Accuphase PS-550 Power Supply

Product Description

The Accuphase PS-550 Clean Power Supply is a high-performance power conditioner designed to deliver pure, noise-free AC power to high-end audio systems. Utilizing advanced waveform shaping technology, it removes noise and distortion from the AC line, providing a clean, stable power source that enhances the clarity, dynamics, and soundstage of your audio components. Encased in a sleek champagne gold chassis with a digital power meter and meticulous Japanese craftsmanship, the PS-550 is an essential addition for audiophiles seeking to maximize the performance of amplifiers, preamplifiers, and digital sources in high-end hi-fi setups. 

 Key Features  

• Waveform Shaping Technology: Removes noise and distortion from AC power by comparing the input to a reference waveform, ensuring a pure sine wave output with less than 0.08% total harmonic distortion.  
• High-Efficiency Amplification: Class AB power amplifier with MOS-FET output devices delivers clean, high-current power up to 510 VA (350W continuous).  
• Robust Power Supply: Toroidal transformer and large filtering capacitors provide stable, high-capacity power to handle dynamic audio demands.  
• Versatile Connectivity: Includes 6 high-quality AC outlets (3 duplex, non-switched) with 30A contacts, plus 1 unbalanced RCA and 1 balanced XLR input/output for integration with audio systems.  
• Digital Power Meter: Displays output power, input/output voltage, and input distortion in real-time, with adjustable brightness for user convenience.  
• Advanced Protection: Features overload protection, thermal shutdown, and power failure detection to safeguard connected components.  
• Low Noise Operation: Achieves a signal-to-noise ratio of 100 dB, ensuring minimal interference and pristine audio performance.  
• Elegant Design: Champagne gold panel, backlit digital meter, and persimmon wood side panels reflect Accuphase’s premium craftsmanship.  
• Handcrafted in Japan: Meticulous construction with premium components ensures reliability and long-term performance.  
• Energy Efficient: Consumes only 28W in normal operation, balancing performance with efficiency.

Why Choose the Accuphase PS-550?

The PS-550 is a cornerstone for high-end audio systems, eliminating AC line noise and distortion to unlock the full potential of components like Accuphase amplifiers (e.g., A-300, P-7500) and preamplifiers (e.g., C-3900). Its waveform shaping technology delivers a near-perfect sine wave, as praised in web sources for enhancing clarity and dynamics across the soundstage. Users report noticeable improvements in bass definition and imaging, with X posts highlighting its ability to “clean up the sound” in complex setups. While some note its niche appeal due to cost, the PS-550’s robust build, versatile outlets, and low-noise performance make it a future-proof investment for audiophiles seeking the ultimate in power purity.  

Product Specifications  

• Output Capacity: 510 VA (350W continuous)  
• Output Voltage: 120V/230V AC (depending on region)  
• Output Frequency: 50/60 Hz (tracks input frequency)  
• Total Harmonic Distortion: <0.08% (output waveform)  
• Signal-to-Noise Ratio: 100 dB  
• Inputs: 1 RCA unbalanced, 1 XLR balanced (for signal integration)  
• Outputs: 6 AC outlets (3 duplex, 30A contacts), 1 RCA unbalanced, 1 XLR balanced 
• Power Consumption: 28W (normal operation)  
• Protection: Overload, thermal shutdown, power failure detection  
• Dimensions: 18.3" W x 6.9" H x 15.6" D (465 x 175 x 395 mm)  
• Weight: 52.9 lbs (24.0 kg)  

What’s Included  

• Accuphase PS-550 Clean Power Supply  
• Power cord  
• User manual

Perfect For  

• Audiophiles seeking noise-free power for high-end hi-fi systems  
• Owners of Accuphase amplifiers and preamplifiers needing pristine AC power  
• Hi-fi setups requiring stable, clean power for enhanced clarity and dynamics