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ISOTEK - Full System Enhancer CD

https://www.musicdirect.com/equipment/isotek-full-system-enhancer-burn-in-cd-version-2

I had tried several system cleaning CDs to have some modest effect.

But this one from Isotek give jaws dropping effect of cleaning soundstage with reducing hiss noise.

It is worth every penny.

MusicDirect offer 60 days of satisfaction guarantee.

I recommend other member to try this inexpensive tweak.
128x128shkong78
geoffkait's avatar
geoffkait
23,365 posts
 
Shout out for the original and still the best for speaker placement plus the burn in track works very well - XLO Test CD. I’ve only mentioned it like a hundred times.
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shkong78's avatar
shkong78 OP
1,485 posts
 
I also have XLO burn in disk which did not impress me.

But Isotek did wonder to my system in cleaning the sound and reducing hiss noise.
geoffkait's avatar
geoffkait
23,365 posts
 
The XLO Test CD works very well but you have to follow instructions and run it continuously for two - count em! - weeks. Then you will be impressed. Rome wasn’t built in a day. 😬 What hiss noise? Tape hiss noise? Did you use the Isotek disc to position your speakers?
shkong78's avatar
shkong78 OP
1,485 posts
 
I also have Isotek positioning disk which did not impress me.

I used to have slight hiss noise out of tweeter and I had tried to reduce it with grounding block.

But after trying Isotek CD enhancer, such hiss had been almost gone.

Viola this disk saved me lot of money.

Grounding blocks are also pretty expensive.
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