CR5-X BT : Good... at this price

I bought these monitors as a "backup-pair" to use in summer house, where I tried to make a super-basic home studio, a lot more essential than the one I use for the rest of the year. I decided to go for this brand mainly for the enthusiastic reviews I was reading around these monitors. They also were the cheapest among my choices, so why not to save here a bit and invest somewhere else? After more than a month I have to say, I'm a bit disappointed: maybe it's my fault in thinking that they could be ok to be used for a Nord Electro, but as soon you go for some full bass sounds or some high, or particular resonance sound, the here are several types of vibration that disturb the sound a lot, even just above the mid volume level. This could be a particular application, for more standard sound they are fine (bass could be a bit pumped though). I know you can't compare monitors with headphones, but the sound you hear with a DT-770 pro when I play the Nord keyboard it's far from what come from these speakers. So I guess they are more suitable for a "light-hearted" use, the BT option it's super handy for that. If I could change the past I'd go for a less cheap pair hoping for better quality. Pros - Price - BT and powerful sound Cons - Vibration and disturbs for sounds that go a bit out of the ordinary