Introduction
The PS-1250 is Accuphase’s high-performance clean power conditioner, engineered to regenerate pure, sine-wave AC for your audio system. By comparing incoming mains against a precise reference waveform and actively correcting imperfections, it removes distortion and noise—delivering rock-steady power that elevates dynamics, clarity, and bass authority.
Design
Housed in a rigid, low-resonance chassis, the PS-1250 combines a shielded toroidal power transformer with massive filtering capacitors and a waveform-correction amplifier. Its front-panel display provides live meters for output VA, voltage, distortion, and waveform, while multiple, independently protected outlets accommodate any system configuration.
Application
Install the PS-1250 between your wall outlet and audio components to eliminate common mains issues—voltage sag, harmonic distortion, and digital hash. Ideal for powering amplifiers, preamps, streamers, and digital sources, it ensures every component receives a pristine AC supply, unlocking hidden detail and improving system reliability.
Technology Overview
- Waveform Shaping: A reference-signal generator creates an ideal sine wave. The PS-1250 compares incoming AC to that reference and injects compensation currents to correct distortion and suppress harmonics by over 40 dB.
- Three-Stage Noise Elimination: Line filtering removes high-frequency interference; a shielded toroidal transformer blocks common-mode noise; and the waveform-correction amp delivers a distortion-free output.
- Real-Time Monitoring: Onboard meters display VA load, input/output voltage, THD percentage, and live waveform overlays—letting you optimize component connections and avoid overload.
Key Features
- Continuous output capacity: 900 VA
- Output voltage regulation: ±1.5 V (120 V models), ±3 V (230 V models)
- Total harmonic distortion shaping: ≤ 0.08%
- Front-panel meters for VA, voltage, distortion, and waveform
- Eight AC outlets on four switchable zones
- High-efficiency shielded toroidal power transformer
- Massive 48,000 µF filtering capacitors
- High-sensitivity protection circuitry with overload/thermal shutdown
- Natural convection cooling; no fans
- Elegant champagne-finish front panel with gloss aluminum side plates
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