Behringer k1800fx buzzing noise

[svidenovic@hotmail.com]

Hi, I am having an issue with my Behringer K1800FX amplifier. It makes a buzzing noise. The sound coming from headphones is fine, this seems to be coming from speakers or maybe crossover? I have a video of the noise here: https://1drv.ms/v/s!Apsx-nPgfDBCg8Qt...XRHDg?e=9NsVTk
Thanks
Sveto

[Jon Snell]

Could be crossover distortion or faulty speaker or a bad connection ... but I couldn't hear any issues.