No, the tweeter is not the issue. You said it starts when you add in the DAC. It is a problem with the DAC and more than likely it is defective. Try a different DAC if you can. Try the DAC in a different system if you can. Take it to a store and see if they will plug it in for you.
Help needed to eliminate unwanted noise from tweeter
Hi all, need your advise to eliminate annoyance "sizzling" noise from speakers' tweeters (close listening range).
I have isolated all the power supply of audio equipment. Then plug in one by one in sequence as following: -
a) Integrated Amplifier - Accuphase E280
b) CD Player - Sony CDP-997 (standby power) - no noise observed from tweeters even my amplifier volume knob is at set to lowest position.
c) DAC - Denafrip Ares II (standby power) - Once I plug in, I could hear the sizzling noise from tweeters when my ear is near speaker.
d) Music streamer - Unplug Ares II, and plug in Eversolo DMP A6, similarly I could hear noise from tweeters.
From the above, could someone pointed me what's wrong with these two (2) units? They are three-prong with ground pin, they are connected to my Novaris Surge Protector multi-gang socket outlet and to wall recepatacle, there's earth/ground continuity.
Your advise will help me to isolate the 'noise' issue for cleaner auditioning with thanks.
Regards,
Auronthas