Yeah, Im on a third unit from a different vendor, and its got exactly the same problem! Im veeeeeeery disappointed, I really love this model, but I just cant believe it Asus fkd up the whole GL product line! I keep switching them, cuz thats what tech guys at stores propose, everyone admits that this is not normal! Also, I saw someone said on this forum that it might be just a faulty bulk of that same model that arrived in my region (Montreal), and I kinda wish that was true...
As for their support, I dont know... to me its in-existent. I asked them questions before, about my previos laptop that was giving me hell after the win 10 upgrade (which they advertised to be fully compatible), but they never gave me any advice only offered me a 60$ diagnostics over 2 weeks cuz my warranty had expired.
But this time they topped themselves. I wait replies for 4 days, and there are 3 people (wtf?!) are talking to me all at the same time copy-pasting the main part of the message, with completely different solutions!!!!!
x: Please note that there should not be any buzzing sound coming from your speakers. Can you please verify if you only hear that sound when the unit is connected to the power cord and adapter? Also, did the unit fell before you started noticing this issue?
y: I understand that you want to know if this device is affected by coil whine. Your case was reviewed by our engineering team which confirmed that this device is not affected by coil whine.
z: I would like to apologize for the disappointment that the laptop ROG GL703 series have been giving you. Our gaming series laptops do omit at a certain frequency that is noticeable to those that have sensitive ears. Understand that this at no fault of your own. I personally have heard from coworkers that they too hear the electronic buzzing and myself included can hear it faintly in the ROG series. The higher frequency is more common amongst our gaming series since.
I even provided several sample recordings to show what happens when the device is plugged in, on battery, low/high performance power mode, and measured the noise with an app and it peaks at 4000Hz and -70 dB! Even the guys at the store express their regrets, and they clearly honest, and not just stand by their corporate policy (best buy). Yet asus engineers and whoever else dont even bother to reply in 4 days (which i think is enough to look up any information) to very specific questions, even though I notify them I only have 14 days to figure out what to do. I don't even mention its a 2000$ (in Canada) product!
Complete mess!