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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

RE: nice

Uncle Stu,

Since you replied to Ringwear with comments on the picture of my speaker, let me respond.

I don't have spare Marigo Dots so tested the layouts with just three Dots and 11/3/7 o'clock was still best for the mid-range and a switch to the 12/4/8 that you recommended was noticeably better for the woofer in the context of my ears and environment.

Cutting the cable ties off the bundled wires coming off the Toroidal transformer and separating each bundle from the other two certainly leads to greater separation (your website tweak). This last few days I have substituted cable ties for all amplifier machine screws with nuts, wherever possible nylon or at least brass for almost all the stainless steel machine screws (they are almost all magnetic in my case) and the reduction in distortion has been surprisingly large. I previously thought a low noise floor was primarily attributable to minimizing corruption from ground (component and domestic accessories etc.) but, no, EMI is local and lethal in the many supplied machine screws of an amplifier. The problem comes in replacing small screws for which there is no way to find specifications for Internet ordering and for which there are no nylon substitutes. Cannot hear speaker teardrops yet, perhaps because I design badly or have tested insufficiently.

Incidentally substituting a white for a black cable tie to retain the Toroidal transformer to the amplifier case does indeed result in a substantially more open sound just as you say.

Many thanks for your help.

DG



Edits: 10/13/14

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