{"product_id":"nuprimeevolutionstasesi","title":"NuPrime Evolution STA-SE Stereo Power Amplifier, Silver","description":"\u003cp\u003eThe NuPrime Evolution STA-SE is a stereo power amplifier that combines two independent mono amplifiers with a GaN power supply in one slim housing.\u003c\/p\u003e\u003cp\u003eIt's aimed at anyone who wants to combine the power of a power plant with the sensitivity of a good tube – without having to haul hundredweight transformer beasts into the rack.\u003c\/p\u003e\u003ch2\u003eWhy the Evolution STA-SE?\u003c\/h2\u003e\u003cp\u003eThe heart of it is the ANC GaN power supply. Think of it as high-end noise cancelling for your mains power: the power supply actively monitors the line and cancels interference in real time. That purity used to be achievable only with huge, ruinously expensive toroidal transformers. On top comes ODC technology, which corrects errors right at the components and pushes distortion down to 0.002 percent.\u003c\/p\u003e\u003ch2\u003eWhat you hear\u003c\/h2\u003e\u003cp\u003eThanks to the consistent dual-mono design, instruments stand razor-sharp on a wide, deep stage. The high switching frequency of 650 kilohertz lays bare every detail of your sources – in the workshop we like to call it \"Liquid Precision\": it flows like liquid gold and still lands with the force of a hammer blow when the music calls for it. Furutech RCA inputs and Eichmann speaker terminals ensure clean connections; with top-tier cables the amplifier rewards you audibly.\u003c\/p\u003e\u003ch2\u003eVideo\u003c\/h2\u003e\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/t2rAZ5fKThs\" title=\"NuPrime Audio Evolution STA\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e\u003ch3\u003eWho is the Evolution STA-SE for – and who isn't it for?\u003c\/h3\u003e\u003cp\u003eIt's a true endgame device: even critical electrostatic or magnetostatic speakers with a high appetite for current (up to 40 amps peak) it drives with ease. Straight talk: if you're after the typically \"mushy\" or artificially sweetened sound of old classics, the STA-SE is almost too honest for you. It doesn't colour, it shows – a precision tool that gives you a truthful snapshot of your recordings.\u003c\/p\u003e\u003ch2\u003eOur verdict\u003c\/h2\u003e\u003cp\u003eOne of the most interesting power amplifiers in its class: compact, cool, quiet, and yet brutally composed. If you want the melt of a tube but don't want to give up the authority and bass control of a 400-watt power plant, this is for you. Especially at night, the low noise floor pays off – details emerge out of nowhere.\u003c\/p\u003e\u003ch2\u003eTechnical data\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e stereo power amplifier, dual-mono, Class-D hybrid with ODC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput power (RMS):\u003c\/strong\u003e 2 x 400 watts into 8 and 4 ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e ANC GaN with active noise cancellation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitching frequency:\u003c\/strong\u003e 650 kilohertz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistortion (THD+N):\u003c\/strong\u003e 0.002 percent at 5 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency response:\u003c\/strong\u003e 10 hertz to 50,000 hertz (-3 dB)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal-to-noise ratio (S\/N):\u003c\/strong\u003e 110 decibels at 100 watts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput impedance:\u003c\/strong\u003e 47 kilohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeak current:\u003c\/strong\u003e up to 40 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter capacitance:\u003c\/strong\u003e 52,000 µF total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e Furutech FP900 RCA, balanced XLR, Eichmann binding posts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e 430 × 57 × 375 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 10.5 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinishes:\u003c\/strong\u003e black or silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e power amplifier, power cord, trigger cable, user manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoes the STA-SE really deliver the same power at 4 and 8 ohms?\u003c\/strong\u003e\u003cbr\u003eYes. The GaN power supply works so tightly controlled that the amplifier delivers 2 x 400 watts RMS stably into both 8 and 4 ohms. Where many amplifiers sag at low impedance, the STA-SE keeps control – ideal for current-hungry or capacitive speakers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does gallium nitride (GaN) offer over classic silicon?\u003c\/strong\u003e\u003cbr\u003eGaN semiconductors switch significantly faster and more efficiently. This allows a very powerful power supply in a small space that generates less heat and reacts lightning-fast to dynamic jumps in the music. The result is a quiet, black background.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the STA-SE a Class-D power amplifier – doesn't that sound harsh?\u003c\/strong\u003e\u003cbr\u003eIt is Class D, but a special one. Thanks to ODC error correction and the high 650-kilohertz switching frequency, it avoids the typical digital harshness and sounds natural and refined, closer to a good Class-A circuit than a switching amplifier.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the STA-SE suit my speakers?\u003c\/strong\u003e\u003cbr\u003eIn the vast majority of cases, yes – especially power-hungry or electrically tricky speakers benefit. We're happy to work out in person at HD Zürisee in Wädenswil which preamp and power amp combination suits your room and your speakers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy buy the NuPrime Evolution STA-SE at HD Zürisee?\u003c\/strong\u003e\u003cbr\u003eWe're an established specialist shop on Lake Zurich and know which speakers a power amplifier like this shines with – and which it doesn't. Plus our own technician for delivery and set-up, honest advice on the right preamp, and proper warranty handling. Call or write to us.\u003c\/p\u003e\u003ch2\u003eGoes well with\u003c\/h2\u003e\u003cp\u003eA power amplifier needs an equally capable preamp and matching speakers. Browse the \u003ca href=\"\/en-ch\/collections\/vorverstarker\"\u003epreamplifiers\u003c\/a\u003e, the \u003ca href=\"\/en-ch\/collections\/lautsprecher\"\u003espeakers\u003c\/a\u003e, and the right \u003ca href=\"\/en-ch\/collections\/kabel\"\u003ecabling\u003c\/a\u003e. We'll tell you honestly which combination suits your room.\u003c\/p\u003e","brand":"NuPrime","offers":[{"title":"Default Title","offer_id":52989544399184,"sku":"NP-EVOSTASE-SILVER","price":5499.0,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0932\/3262\/8048\/files\/nuprime-evolution-sta-se-stereo-endstufe-silber-frontansicht.png?v=1786615109","url":"https:\/\/hdzuerisee.ch\/en-ch\/products\/nuprimeevolutionstasesi","provider":"HD Zürisee AG","version":"1.0","type":"link"}