Antec unveils pricey Signature Series power supplies

If you’ve ever caught yourself longing for a more expensive desktop power supply, Antec’s new 850W and 650W Signature Series PSUs may seduce you. Launching today at a respective $299 and $249, Antec’s latest units are chock-full of fancy power regulation and noise reduction features, as well as 80 Plus-certified efficiency levels.

According to Antec, the two new Signature units can hit 82% efficiency at 20% and 100% load levels, and they achieve 85% efficiency at a 50% load. These PSUs also feature dual power circuit boards (to optimize airflow, the company says), a pulse-width-modulation fan capable of running at just 15% of its maximum speed, and a hybrid cable management system, which hard-wires necessary cables into the PSU to keep resistance low. Antec also touts its active DC-to-DC voltage regulation system, which supposedly cuts transient response times by two orders of magnitude and improves system stability in the process.

The Signature 650 and 850 are available now, Antec says, pointing out that both units are covered with five-year warranties. We can’t find the Signature series listed at Newegg or on our price search engine right now, though.

Comments closed
    • Tamale
    • 13 years ago

    I’ve never seen the point in spending more than $50 on a power supply. Even now you can get decent 600 W supplies for $50 after rebates or just by waiting till a deal shows up.

    Hell, this $15 480 watt PSU is probably good enough for 90% of computer out there:
    §[<http://www.svc.com/ps480d-bk.html<]§ Sure, it's the most critical component in your PC, but I've never seen the cheap PSUs get 'out performed' by the expensive ones in Call of Duty.. heh. Just buy your cheap PSU from a decent store with a decent return policy / warranty and all is well.

    • Voldenuit
    • 13 years ago

    $249 for a PSU?

    No thanks.

    (Are you reading this, Antec?)

    • Prototyped
    • 13 years ago

    Yeesh. Just get a plain SeaSonic M12 or M12 II or similar and be *[

    • zimpdagreene
    • 13 years ago

    Well its not good enough for me. I need it to have fan that looks like a car wheel with some spinners. That way the fan moves but when you look at it its not moving.

    • Kaleid
    • 13 years ago

    Bah, not even 140mm fans.

    • willyolio
    • 13 years ago

    finally, internal DC-DC power supplies. it looks good, but the prices are kind of out of the “premium” territory and in the “friggen ridiculous” area.

      • Krogoth
      • 13 years ago

      It is marketing non-sense.

      The PSU still has to convert the AC to DC at some point.

      Unless it is operating on a pure DC circuit (very specialized).

        • willyolio
        • 13 years ago

        from what i’ve heard, one large AC-DC converter plus several DC-DC is more efficient and is less complex than having 3 separate AC-DC converters. i’m no electrical engineer, but looking at the examples i’ve seen, like the picoPSU, it seems to make sense.

          • mako
          • 13 years ago

          IMO as an EE, it’s a moot point, because DC-DC is actually DC-AC-DC. Plus you’ll create more switching noise on the 12V line from the downstream switchers. The picoPSU is a special case, for low wattage applications only.

            • Saber Cherry
            • 13 years ago

            You can do DC-DC with capacitors set in parallel and switching them to series, or vice-versa. Leaving the inductors out of the equation (except for one big one) can improve efficiency. You might need a lot of capacitors to use this method, though.

            Not that it matters much, since the 5v and 3.3v draws are low and dropping every year (IIRC), and therefore don’t have to be very efficient.

    • Shinare
    • 13 years ago

    I bought a $50 rosewill 500W for my 8800GTX and E6420 @3GHz box and its still a kickin’. It seems to me that $100+ for a PSU is a little overkill.

      • cegras
      • 13 years ago

      So you buy a $xxx 8800 GTX, yet you only spend $50 on the most critical component of the system.

        • Shinare
        • 13 years ago

        Yes, its actually 550W:

        §[<http://www.newegg.com/Product/Product.aspx?Item=N82E16817182089<]§ My review was the first one for the product located at the very end on page 5.

        • absinthexl
        • 13 years ago

        If it works well, no reason to spend more.

        Spending $2500 on an HDTV doesn’t mean you have to spend more than $6 on an HDMI cable. The contrary opinion is the only thing keeping Monster Cable in business.

          • Deathright
          • 13 years ago

          I had the same model Roswell PSU and it died. Now I have a Corsair and it seems to working just fine.

    • jjj
    • 13 years ago

    anandtech had a review of the 850W part in may, nothing spectacular so the price is way too high

    • cynan
    • 13 years ago

    So are these really thaaat much better than their Quattro series? I mean, they better be, because you can get the Quattros for about half the price – and they are advertised at 850 and 1000 watts.

    And also I just bought a Quattro 850 to run HD 4850 crossfire so they better not be duds 🙂

    • ssidbroadcast
    • 13 years ago

    Yeesh: The video card or the power supply to run it. You decide.

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