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CONCLUSIONS
Seasonic's drive to improve acoustics and efficiency in its power supplies has been a constant for the past decade. The X-1050 extends into the kilowatt circle all the benefits of the X series we documented in our X-650 review. This power supply boasts extremely high voltage regulation, very low ripple and noise, extremely low acoustic noise under varied conditions, very high energy efficiency, super quality parts and a robust build quality.
A notable quality (at least in our sample) is the absence of any audible electronic hum, buzz or whine. This is exceptional, the best I've ever encountered in a decade of testing power supplies.
For those who need or want a power supply that delivers over a kilowatt, Seasonic X-1050 is an excellent choice. It is far better than actually needed for any computer. Even the $219 pricing seems perfectly fair. The X-1050 deserves our highest recommendation.
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Seasonic X-1050 Balance Sheet
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Likes
* >90% efficiency in typical use
* Silent in typical use
* Electrical performance is tops
* Semi-passive cooling really works; fan runs only when needed.
* Clever, innovative engineering
* Great quality components
& build
* All modular cables
* 5-year warranty
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Quibbles
* Is a kilowatt PSU really necessary? |
Much thanks to Seasonic USA for this review sample.
SPCR Editor's Choice Award
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SPCR Articles of Related Interest:
Power
Supply Fundamentals
Corsair Gold: AX850 Power Supply
X-650: Seasonic hits Gold
Fanless PSUs: Kingwin Stryker STR-500 & Silverstone ST50NF
Fanless PSU Torture Test Shootout
Kingwin LZP-550 80 Plus Platinum
Recommended Power Supplies
SPCR PSU Test Rig V.4
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