Treble increased with Volume

[Hadi Ahmed]

Hello guys so i bought USB sound device and whenever i increase my volume the Treble or sharpness of the sound increases to max
like its fine in the middle of volume the bass and everything is fine but whenever i increase the volume the treble increases
i have checked the headphone with my mobile device the sound is fine their even with high volume so its a problem of USB device i suppose Any form of help is appreciated

 

[kerberos_20]

could be your mid/bass speaker have different impendance than your treble

 

[Hadi Ahmed]

could be your mid/bass speaker have different impendance than your treble

How can i fix that

 

[kerberos_20]

replacing cheap crossovers would help,, but u have headpones + usb dac...theses not much u can do tbh, replacing your usb dac...
creative has pretty decent phone amps