Testing 1, 2, 3, testing...

[Mark K]

Hi guys,

Just a quick note. Praxis follows the convention. See this link

http://www.listeninc.com/files/pdf/AES_94th_how_to_graph_distortion_measurements.pdf

I agree it's not always clear.

[Hdale85]

I looked at M-Audio's stuff before but didnt see a 5.1 usb solution. I'm gonna have a look again.

Just looked and this is the cheapest one i see that'll output AC3/DTS

http://www.m-audio.com/products/en_us/FirewireAudiophile-main.html

so a lot more expensive then what the card I have was. I think when i build my new HTPC I'll drop some cash on an M-Audio sound card or somthing better then the Audigy's. You know anything about the SB X-fi cards? are they not as good as they say as well?

I think when I build my new HTPC this is the sound card I'll use in it. It has 2 built in mic pre amps and will pass AC3/DTS through the SPDIF which the soundblaster cards wont do And 250 bucks is'nt bad :B I think i like the idea of having measurement equipment built into my HTPC.

http://www.m-audio.com/products/en_us/Delta1010LT-main.html

[atalio]

Hi guys,

Just a quick note. Praxis follows the convention. See this link

http://www.listeninc.com/files/pdf/AES_94th_how_to_graph_distortion_measurements.pdf

I agree it's not always clear.

Mark,
Great paper. I have it and coincidently read it just last week. It raises some good issues. I've moved the Praxis distortion discussion to the praxis website: http://cybermessageboard.usanethosti...opic.php?t=129

[capslock]

The MAudio cards are designed for semi-pro recording, and also work very well in HT applications, due to the DACs and circuitry they use. They're also quite good for measurement, and recomended by LspCAD and Soundeasy.

Well, I continue to be amazed how well my Delta 410 sounds. In my own DAC designs and CD player mods, I have never (not even with a ten foot pole) touched the kind of DACs, op amps and passives used on that card. Also, the clock generation and distribution and the supply decoupling and ground scheme are not top notch.

I have bought a second card, and one day, I'll just buffer the digital lines going from the DSP to the codec and use them to run my own DACs. You can synch the Delta to an external clock, so that would be sitting on the outboard DAC board as well..

[dwk]

I have bought a second card, and one day, I'll just buffer the digital lines going from the DSP to the codec and use them to run my own DACs. You can synch the Delta to an external clock, so that would be sitting on the outboard DAC board as well..

If this is your plan, you might consider shelling out for a Delta 1010. The DB25 connector to the external breakout box carries all the I2S lines from the Envy24 chip. I haven't reverse-engineered the connector, but it 'should be' somewhat straightforward. I still have it as a potential project to try hooking up the I2S output to the 6 channels of a Panny digital receiver - it would make for a very cost-effective active triamp setup.

[capslock]

Well, putting in a line driver chip is no big deal, and I paid like $40 for my second card.

[seattle_ice]

Whatever happened with the waveguide experiments?

The Accutons sure look promising. A TMWW or MTMWW with the C23-6/C90?

[Ludvig]

What happened to the Accuton C90/T6 that got good results in Jon's tests?

Has anyone (Jon?) used it in any speaker yet and can give a hint about how it performed in real life? Did it perform as good as the measurements indicated?

[Hdale85]

Think Jon has been real busy lately and hasn't even really visited the forums. At least I haven't seen him in a couple of months.

[ThomasW]

60+hr work weeks have brought Jon's speaker building to an end. Someday the C90/T6 will be used in his version of the Isiris.

https://www.htguide.com/forum/showthread.php?t=23598&page=1&pp=35&highlight=Isir

[tyler]

60+hr work weeks have brought Jon's speaker building to an end. Someday the C90/T6 will be used in his version of the Isiris.

https://www.htguide.com/forum/showth...highlight=Isir is

Good thing I bought a few of those when I did......:B