ZOWIE XL2566K vs XL2546K vs XL2566X+: Which One Should You Actually Buy?
By Dan Whitfield··8 min read
These three are the monitors you see behind CS2 and Valorant pros, and the comparison people search for constantly. There is a problem with it: two of the three are no longer sold on Amazon US. Search either K model and you get screen protectors, not monitors.
So this covers both halves — how the three actually differ, and what each one has been replaced by, with prices checked live.
Prices, ratings and stock checked on Amazon . Prices move — treat them as a guide, not a quote.
The Three, Side by Side
| Model | Refresh | Panel | Motion | Status | Replaced by |
|---|---|---|---|---|---|
| XL2546K | 240Hz | TN, 24.5" | DyAc⁺ | Discontinued on Amazon US | XL2546X+ (280Hz, DyAc 2) |
| XL2566K | 360Hz | TN, 24.5" | DyAc⁺ | Discontinued on Amazon US | XL2566X+ (400Hz, DyAc 2) |
| XL2566X+ | 400Hz | TN, 24.1" | DyAc 2 | Current — $649.99 | — |
The K-series pair differ in exactly one meaningful way — 240Hz versus 360Hz. Same 24.5-inch TN panel, same DyAc⁺, same S-Switch, same Black eQualizer, same detachable shields. ProSettings gave both 5/5. The XL2566X+ is the newer generation: a slightly smaller 24.1-inch panel, 400Hz, and DyAc 2 in place of DyAc⁺.
What DyAc Actually Does
It is the reason people buy ZOWIE over a cheaper panel with the same refresh rate, and it is routinely explained badly. DyAc strobes the backlight in sync with the refresh cycle. The blur you see during a fast flick is not only the panel being slow — a large part of it is your own eye smearing a continuously-lit image as it tracks. Flashing the backlight interrupts that, so the frame lands on your retina as a distinct image instead of a smear.
In practice it means a spray pattern stays readable while you are correcting it, and a flick past a doorway leaves a recognisable silhouette rather than a blur. The cost is brightness — strobing throws light away — and some crosstalk. Each generation, DyAc⁺ → DyAc 2 → DyAc 3, mostly buys back those two costs rather than adding anything new.
Does 400Hz Beat 360Hz? Honestly, Barely
Each step up the refresh ladder returns less than the one before. 60 to 144 is obvious to anybody. 144 to 240 is obvious to most players. 240 to 360 is noticeable if you are trained and paying attention. 360 to 400 is where honest reviewers stop claiming a felt difference — ProSettings puts the gap between the XL2566K and XL2566X+ as minimal, and recommends the upgrade only if you do not already own the older one.
There is also a requirement people skip: a 400Hz panel only does something if your PC feeds it. If CS2 sits at 200fps on your machine, half of what you paid for is idle. Check your frame rate before you check the price — and if it is short, our PC component picks are the better place for the money.
What You Can Actually Buy Right Now
The current ZOWIE line, cheapest first. Prices and ratings pulled from Amazon on .
ZOWIE XL2540X+
$349.99The cheapest way into the current XL line, and the highest-rated of the lot at 4.8★. No DyAc, which is the whole reason it is $150 less than the XL2546X+ — if you have never used strobing you will not miss it, and if you have, you will.
Check price on AmazonZOWIE XL2546X+
$499.99The direct successor to the XL2546K everyone still searches for: same class of panel, 280Hz instead of 240Hz, and DyAc 2 rather than DyAc⁺. If the XL2546K was on your list, this is the monitor you were actually looking for.
Check price on AmazonZOWIE XL2566X+
$649.99400Hz with DyAc 2 and the cleanest stand of the range. ProSettings rates it 5/5 and notes the panel is marginally better than the XL2566K's — but also flags coil whine above 240Hz and chunky bezels. This is the one most competitive players should buy.
Coil whine at 240Hz and above is a documented complaint. Worth knowing if you play without headphones.
Check price on AmazonZOWIE XL2586X+
$999.99600Hz, and the honest framing is that almost nobody needs it. Between 400Hz and 600Hz you are buying a difference most players cannot see and most PCs cannot feed — you need CS2 running well above 600fps for the panel to mean anything.
Check price on AmazonZOWIE XQ2566X
$899.99The outlier: 1440p instead of 1080p, DyAc 3, ZOWIE Sync and a G-Sensor. ZOWIE finally admitting that some competitive players want resolution too. Fewer Hz than the XL2566X+ but a genuinely sharper image.
Only 2 ratings so far — new enough that there is not much owner feedback yet.
Check price on AmazonWhich One, In One Line Each
You were going to buy the XL2566K
Buy the XL2566X+ at $649.99. Same job, newer panel, DyAc 2, and it is actually in stock.
You were going to buy the XL2546K
Buy the XL2546X+ at $499.99. Direct replacement, 280Hz instead of 240Hz.
Your PC does not hold 300fps in CS2
XL2540X+ at $349.99, and put the saved $300 into the PC. It is the higher-rated monitor anyway at 4.8★.
You want the best and cost is secondary
XL2566X+ still. The XL2586X+ at $999.99 buys 600Hz you will not perceive.
You want sharpness as well as speed
XQ2566X at $899.99 — 1440p, DyAc 3, and the first ZOWIE that does not treat resolution as the enemy.
Why Pros Still Use 24-Inch 1080p TN
It looks like a downgrade next to a 27-inch 1440p OLED, and it is not. A 24-inch panel fits inside your field of view, so you track the crosshair instead of scanning the screen for information at the edges. 1080p is trivial for a modern GPU to push at very high frame rates, and frames above the refresh rate is what actually keeps input latency low. And TN still switches faster than IPS at these speeds.
The price is the thing every review lists: narrow viewing angles and colour that no one would call good. For an editing monitor that is disqualifying. For a competitive panel it is a trade the entire professional scene has made on purpose — which is why the XQ2566X moving to 1440p is the most interesting thing ZOWIE has done in years.
If you are building the rest of the setup around it, our monitor guide covers dual-screen layouts for streaming, and the keyboard and mouse picks cover the other half of the input chain.
Frequently Asked Questions
What is the difference between the ZOWIE XL2566K and XL2546K?
Refresh rate, essentially. Both are 24.5-inch 1080p TN panels with DyAc⁺, the same S-Switch, Black eQualizer and detachable shields. The XL2546K runs at 240Hz and the XL2566K at 360Hz. ProSettings rates both 5/5. In practice the 240Hz model was the value pick and the 360Hz one the flagship — and both have now been replaced by the X+ line.
Can you still buy the ZOWIE XL2566K or XL2546K?
Not on Amazon US, as of September 21, 2026. Searching either model number returns screen protectors and power cables rather than monitors. They have been superseded by the X+ generation: the XL2546X+ replaces the XL2546K, and the XL2566X+ replaces the XL2566K. You may still find K-series stock at regional retailers or used, and there is nothing wrong with the panels — but new, from Amazon, they are gone.
What is the difference between DyAc+ and DyAc 2?
DyAc is ZOWIE's backlight strobing: it flashes the backlight in sync with the refresh to cut the motion blur your eye adds during fast flicks, which is why spray patterns look steadier on a ZOWIE than on a normal panel at the same refresh rate. DyAc⁺ is the version on the K-series, DyAc 2 is the newer implementation on the X+ line, and DyAc 3 appears on the XQ2566X. Each generation reduces the brightness penalty and the crosstalk that strobing introduces.
Is 400Hz actually better than 360Hz?
Measurably, yes. Perceptibly, barely. The jump from 60Hz to 144Hz is obvious to everyone, 144Hz to 240Hz is obvious to most players, 240Hz to 360Hz is noticeable to trained competitive players, and 360Hz to 400Hz is where honest reviewers stop claiming a felt difference. ProSettings puts the gaming performance gap between the XL2566K and XL2566X+ as minimal. Buy the X+ for the newer panel, DyAc 2 and the better stand — not for the 40Hz.
Which ZOWIE monitor is best for CS2 and Valorant?
The XL2566X+ at $649.99 for most competitive players: 400Hz, DyAc 2, and enough headroom that the monitor stops being the limiting factor. If your PC cannot hold 300+ fps in CS2, spend the difference on the PC instead and take the XL2546X+ at $499.99 or the XL2540X+ at $349.99 — a 400Hz panel fed 200fps is 200Hz of monitor you paid for and are not using.
Why do pros use 24-inch 1080p TN monitors instead of 1440p?
Three reasons that all still hold. A 24-inch panel fits in your field of view without eye movement, so you track the crosshair rather than scan the screen. 1080p is easy for a GPU to push at extreme frame rates, and frame rate above the refresh rate is what keeps input latency low. And TN panels still switch faster than IPS or OLED at these refresh rates. The XQ2566X at 1440p is the first serious sign of that changing.
Do I need a 360Hz or 400Hz monitor to be competitive?
No. The measurable advantage from 240Hz upward is small and shrinks with every step. What matters far more is a stable frame rate above your refresh rate, a consistent setup and time on the game. These monitors are for players who have already removed every other variable — which is exactly why you see them on LAN stages and not in most people's bedrooms.
Specifications and review verdicts for the XL2566K, XL2546K and XL2566X+ are from ProSettings. Prices, ratings and availability were checked on Amazon on and move constantly — treat them as a guide, not a quote. Product links are affiliate links: they cost you nothing and we earn a small commission.