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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

auronthas

Showing 2 responses by carlsbad2

carlsbad2's avatar
carlsbad2
1,382 posts
 

The Novaris is a component that should be removed from the system to see if it is causing the noise.  If you need more outlets get a power strip.  Power strips are horrible for sound but use it for troubleshooting.  

To answer your question, I'm not familiar with Novaris but I googled it.  For $299 it isn't a high quality power conditioner. 

Best of luck.

Jerry

carlsbad2's avatar
carlsbad2
1,382 posts
 

Removing/swapping components, one at a time, you should be able to narrow it down to one faulty component. 

However, the hardest problems are when 2 unrelated factors combine to cause the issue so it could be harder to figure that out.

Removing/swapping is the path forward.

Jerry

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