Blur Busters Forums

Currently gsync pulsar has a bug where LFC kicks in at low FPS when it shouldn't be kicking in which leads to the 2nd pulse also kicking on more often then it should which leads to the crosstalk at lower fps, there's going to be a firmware update that will address the issue along with update to support pulsar between 48 - 360 hz

So I just received this Pulsar monitor, and the MO27Q28G 4.th gen "matte" WOLED as well.

I was hoping to upgrade from my existing Acer XV272UKF 300 hz IPS panel, but first impressions aren't as good as I had hoped, unfortunately. That Acer monitor has excellent brightness when utilizing its backlight strobing "VRB" @ 300 hz / 300 fps, no g-sync, which is a framerate I get in the fast paced FPS games I play. It also has good motion clarity, as I seemingly can't really see an upgrade moving to the 280 hz OLED panel, or this brand new 360 hz G-sync Pulsar ASUS monitor.

The Asus ROG Strix XG27AQNGV has an annoying high frequency pitch, when engaging Pulsar at 360 hz, but not at 240 hz. There is also a different pitch @ 360 hz ULMB2, but not as high as with Pulsar, this also disappears @ 240 hz. The frequency is not present when Pulsar or ULMB 2 are disabled @ 360 hz. EDIT: This behavior of Pulsar enducing a pitch ONLY occurs above 200 nits of brightness. When you have the monitor below that, it is not noticeable, to me. Brightness 500 with no Pulsar makes no pitch
These frequencies probably won't be heard by most users, and definitely not when using headphones or iems. BUT if you have good hearing, and have this monitor in a quiet room, you will hear this frequency. I am a man in the middle 40s with perfect hearing, and it annoys me. I even have tinnitus, but this sound is still a nuisance.

I don't like looking at this monitor when browsing / desktop usage, I get more eye fatigue than on my Acer's Innolux 300 hz panel, this is with and without Pulsar enabled. This is somewhat mitigated by using the built-in sRGB mode, which really dulls (and locks) the brightness, but yeah, this is probably highly subjective.
The monitor can become very bright, 500 nits it seems, even with Pulsar enabled, it is super bright.

Question: I fired up Battlefield 6's training course, where I get above 400 FPS, to play with the Pulsar tech. I used the built-in frame limiter to cap @ 120 fps. I noticed the Hz counter of the monitor dropping from 324 to 120, and instant Blur when panning the FOV. I then enabled Pulsar while in-game and so NO difference, still lots of blur!?
Wasn't the purpose of this monitor to remove blur at such low frame rates?
I then looked at the monitor through the lens of my iPhone 13, and I could not notice any strobing, like I had expected, in fact I could not detect a difference in the picture when enabling / disabling Pulsar.
If I do the same video test with the iphone vs my Acer VRB, I can instantly see the strobing when applied.
I reset the monitor to default settings, no difference. So what is going on?

PS: Ask me anything - ill try to test whatever, before returning it, as I cannot live with the pitch.

Mine doesn't have a pitch or noise (regardless of the refresh rate) and I'm also very sensitive to noise (I've swapped out at least 2 UPS simply because of the high pitch electrical noise) so I assume it's not all units have this issue.

olain wrote: ↑

15 Jan 2026, 08:24

Question: I fired up Battlefield 6's training course, where I get above 400 FPS, to play with the Pulsar tech. I used the built-in frame limiter to cap @ 120 fps. I noticed the Hz counter of the monitor dropping from 324 to 120, and instant Blur when panning the FOV. I then enabled Pulsar while in-game and so NO difference, still lots of blur!?
Wasn't the purpose of this monitor to remove blur at such low frame rates?
I then looked at the monitor through the lens of my iPhone 13, and I could not notice any strobing, like I had expected, in fact I could not detect a difference in the picture when enabling / disabling Pulsar.
If I do the same video test with the iphone vs my Acer VRB, I can instantly see the strobing when applied.
I reset the monitor to default settings, no difference. So what is going on?

It does seem like the monitor isn't functioning correctly. Have you tried enabling Pulsar and restarting your PC and then firing up the game with Pulsar enabled from the start?

olain wrote: ↑

15 Jan 2026, 08:24

I was hoping to upgrade from my existing Acer XV272UKF 300 hz IPS panel, but first impressions aren't as good as I had hoped, unfortunately. That Acer monitor has excellent brightness when utilizing its backlight strobing "VRB" @ 300 hz / 300 fps, no g-sync, which is a framerate I get in the fast paced FPS games I play. It also has good motion clarity, as I seemingly can't really see an upgrade moving to the 280 hz OLED panel, or this brand new 360 hz G-sync Pulsar ASUS monitor.

I don't like looking at this monitor when browsing / desktop usage, I get more eye fatigue than on my Acer's Innolux 300 hz panel, this is with and without Pulsar enabled. This is somewhat mitigated by using the built-in sRGB mode, which really dulls (and locks) the brightness, but yeah, this is probably highly subjective.
The monitor can become very bright, 500 nits it seems, even with Pulsar enabled, it is super bright.

Is the XV272UKF a KSF/PFS based display? Are you able to notice red fringing on it when VRB is enabled?
I assume there isn't the ability to adjust the pulse width to specific settings & it's a fixed pulse width?
Namely:
300Hz → ~3,333ms
25% PW → 0,83325ms (what you would get on PULSAR or ULMB2 on the XG27AQNGV)
20% PW → 0,6666ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")
15% PW → 0,49995ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")

THe former complaint might be related to the QD-based backlight.

I just picked up this monitor and have been testing peoples suggestions. My frame-rates in CS2 are Avg=543.1, P1=238.5. What would the downsides be to NOT using GSync or a frame limit with this monitor? Would it still be innately helping with motion clarity or does that require a frame limit? thanks!

I'm getting a bug where when you have Ambient Adaptive Brightness on, but then the monitor goes on standby or off... the settings doesn't turn back on with it. I actually like this feature, it works really well and want it to keep working.

Edit: I do not hear any loud pitch noise when at 500 brightness and pulsar on at 360hz either. I been playing on that monitor for awhile only because I saw the one post saying his monitor was overheating.

kyube wrote: ↑

15 Jan 2026, 13:55

olain wrote: ↑

15 Jan 2026, 08:24

I was hoping to upgrade from my existing Acer XV272UKF 300 hz IPS panel, but first impressions aren't as good as I had hoped, unfortunately. That Acer monitor has excellent brightness when utilizing its backlight strobing "VRB" @ 300 hz / 300 fps, no g-sync, which is a framerate I get in the fast paced FPS games I play. It also has good motion clarity, as I seemingly can't really see an upgrade moving to the 280 hz OLED panel, or this brand new 360 hz G-sync Pulsar ASUS monitor.

I don't like looking at this monitor when browsing / desktop usage, I get more eye fatigue than on my Acer's Innolux 300 hz panel, this is with and without Pulsar enabled. This is somewhat mitigated by using the built-in sRGB mode, which really dulls (and locks) the brightness, but yeah, this is probably highly subjective.
The monitor can become very bright, 500 nits it seems, even with Pulsar enabled, it is super bright.

Is the XV272UKF a KSF/PFS based display? Are you able to notice red fringing on it when VRB is enabled?
I assume there isn't the ability to adjust the pulse width to specific settings & it's a fixed pulse width?
Namely:
300Hz → ~3,333ms
25% PW → 0,83325ms (what you would get on PULSAR or ULMB2 on the XG27AQNGV)
20% PW → 0,6666ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")
15% PW → 0,49995ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")

THe former complaint might be related to the QD-based backlight.

Not sure what you are asking, but the 300 hz display I already have, has 2 strobing mode, normal and extreme, with different pulse widths. Only Normal is playable, as Extreme makes the display too dim. Either way, with the normal mode, @ 300 fps you get a 600 hz motion like LCD clarity, which seems just as good as the 280 hz 4.th gen WOLED or this new 360 pulsar monitor.
BUT my big concern is not so much that I cant see a difference at the high 300+ fps motion, but in _all_ the reviews, it is said that even @ 120 fps, this Pulsar will seem like 360+ FPS motion clarity, however, I cannot see that my self. I see alot of blur @ 120 fps, and its the same with Pulsar disabled. This worries me, and makes me think that something is wrong with my unit.
I have the latest nvidia driver and beta nvidia app installed. This behaviour isnt changed turning off v-sync.

I figured out how to objectively see if strobing was on, I took still images @ 1 / 1000 sec shutter speed:

No Strobe 300 / 360 hz : https://ibb.co/LXhCxtgb
VRB Strobe @ 300 and Pulsar @ 360 : https://ibb.co/4n1vc8M6
VRB Strobe @ 120 Pulsar @ 120 : https://ibb.co/hF42t5R5
VRB Strobe @ 120 Pulsar @ 240 : https://ibb.co/Kz9X1bWd

olain wrote: ↑

16 Jan 2026, 04:00

kyube wrote: ↑

15 Jan 2026, 13:55

olain wrote: ↑

15 Jan 2026, 08:24

I was hoping to upgrade from my existing Acer XV272UKF 300 hz IPS panel, but first impressions aren't as good as I had hoped, unfortunately. That Acer monitor has excellent brightness when utilizing its backlight strobing "VRB" @ 300 hz / 300 fps, no g-sync, which is a framerate I get in the fast paced FPS games I play. It also has good motion clarity, as I seemingly can't really see an upgrade moving to the 280 hz OLED panel, or this brand new 360 hz G-sync Pulsar ASUS monitor.

I don't like looking at this monitor when browsing / desktop usage, I get more eye fatigue than on my Acer's Innolux 300 hz panel, this is with and without Pulsar enabled. This is somewhat mitigated by using the built-in sRGB mode, which really dulls (and locks) the brightness, but yeah, this is probably highly subjective.
The monitor can become very bright, 500 nits it seems, even with Pulsar enabled, it is super bright.

Is the XV272UKF a KSF/PFS based display? Are you able to notice red fringing on it when VRB is enabled?
I assume there isn't the ability to adjust the pulse width to specific settings & it's a fixed pulse width?
Namely:
300Hz → ~3,333ms
25% PW → 0,83325ms (what you would get on PULSAR or ULMB2 on the XG27AQNGV)
20% PW → 0,6666ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")
15% PW → 0,49995ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")

THe former complaint might be related to the QD-based backlight.

Not sure what you are asking, but the 300 hz display I already have, has 2 strobing mode, normal and extreme, with different pulse widths. Only Normal is playable, as Extreme makes the display too dim. Either way, with the normal mode, @ 300 fps you get a 600 hz motion like LCD clarity, which seems just as good as the 280 hz 4.th gen WOLED or this new 360 pulsar monitor.
BUT my big concern is not so much that I cant see a difference at the high 300+ fps motion, but in _all_ the reviews, it is said that even @ 120 fps, this Pulsar will seem like 360+ FPS motion clarity, however, I cannot see that my self. I see alot of blur @ 120 fps, and its the same with Pulsar disabled. This worries me, and makes me think that something is wrong with my unit.
I have the latest nvidia driver and beta nvidia app installed. This behaviour isnt changed turning off v-sync.

I figured out how to objectively see if strobing was on, I took still images @ 1 / 1000 sec shutter speed:

No Strobe 300 / 360 hz : https://ibb.co/LXhCxtgb
VRB Strobe @ 300 and Pulsar @ 360 : https://ibb.co/4n1vc8M6
VRB Strobe @ 120 Pulsar @ 120 : https://ibb.co/hF42t5R5
VRB Strobe @ 120 Pulsar @ 240 : https://ibb.co/Kz9X1bWd

Did you check testufo.com? I'd be surprised if you cannot see the differences with different refresh rates and strobing settings there.

Baron of Sun wrote: ↑

16 Jan 2026, 05:12

olain wrote: ↑

16 Jan 2026, 04:00

kyube wrote: ↑

15 Jan 2026, 13:55

olain wrote: ↑

15 Jan 2026, 08:24

I was hoping to upgrade from my existing Acer XV272UKF 300 hz IPS panel, but first impressions aren't as good as I had hoped, unfortunately. That Acer monitor has excellent brightness when utilizing its backlight strobing "VRB" @ 300 hz / 300 fps, no g-sync, which is a framerate I get in the fast paced FPS games I play. It also has good motion clarity, as I seemingly can't really see an upgrade moving to the 280 hz OLED panel, or this brand new 360 hz G-sync Pulsar ASUS monitor.

I don't like looking at this monitor when browsing / desktop usage, I get more eye fatigue than on my Acer's Innolux 300 hz panel, this is with and without Pulsar enabled. This is somewhat mitigated by using the built-in sRGB mode, which really dulls (and locks) the brightness, but yeah, this is probably highly subjective.
The monitor can become very bright, 500 nits it seems, even with Pulsar enabled, it is super bright.

Is the XV272UKF a KSF/PFS based display? Are you able to notice red fringing on it when VRB is enabled?
I assume there isn't the ability to adjust the pulse width to specific settings & it's a fixed pulse width?
Namely:
300Hz → ~3,333ms
25% PW → 0,83325ms (what you would get on PULSAR or ULMB2 on the XG27AQNGV)
20% PW → 0,6666ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")
15% PW → 0,49995ms (maybe what your ACER targets @ 300Hz since it mentions "0.5ms MPRT")

THe former complaint might be related to the QD-based backlight.

Not sure what you are asking, but the 300 hz display I already have, has 2 strobing mode, normal and extreme, with different pulse widths. Only Normal is playable, as Extreme makes the display too dim. Either way, with the normal mode, @ 300 fps you get a 600 hz motion like LCD clarity, which seems just as good as the 280 hz 4.th gen WOLED or this new 360 pulsar monitor.
BUT my big concern is not so much that I cant see a difference at the high 300+ fps motion, but in _all_ the reviews, it is said that even @ 120 fps, this Pulsar will seem like 360+ FPS motion clarity, however, I cannot see that my self. I see alot of blur @ 120 fps, and its the same with Pulsar disabled. This worries me, and makes me think that something is wrong with my unit.
I have the latest nvidia driver and beta nvidia app installed. This behaviour isnt changed turning off v-sync.

I figured out how to objectively see if strobing was on, I took still images @ 1 / 1000 sec shutter speed:

No Strobe 300 / 360 hz : https://ibb.co/LXhCxtgb
VRB Strobe @ 300 and Pulsar @ 360 : https://ibb.co/4n1vc8M6
VRB Strobe @ 120 Pulsar @ 120 : https://ibb.co/hF42t5R5
VRB Strobe @ 120 Pulsar @ 240 : https://ibb.co/Kz9X1bWd

Did you check testufo.com? I'd be surprised if you cannot see the differences with different refresh rates and strobing settings there.

I can see a difference at this test, https://testufo.com/ghosting, where the text on the ufo is more clear with Pulsar enabled than without. However, I cannot perceive this difference in games, at all.
I also tried the MPRT test https://testufo.com/mprt#pps=1920 but I honestly can't say I understand its use or purpose. At that test, I see the numbers, digits, have a shadow of them self occur before the sharp rendition of them. If that is ghosting, or reverse ghosting, I don't know, but its there at 1920 pixels/sec. If I disable Pulsar, the inverse ghosting is actually less perceivable. This is at 360 hz.
Also if I set the refresh rate of the monitor to 120 hz, Pulsar disables itself, thus explaining my previous camera image at 1/1000 shutter time not showing any strobing at that refresh rate.