Damaged HS80M from too much plugging/unplugging ?

[Althos]

Hello, I've had my Yamaha HS80M for around a month and a half, and I've had issues with my sound system for a while (buzzing noises,...) and tried to diagnose them myself, however, being a novice, I didn't realize you had to turn off the speakers before unplugging or cutting the power on the power strip, so I did quite a lot of times.... the white noise seems to have worsened, may I have damaged my speakers' power supply ? I've got white noise playing on my tweeters even when my balanced cables are unplugged, the buzzing that my balanced cables were picking up from my PC also worsened, it is pretty noticeable in a calm environnement now, annoying enough that I've to put headphones on because of the high frequencies emitted in a calm environement 

 

Should I bring my speakers to a professional ?