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In Reply to: RE: BDR Pyramid Cone Mk4 posted by Duster on March 25, 2014 at 18:37:05
Image: Herbie's Audio Lab "Thin" Fat Dots
When implemented for the previously mentioned application, I've gladly found without caveats:
When a Herbie's Audio Lab "Thin" Fat Dot (dBNeutralizer pad) is placed between the base of each BDR cone and the surface they are placed upon, the presentation became more full-bodied, with better fleshed-out images, a notably more authoritative bottom end, and more relaxed treble energy (no sense of hollowness nor peculiarity).
In this particular case, the BDR cones are positioned point-side-up, with a "Thin" Fat Dot adhered to the base of each BDR cone with RTV silicone, then placed on a 0.75" thick acacia tonewood plinth supported by a set of six thin felt pads, which rests upon a rigid MDF rack shelf surface.
Next step might be to try a 0.75" hickory tonewood plinth rather than acacia, but I'm currently satisfied as-is.
Follow Ups:
Hi Duster,
What will be the result if the thin Fat Dot are replaced by Grungebuster Dots? Thanks
While I've not used grungebuster Dots with the BDR cones, I have used them with a number of other cones, coupling discs, and various other vibration control footers. I find a thin grungebuster Dot for the purpose (not the regular grungebuster Dot) tends to allow the energy transfer function of a cone/coupling disc/footer to be more efficient and to reduce the microphonic influence of the interface for a lowered noise floor, while essentially maintaining the sonic signature of a cone/coupling disc/footer. On the other hand, the dBNeutralizer pad does more to actually block vibration while the grungebuster material tends to function as a more subtle vibration control "assistant", if that makes sense. For some applications, I've successfully used a dBNeutralizer pad stacked with a grungebuster Dot (either thin or regular version) to good effect. Even which pad/dot is stacked upon the other tends to make a difference from a system tuning POV. YMMV
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