{"product_id":"accuphase-ps-1250-clean-power-supply","title":"Accuphase PS-1250 Clean Power Supply","description":"\u003cmeta charset=\"UTF-8\"\u003e\n\n\u003ch2\u003ePS-1250 At A Glance\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated output:\u003c\/strong\u003e 1,200 VA continuous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput total harmonic distortion:\u003c\/strong\u003e 0.08%\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTopology:\u003c\/strong\u003e Active waveform-shaping AC regeneration with high-grade output-voltage correction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFront-panel monitoring:\u003c\/strong\u003e Input\/output waveform display; output power meter; input\/output voltage meters; input\/output distortion meters\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Large high-efficiency toroidal transformer; large filtering capacitors; high-sensitivity protection circuitry\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutputs:\u003c\/strong\u003e Multiple AC output terminals; available in 120 V and 230 V versions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe PS-1250 is the higher-capacity Accuphase clean power supply — a 1,200 VA active AC regenerator sized for full reference-grade systems where amplifier current draw exceeds what the 500 VA PS-550 can serve. Like its smaller sibling, the PS-1250 rebuilds the mains waveform into a 0.08 %-distortion sine wave with voltage held stable at the unit's rated output.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2.4 times the capacity of the PS-550.\u003c\/strong\u003e A Class A power amplifier idles at a substantial fraction of its rated output power even with no signal present — that is the cost of Class A operation. An A-80 stereo power amplifier, an A-48S, or a pair of A-300 monoblocks all draw meaningfully more current than a Class A\/B amplifier of comparable rated output. The PS-1250 is sized for systems where the amplification chain is the dominant current draw and where the PS-550's 500 VA headroom would not be sufficient to avoid sagging during peak transients.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eActive regeneration, voltage correction, instrumentation-grade monitoring.\u003c\/strong\u003e The PS-1250 carries the same active-regeneration topology as the PS-550 — full waveform reconstruction, real-time voltage correction, and the row of front-panel meters showing input and output waveforms, power consumption, voltage, and total harmonic distortion side by side. The output is held to 0.08 % THD regardless of how distorted the incoming mains is.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConstruction.\u003c\/strong\u003e Large high-efficiency toroidal transformer (sized for the 1,200 VA capacity), generously dimensioned filtering capacitors, high-sensitivity protection circuitry, machined-aluminum chassis with brushed-gold faceplate, high-carbon cast-iron isolator feet. The chassis is heavier and physically larger than the PS-550 to accommodate the larger transformer and capacitor bank.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSizing notes.\u003c\/strong\u003e For a complete reference Accuphase system — C-3900S preamplifier, A-300 monoblocks, DP-1000 transport, DC-1000 DAC, plus a streamer or server — the PS-1250 is the appropriate clean power supply. For mid-power systems built around an integrated amplifier and source, the smaller PS-550 is sufficient.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/www.accuphase.com\/model\/ps-1250.html\" target=\"_blank\" rel=\"noopener\"\u003eClick here for more information!\u003c\/a\u003e\u003c\/p\u003e\n","brand":"Accuphase","offers":[{"title":"Default Title","offer_id":48803413754075,"sku":null,"price":17575.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1363\/6553\/files\/ps-1250_120v_birds_eye_view_front_wavout.png?v=1779596000","url":"https:\/\/almaaudio.com\/products\/accuphase-ps-1250-clean-power-supply","provider":"Alma Music and Audio","version":"1.0","type":"link"}