Massive problem with audio interface

So what's the consensus on folks who have HDD or SSD in their Haswell iMacs? Mostly working with interfaces/pro audio applications, or mostly not? Is anyone booting from an external SSD that can comment on performance? Thinking about getting a low-capacity Thunderbolt SSD to get me by right now but I wonder if it's any better than booting from an external 7200 RPM HDD.

I bought a 27" iMac 3.5Ghz i7, 16Gb ram, with the 3Tb Fusion Drive... had the exact same bleeps and f@rts from my USB Audio Interface (Line 6 UX2). Following the partitioning method pioneered by JonnyK, I created a 2nd bootable drive partition and had hours of fun playing completely problem free.

I can deal with the slightly slower boot time on the 2nd partition (35 seconds against the 16 of the main), but I paid for something that I'm now not using effectively. Apple better fix this!

Thanks!! With 10.9.2 the Fusion Drive audio issue is fixed for me!!! Its been a couple months since I've been able to use it so I'm beyond excited! I'm using a 2013 iMac, 3.1GHz i7 with 16 GB of RAM, 1TB Fusion Drive...Apogee Quartet.

With 10.9.2 (just look around, you'll find it) and the Jan. 2014 driver update from Apogees support page...Your Go Flight.....I've been running Logic X, iTunes, Spotify, and Safari (Youtube) with absolutely no problems!🙂

Have the same setup, same audio interface an doesn't work either.

Bought the two just new. And it doesn't work.

They can't leave this like that, professional user are using this?!!!!!!!

Hi Jonny, Thanks for the info. I'm having this problem with my interface (along with many others, obviously), and I want to try out your method. Has it continued to work these last few months? And if you don't mind, could you explain how you moved your install of Mavericks to your partition? I've already created the partition, I'm just trying to figure out how to move Mavericks over. Do I just install a separate copy and then boot to the partition when I start up, or is there a easier "drag-and-drop" sort of method where I can just move everything over? Sorry if these are dumb questions, I'm a Mac noob. Thank you for your help!

Well I can scratch off booting off my cloned drive, it just failed on me! 😮

Oh well, I'll have get a replacement. In the mean time I'm sure I can dust off my old 4-track.

Now where did I put it...?

There is a new build of 10.9.2 available on the Mac Dev site, if someone has access to download could they please test and see if the issues from the 2nd beta have been readdressed. Really want this ******* crackly issue to stop!

No way in **** I'm touching my harddrives to make something work. I bought a product for way too much money.
To than tinker with it, to maybe get a solution.

Apple has just have to speak with the big audio interface company's to find a solution. Simple

And they should pay more attention to these communities, and don't expect the community to get a solution.

I normally just find a work around but not anymore. NOW they are going to get it fixed.

I have a brand new iMac (received it Tuesday), 3.5 i7, 3TB fusion drive, and 16 gig ram. 27inch.

Interface is Focusrite Pro 40. Using Logic X. Firewire 400 -> 800 adaptor -> Thunderbolt adaptor.

Had the problem mainly being discussed here: audio for brief periods, dropped; changing setting, say sample rate, brings back audio for only a few seconds. Audio quality -- when working -- is fine.

The 10.9.2 update (its availabe just search) fixed my problems, although some very small pops now occur, only a few times over a 2 hr period. I hope that problem will go away when beta testing is complete. But work can now be done. Have not testing recording as yet. Will have a session to test it out on Saturday, and if it does not perform as expected, I'll report back.

Good luck everyone!

OK did the usb3 external carbon copy thing and so far my Saffire 24 pro dsp is working well. What ever works till they fix it, and I'm sure they will. I would complain about the expensive computer and it should just work etc., but most of us have been around the block a few times and we know how things go. For my money Applwe still rules. So there.🙂 BTW CC warned against WD HDD, but mine seems to booty just fine.

I also just bought the new iMac - 3.5 i7, 3TB fusion drive, and 16 gig ram. 27inch.

Am using a Quartet interface and am experiencing the same problems as mentioned in these threads. As far as I can see this has been a known issue since autumn 2012. This being the case I am gobsmacked that the trained apple 'music tec guy' in the apple store failed to know about it!

When asked what I intended to use the computer for I replied specifically for music production…

I have been miss sold a product here, not pleased at all.

Has anyone else fixed the problem with the 10.9.2 update? If so where can I find it?

I'm also having issues with this. Got my iMac on tuesday, 3.5 i7, 1tb fusion, 16gigs of ram, 27 inch and so on.

I use a line 6 POD X3 and logic pro x. While recording, after a few seconds, I hear a crackling noise then there is alot of latency. The latency only goes away after resetting sound input or turning on and off the POD itself. But comes straight back after a few seconds, after the same crackling noise. I wonder when the 10.9.2 will be released for public, and if it will help. Pretty much only got a week left to return this machine. I got this machine for recording music, as of now it's worthless for that purpose. Considering returning this and ordering one with an SSD, if it is the fusion drive that is causing these issues. I have a 2009 iMac running logic pro 9, no issues at all.

RETURN THE MACHINE... Apple have no answers. OS 10.9.2 works with some audio interfaces, but it's a game of chance... I spend $2,500, same as you, I suppose... they don't care about anything, they will take his time to fix it, no hurries... Now I understand why some companies who develop music software don't trust and don't even produce aything for them... good luck!

I did find the 10.9.2 beta last night and tried it. It seemed to fix my problem. I played andrecorded for about and hour or 2 without any issues. It seems to have solved my problem. looks like I might be keeping my machine

Is that the newest 3rd beta ? I posted the 1st 2 betas up for everyone within the last week or 2 . Would you mind sharing the link if it's the newest 3rd beta so I don't have to search for this dumb thing ?