|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
70.208.201.97
In Reply to: RE: nodes posted by unclestu on June 14, 2014 at 15:13:11
That makes a lot of sense. I currently am listening to a preamp that is very sensitive to cone placement. I'm using the mapleshade big brass ones and have been moving things around quite a bit. I'll give your idea a whirl.
Thanks
Follow Ups:
Which model Mapleshade brass cone are you using?
See link:
I'm using the original heavy feet brass footers. I like them more than the next generation feet with the micro point. I have both so I have compared. Of course I have the Boston Audio tone blocks, isoblocks, golden sound Jumbo cones, etc. They all sit on 4 inch thick Maple blocks.
Thanks
What footers or pads (if any) are placed between the bottom of the maple blocks and the surface (such as a rack shelf) they are placed upon?
Under the four inch thick maple platform I have a set of mapleshade isoblocks which than sit on top of another four inch thick block of maple which is supported by another set of isoblocks. These sit on the floor. I use this arrangement under my CD player, amp, preamp, and each part of my external crossover for my speakers. I have a lot of maple blocks in my listening room. The isolation is very good such that any changes in the brass footer under each component is quite audible. It keeps me out of trouble playing around with different isolation/coupling techniques. Ps thanks for all of your advice!
I can understand why you like to keep out of trouble playing around with different isolation/coupling techniques. It can be a difficult progression.
That said, I have suggestions that might be worthy to try in order to modify the stock configuration.
Cool!
Images: Carbon fiber composite discs (30mm W x 10mm H), Herbie's Audio Lab Thin grungebuster Dots, Herbie's Audio Lab Big Fat Dots (dBNeutralizer pads).
I happen to use a somewhat similar DIY amplifier stand configuration positioned directly on the floor, that I use for a stereo power amplifier, that feeds a pair of passive subwoofers with an outboard active crossover unit. However, the configuration of the amplifier stand features two kinds of wooden boards, each of a different thickness, and different footers than yours are implemented to support and decouple the stacked boards, and with different cones than yours for the component that is positioned on top of them:
The bottom board is 2-1/4 inch thick Maple, coupled to the floor with a tripod set of carpet-piercing brass tiptoes. The top board is 1-3/4 inch thick Lyptus (hybrid eucalyptus) placed on top of the Maple board, decoupled by a set of four Herbie's Audio Lab Big Fat Dots (dBNeutralizer pads). The power amplifier is supported by a tripod set of Black Diamond Racing Pyramid Cones MK4 positioned point-side-up, with a Herbie's Audio Lab "Thin" Fat Dot (1-5/16" W x 1/8" H dBNeutralizer pad) adhered to the base of the cone for use as a decoupling interface with the surface of the platform.
Here's a configuration that I think may improve performance vs. your current configuration:
1. Place a Herbie's Audio Lab Thin grungebuster Dot (the Thin grungebuster Dot, not the regular grungebuster Dot), black color, with adhesive backing at the base of each brass cone (the opposite end of the point) to help the cones work more efficiently and mitigate microphonics. Measure the flat surface area of the brass cone base. See link:
http://herbiesaudiolab.net/gb.htm
2. Instead of placing the point of the cone directly on top of the Maple platform, use a set of carbon fiber composite coupling discs (30mm W x 10mm H), with a 1-1/8 inch diameter Herbie's Audio Lab Thin grungebuster Dot (the Thin grungebuster Dot, not the regular grungebuster Dot), black color, with adhesive backing on the base of each coupling disc to help the cones work more efficiently while dissipating vibration/mitigate microphonics. See links:
http://www.ebay.com/itm/3pcs-30mm-Carbon-Fiber-Spike-Isolator-/181439345497
http://herbiesaudiolab.net/gb.htm
3. Instead of Isoblocks, use a set of four Herbie's Audio Lab Big Fat Dots (dBNeutralizer pads) to decouple and efficiently block sound pressure waves from entering the system via the floor, as well as decouple and provide a low-compliance vibration blocking interface between the two boards. See link:
http://herbiesaudiolab.net/spkrfeet.htm
YMMV, so you might at first consider trying a complete configuration for just one platform system, then if you like what you hear, you can order more for the other platforms.
A cool idea-I will try it in stages and report back. Again, my thanks to you! This is the sort of conversation that makes the asylum a great place to hang out. I'll try the Herbies on the tops of the brass first and go from there using my CD player as the test bed. I have used the Boston Audio Tuneblocks as well, but found the sound a little thinner in the mid bass. I guess I won't be going out for awhile now.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: