A reappearance of Black Diamond Racing?


I received an email from Music Direct a couple weeks ago offering the BDR shelves again. Anyone else notice this? I use them extensively in my system and actually use carbon fiber sheets in DIY projects. I'm a big fan of CF's usefulness in audio.
128x128slaw

Showing 10 responses by bdp24

I just snagged another set of Pits on Audiomart. The seller still has 6 Pucks and 3 Thick Pucks listed at good prices.

"Speak of the Devil and he will appear". Upon going into New Listings this afternoon, I quickly saw a set of four BDR 2-3/4" Pucks, exactly what I have been intent, as previously stated, on obtaining. The asking price was $120 shipped, but my offer of $100 was immediately accepted. My use of the Pucks may be unusual, but part of their beauty is in their versatility.

I have a set of Eminent Technology LFT-8b loudspeakers with dedicated Sound Anchor stands (a bit of a misnomer; it is more a base than a stand), the stand being a 3-point design. Meaning, the stand has threaded holes in three locations for the provided spikes. One location is in the middle of it’s rear side, which sits just behind the back end of the speaker’s woofer enclosure. The other two are at the front end of the two "limbs" which extend out in front of the LFT-8b (picture the front legs of the Egyptian Sphinx, or of your chillin’ dog).

But I decided to replace the spikes (they’re so 20th Century ;-) with Townshend Seismic Pods, for isolation from rather than coupling to the floor. That’s fine, but the Pod isn’t really "happy" on a carpet and it’s padding (neither is the IsoAcoustics GAIA), as it’s bottom plate is just a thin sheet of, I presume, steel. I have a set of four BDR Those Things (2-3/4" square), and it occurred to me they would make a fine base for the Pods. Great, but I have only four, two shy of my needs.

Upon looking for another two Those Things, I discovered the BDR Puck, which is simply a round version of the Thing. And, the Puck is 2-3/4" in diameter, same as the bottom plate of the Pod. Too cool! So of course I decided I had to have the Pucks, a perfect aesthetic match for the Pod. Six would be great, but as the back Pod can’t be seen, four will suffice (my delicate aesthetic sensibilities able to deal with such unsightliness ;-). And I now have them.

Speaking of the Townshend Pod, it is weight rated and available in a bunch of "sizes". Since there are two support points at the front of the SA stand, and only one at the rear, the one at the rear "carries" more weight (the LFT-8b’s mass is centered on the middle of the SA stand), and requires a stiffer spring. For any LFT-8b owner reading this and considering trying a set of Pods, I found two size "C" Pods on the front legs and one "D" on the back side of the stand to balance perfectly. As each size Pod has double the weight capacity of it’s lesser neighbor, that makes sense.

Any LFT-8b owner not wanting to use the Sound Anchor stand (I don’t know why, it’s fantastic!), Townshend also has loudspeaker Podiums and Bars which incorporate the Pods in all four corners. They are considerably more expensive than a set of Pods, but the owner of a pair of Magicos may not care ;-) . As a matter of fact, Audiogon member folkfreak has his Magicos sitting on Townshend Podiums, and love’s ’em. Alas, he is in the process of packing up and leaving Portland, so I most likely won’t again hear a pair of Magicos until my next trip down to L.A. My old pals at Brooks Berdan Ltd. are a Magico dealer. Eminent Technology, too. It was Brooks who turned me on to the ET’s. Music Reference as well.

Thanks a million @slaw. I don't know how I missed that, but they actually have the pits and pucks in stock, $55 apiece.
Okay, thanks mofi. If anyone has a couple of Those Things (2-3/4" square x 3/4" thick), or either the Pucks or Pits (both 2-3/4" round x 3/4" thick, one having a 1/4-20 threaded insert on one side and a dimple on the other, the other one 1/4-20 threaded all the way through) let me know, and we can arrange for you to put them up on Agon for me to buy.
I just unpacked a couple of Torlyte shelves I bought back in the 80's or early-90's. I'm going to try one under my Townshend Rock Elite table, to see if Torlyte is still a contender. VERY low mass, high stiffness-to-mass ratio, but made of wood (fabricated into a honeycomb structure). Torlyte was popular when the Linn Sondek ruled the world.
George Merrill was at one time (in the 1980’s, at least) putting a top layer of lead on his turntable platters, in support of the notion that lead provides a better mechanical impedance to the vinyl of LP’s than does any other material. That was followed by the carbon graphite mats made by a couple of companies. Like everything else, everyone has their opinion, with theory to back it up.
mc, Groovetracer makes both an acrylic and Delrin version of their Rega replacement platter, which are reported to sound quite different. VPI switched to acrylic for their platters for a while, but quickly considered it a step backwards from the Delrin they were using (for the top layer of the TNT 2-5 and Aries 1 platters, and the entire HW-19), and switched again to first stainless steel (in the TNT-5) and then aluminum.

Oy millercarbon, a lead shot loaded acrylic turntable platter! Geoff also disapproves of lead. Both of my VPI’s have the 1.25" thick TNT platter with a thin sheet of lead bonded to the bottom of the aluminum, a very effective vibration sink. I have both BDR and Goldensound DH cones, using the DH as feet for my Townshend Rock Elite table, whose plinth is an upside-down "baking pan" filled with gypsum. The ceramic DH feet are a better mechanical impedance match for the table’s gypsum bottom surface, but if I had a carbon fiber plinth I imagine the BDR cones might prevail. A carbon fiber turntable plinth---brilliant!

Just about any cone is superior to the Mod Squad Tip Toe, which are fabricated of a very soft aluminum. Under a heavy load, in very short order the tips of the cones become compressed and flattened. Okay design, terrible execution.

The shelves are pretty expensive, but sets of Those Things (2.75" square by 0.75" thick blocks) show up used occasionally for around $100, and may be just as effective. The cones new were only $60/3, and are even cheaper used.