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
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- 22 posts total
@ellajeanelle Thanks for your insights on swapping the noisy components to no-noise outlets, that's brilliant idea to trouble shoot. You gave me "light bulb" that the Novaris PP10 surge protector/noise filter come with 8-outlet, the "noisy" one are first row... I may look into detail if the ground/earth terminals and other (live/neutral) terminals are secured/tightened. About the noise I described... it's like hissing sound, as I read from google, some said they are pretty normal as my amplifier has a higher amplifier gain of 28dB, my speaker sensitivity is 85dB/m... only when i step closer to tweeter, I could hear the hiss sound. @carlsbad2 Thanks for your tips, yes, I have done that, I will do few more times to isolate/mitigate if it is due to defective unit or if it is common "leakage" electric noise, I could further check if the unit is come with three-wire though they are using IEC outlet, in some instances, some may only terminate two-wire and leave the ground/earth "floating". @mijostyn Thanks, I will check if it is DAC defect. I don't have any other DAC unfortunately. |
While I am isolating the hissing noise from tweeters from potential components. I am not sure if the Novaris Surge Protector/Noise Filter, is it a good power conditioner? I recalled I have no such issue with my previous power conditioner of Tacima CS947 (6-outlet) , I upgraded last year to 8-outlet Novaris PP10.
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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 |
- 22 posts total