I recently purchased a Line6 X3Live and attempted to record my band with it using their USB ASIO drivers. Unforunately I’ve had very little success. In 24 bit mode my VU meters look ok and after I record the tracks they look fine in the timeline. However when I got to play them back they are clipping terribly. If I open one of those tracks with my editor Cool Edit Pro, they are obviously extremely clipped. Oddly enough, 16 bit works fine and I do not experience this. I do however have horrible flakiness in which the driver will sometimes work and sometimes not and will even reboot my PC with EZ Drummer trying to run through the Line6 drivers occasionally.
I’ve worked with Line6 a little on this already without much luck. I tried a firmware update, and even went and exchanged my unit for a new one at Guitar Center. Unfortunately it still occurs. The problem isn’t solely Line6 though, I downloaded Reaper to try it with that and it recorded with 24 bit without any problems at all.
I have a hunch that n-Track is using the wrong 24-bit format, but I can’t change it to anything else so I can’t verify that hunch. I contacted Flavio already but haven’t gotten a response other than the automatic one so far.
here’s a link to my forum topic at Line6 where you can find more details and some screenshots.
http://www.line6.com/support/thread.jspa?threadID=15999&tstart=60
Same problem here guitars69 with E-mu 0404 pci card. Wave looks fine until playback, mega distorted. Tried asio4all, it worked for 1 day, then same thing. Went back to wdm drivers and sound was ok. 3 days later no record at all. No fix here either.
Just wondering if this has anything to do with the combination of the 16 bt program and 24 bt program?
I have the exact same problem with 24 bit recordings using my EMU 1820, but only if I try recording in mono. Are you recording mono or stereo, guitars69?
I have tried recording 24 bit - mono and stereo - in Reaper, Samplitude 8 SE, Cubase LE, Cool Edit 2000, Wavelab and n-Track, but only n-Track makes the weird, noisy, distorted recordings we both experience. My conclusion is:
This is NOT a driver issue!!!
I am jumping up and down with impatience for Flavio to fix this - I reported the error around may or june '07, I think, and still no fix… 
I am still looking forward to Samplitude 9 SE (due with the next issue of Computer Music) and Cubase Studio 4 (ordered in july(!)). Luckily there’s a lot of music to be written while waiting for the GAS letout…
regards, Nils
No it’s not a driver issue. All other apps work here in asio, Reaper, Sonor, Cubase. Just n won’t record in asio. Very frustrating!
I was recording separate mono tracks. My echo layla 24/96 has never had this issue… 
I’ll try the stereo tonight and see if that does anything. That’d be annoying though since I want mono files and will have to modify them after the fact.
[Nils K] ...I am still looking forward to Samplitude 9 SE (due with the next issue of Computer Music) and Cubase Studio 4...
My Cubase Studio 4 package arrived yesterday...
First tests are very positive. mono, stereo, VSTi's - all recorded beautifully and without a single glitch. I might just migrate all my production efforts to Cubase Studio 4, but I do consider keeping n-Track 5 on my hard drive for nostalgic reasons...
I have been very satisfied with n-Track over the years, but maybe time has come to move on now... With Cubase Studio 4 sporting a price tag five times that of n-Track 5 (after the registration deduction from Cubase LE, that is), it has a lot to live up to. So far, I haven't been disappointed with it.
I'm off to make some music.
regards, Nils