DevilDriver

Uploaded 50GB in the last 12 hours on What.

From when I last spoke with Scott, business with AA seems to be going pretty well. Their focus is a lot more on the B&M side now...something internet people will just have to deal with. I doubt there is any question about the AA line that couldn't be answered by the SSA sales group.

Yawn.... Love a day off.

http://audiojunkies.com/blog/854/incrimina...g-up-production

Really? I was up all night trying to figure it out. And the competition has a bunch of Little Bo Peeps, right?

A friend asked me to hook him up with some rap because of the music collection I have....I realized I don't have a single rap album on my hard drive (although I do have a Sage Francis mash-up, if that counts) and the only popular songs I remember are at least 5 years old. I'm out of touch. Probably for the best, anyways.

Snow is fun. A lot.

I haven't been there in a long time. Too many "what product is better than this product?" questions.

FullSizeChevy.com

Videos taken down?

Almost 4400 over here.

Blah, can't put a sentence together today.

Mmmmhmmm.

Would be better if it were evening Hop. Be nice when the day is over.

No kidding. There were two questions that were blatantly anti-God and held no importance to the debate.

Sounds very interesting, Nick. Few drivers there I wouldn't mind having.

If you want something very similar to the Brahma 12": http://www.acoustic-visions.com/~acoustic/...drivers/shivax/

6.5 over here.

I love snow and cold but this winter is already irritating me, which is odd.

Anderson Cooper is so much better leading debates than Wolf Blitzer.

Ok, that was more interesting. Talking about "Don't Ask, Don't Tell" with a question posed by a ~60 year old gay man who was in the army that doesn't like beating around the bush.

Republican GOP debate has been disappointing thus far.

Christmas lights have been up a couple weeks here. Had to beat the snow.

pics of waht? the cooling option on the pole? i have a fully loaded btl motor here, if people want pics.. I think they want to know the difference between the axial cooling and the heli-cooling machined in the motor. The BTL just recently switched to heli-cooling.

This is something I should perhaps clarify. There are many inter-related aspects of efficiency. Despite the small coil, XBL^2 is more flux efficient than your standard underhung driver (although still not as flux efficient as an overhung driver). This is gained through the rebate in the top plate and/or the rebate in the pole piece. But this also means two things: 1) The steel in the heart of the stroke is further away from coil. 2) There is less steel in the top plate and/or pole piece to carry the flux. The potential impacts were made much too simple by myself in the original thread, so I will expand on this a bit. In situation 1, this is only a really big deal if the flux paths are already totally saturated; if they aren't, the impact is minimal as the flux is "steered" elsewhere and jumps the gap anyways. Also, a small sacrifice in efficiency at the heart of the stroke is likely worth it to an engineer to gain efficiency with stroke...where other drivers have a BL that drops drastically as the coil begins to move (thus hurting the average efficiency over stroke), XBL^2 has a flat plateau till the coil starts to leave the gap (with even more travel after that as a fair bit of flux rests in what is called the "fringe field")...that's quite a bit of throw that is substantially more efficient than it's underhung or overhung counterparts....it's the beauty of flat, linear BL. In situation 2, again, saturation is the key. If the steel is at or approaching saturation (which is tough to do with the large top plates required for XBL^2 or underhung drivers), then yes, taking steel out of the motor is not necessarily a good idea if maximum efficiency is your goal (although it should be noted that a lot of companies do pole vents with the sole purpose of lowering BL by taking steel out of the motor). If the steel is not saturated, then the rebate will have a very small effect. And, as Nick pointed out, the coil is smaller and weighs less...since mass (Mms in thiele/small parameters) is a component of efficiency, lowering mass will increase efficiency. So there are a lot of things to consider there. In maximum theoretically possible efficiency, XBL^2 is typically lower than some other topologies (as does nearly every other low BL based distortion topology). However, in practice, it has efficiency that falls on par or exceeds many drivers. I said this on caraudio.com as well: remember that it is always the implementation of technology that matters, not the technology itself. For reasons such as this, I do need to update that particular thread a bit. And simply put, this is nothing but a great move on Stereo Integrity's part....don't let anyone else tell you otherwise, either.