Apple's Core Audio drivers have been corrupted?

Since upgrading to Leopard, my Alesis USB Multimix8 mixer has been increasingly getting more and more static output and has become about useless. After trying everything I could think of, I wrote to Alesis and this is what their support said...
"With Apple’s latest updated OS Leopard, it seems Apple’s Core Audio drivers have been corrupted and affects many class compliant devices such as the Multimix 8 USB which relies on these drivers. Until Apple addresses this with a fix, the best workaround is to back-down to 10.4.10, especially if this will be used in a professional studio."
Does this sound correct to anyone? Is theAudio Core drivers that bad on Leopard and is this something that Apple even plans to address?
Thanks!

Hi, everyone.
Alesis is VERY quick to point the finger at Apple for all their woes, but after my last experience, I'm thinking this is Alesis' problem.
At one time I was running my Alesis MultiMix8 FireWire and getting constant kernel panics while working on audio and video deadlines. As this was the famed 8-core (rolling off the assembly lines in May and all that) I was banging my head against the wall. It finally came down to me bringing in all of my office into Apple's Genius Bar at Tysons Corner, VA and trying to duplicate the occurrence.
The culprit was the Alesis driver.
When I upgraded to Leopard and the new Alesis FireWire driver, I have encountered no KPs or odd audio issues. Confident, I decided to try out the Alesis iMultiMix8 USB for the Second Edition of Podcasting for Dummies. I got a high-pitched whine/static when I tried working with the audio mixing between iPod and mixer. I returned the mixer and exchanged it for another one. Same problem. I then went and tested the iMultiMix on my PowerBook G4 running 10.4.11. Problem still existed. I wrote to Alesis and told them about the iMultiMix, asking them if this was a common issue.
No response.
While Leopard has solved the issues of the KP and continues to perform like a champ, I have been talking to other friends working on both 10.5 and 10.4 having issues with Alesis mixers and USB-powered pre-amps. It sounds less of an Apple issue and more of an Alesis issue.
I think all we can do is wait for Alesis to resolve the problem they are failing to acknowledge is theirs. Not much of an answer, but apparently this the way things appear to be.

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Message was edited by: J A Bohrer

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Message was edited by: J A Bohrer
Message was edited by: J A Bohrer

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