[Robert57]

I have spoken with one D200's owner who used Stillpoints ERS paper inside each D200 case just as a precaution to contain any possible residual EM and RFI noise. On the other hand, I have not heard that such EM noise is an issue with Dusty's design, unlike most other Class D amps. Could Dusty or others please comment on whether they have tried this ERS tweak ($25 per sheet), and whether it has any value in sound quality, or reduced interference with other components? I am planning to place the D200 monos side by side, one shelf immediately beneath a SS preamp in a very tight rack set-up.

Thanks.

Rob

[Charles Calkins]

Never tried it. Never had any EM noise or things like that. My D-200"s are dead quiet.


                              Cheers
                             Charlie

[CIAudio]

I have spoken with one D200's owner who used Stillpoints ERS paper inside each D200 case just as a precaution to contain any possible residual EM and RFI noise. On the other hand, I have not heard that such EM noise is an issue with Dusty's design, unlike most other Class D amps. Could Dusty or others please comment on whether they have tried this ERS tweak ($25 per sheet), and whether it has any value in sound quality, or reduced interference with other components? I am planning to place the D200 monos side by side, one shelf immediately beneath a SS preamp in a very tight rack set-up.

I haven't tried the ERS paper, but I doubt it would make any improvement being that the D series amps already have very low EMI/RFI.

[Robert57]

Okay, thanks for the reassuring reports.

Rob

[gme109]

I have spoken with one D200's owner who used Stillpoints ERS paper inside each D200 case just as a precaution to contain any possible residual EM and RFI noise. On the other hand, I have not heard that such EM noise is an issue with Dusty's design, unlike most other Class D amps. Could Dusty or others please comment on whether they have tried this ERS tweak ($25 per sheet), and whether it has any value in sound quality, or reduced interference with other components? I am planning to place the D200 monos side by side, one shelf immediately beneath a SS preamp in a very tight rack set-up.

I haven't tried the ERS paper, but I doubt it would make any improvement being that the D series amps already have very low EMI/RFI.

What about protecting the D200's from outside EMI/RFI sources? I hear a slight improvement when placing a Shaki Sone on top of the D200's, and a sheet of ERS paper underneath. My guess is, it's protecting the D200's from outside sources of EMI/RFI.

[CIAudio]

What about protecting the D200's from outside EMI/RFI sources? I hear a slight improvement when placing a Shaki Sone on top of the D200's, and a sheet of ERS paper underneath. My guess is, it's protecting the D200's from outside sources of EMI/RFI.

Could help if you have another component in close proximity that spews noise. I would first try applying the paper to the offending component (rather than all other components surrounding it).

[BobMajor]

I've tried ERS with various components. I felt that it helped slightly in power supplies but that it caused reduction in dynamics if it was anywhere near an analog signal. I removed it from the transformers of a preamp I tried it with because of this. But I left it in the VAC-1 and in my "Ultimate Outlet" and in a Brickwall surge protector. You could use it to shield power cables which weren't already shielded.