ISOTEK - Full System Enhancer CD

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.

Maybe there was a snake in your tweeter. 🐍 It’s highly doubtful that hiss can be affected by either grounding or burn in. Just my 2 centavos.

Another +vote for IsoTek CD enhancer.

Isotek Enhancer CD is also very good to burn in new earphone or headphone.

Would it be wrong to assume you used the Isotek CD to burn in your HIFIMAN RE-800S earphones?