Where can I buy the Accuphase PS-550?
The Accuphase PS-550 is available from All Elite Audio. For assistance or product questions, call 443-402-5055 or text 443-402-5064 to reach our team at All Elite Audio, your authorized Maryland dealer with a full home audio showroom.
