Bought myself a Corsair K70 LUX RGB with MX Silent switches today and ever since I started using it, all I keep noticing is a very annoying "ping" or "resonating" sound when I type. It's most noticeable when pressing the backspace and enter buttons near the centre of the keyboard; especially when I need to press them multiple times in quick succession, but it also just continually happens during normal typing with several other keys to varying degrees. This video shows exactly what's happening, although mine is most notable on enter and backspace. This video also shows it, although it's a little bit harder to hear and is much more noticeable in real life. The sound is due to the aluminium frame/plate and I can replicate it by by simply knocking on the aluminium with my knuckle. Even if I knock on the plastic underside or palmrest it can create the same sound. I can also just push on some of the keys firmly once so that they bottom out (without letting my finger off of them for them to go upwards again) and I can hear the same annoying resonating sound. Admittedly I do type a little aggressively, particularly when using the spacebar, delete, backspace and enter buttons - but I'm not exactly beating the crap out of my keyboard either. If I make an effort to type softly, I do find that the sound is almost unnoticeable, but this just feels unnatural and I feel I shouldn't really have to change my entire typing style on a $180 keyboard. The sound is really bothering me at the moment and as much as I love everything else about the keyboard, at this stage I'll be hoping to return it because the sound just annoys me too much - particularly right now when it's late at night and there's no other noise in the room. Just wondering if anyone else with a mechanical keyboard notices this? Particularly other K70/K95 or metal-plate keyboard owners. Presumably if I get a mechanical that's completely plastic I won't have this issue? Such a shame, I really love the volume rocker and palmrest on the K70.