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This ATC driver? ATC Midrange Units

I've been looking for a mid driver that I can crossover a little higher than your conventional 2-3khz. Taking a look at http://www.scan-speak.dk/datasheet/pdf/12m-4631g00.pdf http://www.tymphany.com/files/NE123W-08-HS%20Rev1_0.pdf how high would I be able to take these If I want to restrict...

They all just link to the "about us" page. Another question; as I've been pondering the designs, it seems that many of the drivers have quite low resonances. Do I have to tune the QWT to the resonant frequency of the speaker, or could I go a little higher to get more output in the musically...

As big as it needs to be. I have 7 x 4 sheets of mdf, but can get bigger if necessary. edit: also, the Volt links are dead

TLS Guy, I was just about set on using SEAS CA22RNX as my bass unit, then I saw that the distributor for SEAS here also carries Volt, which is what PMC uses in their larger monitors. Can you offer any advice on this front? I've played around with the idea of using one of the 8-10" units as my...

Thanks Martin, I've been using your site extensively and am planning on purchasing the mathcad worksheets anyway, just because past the speakers I'm building, it fascinates me to play with all the parameters. Why do you say that the 1/5th placement is a compromise people prefer, over the 1/3rd...

I was planning on using scrap MDF to mock up different enclosures, I may create a ported insert that fits into the rectangular mouth of the QWT. How exactly would I do the calculations on the port diameter and length? Same as a regular ported box with the volume of the QWT equaling the volume...

Whew, okay one step at a time. What initially sparked my interest in TL designs was listening to PMC speakers. They utilize a tapered transmission line (but at a much lower ratio, something more like 1.5:1)((Additionally, they simply place acoustic foam on certain faces of the TL to absorb the...

If you could enlighten me on the benefits/disadvantages of both, that would be incredible. As much as I've had trouble figuring out transmission lines, I've seen even less on mass loaded lines.

A Seas CA22RNY

I'm trying to build my own speakers using off the shelf drivers, and after hearing several transmission line speakers have decided that is the direction I absolutely want to pursue. I'm fairly competent at electrical and mechanical calculations, but I have to admit the math (and the lack of...

http://www.scan-speak.dk/datasheet/pdf/26w-8534g00.pdf H1316-08 CA26RE4X Similar prices, similar drivers, I was assuming they were meant for similar applications.

When I compare two nearly identical 10" woofers in the same price bracket from two reputable manufacturers, and one rolls off at 100hz while one is flat down to 40, it makes me think they've measured the frequency response differently.

Thanks for the reply. The reason for the lack of specifics is that it was a rather general question. I'm trying to get an idea of the response ranges of the various drivers out there and it would seem that companies measure in very different ways. I don't currently have software i can plug...

As a fairly proficient EE/ME, I'd like to try my hand at building my own loudspeakers (I have the opportunity to contract out the cabinets at a great price). As I'm perusing the various driver suppliers, I notice that there seem to be discrepancies in the way different manufactures take...