Anyone with an Apogee Duet 2 have a problem since El Capitan update?? My card just randomly goes kapoot. Disconnects, makes a loud pop then resets....have tried on all MBP port and it is not on a hub. Have reset the PRAM....still does it. Have contacted Apogee but of course no reply yet.......its driving me nuts.

Sorry, no issues here. Works fine. Although it doesnt sound right... Randomly goes kapoot after how long, as i have kept it it on for long after migrating? I will leave it on for longer....... Do you have the most receny firmware?

Its always on. Ya I have the most recent everything... =/

I have the same problem. Mostly in Safari and Final Cut X.
Duet 2 (latest driver/firmware), iMac 2013 and OS X 10.11.1.
But only since 10.11. On Yosemite it worked fine.

I have the feeling that the duet switches the sample rate back and forth..

Very annoying!

Some problem here. new iMac 27" Retina 5K one week old.

Apogee didn't reply.

Sometimes Maestro shows up with the message "No apogee hardware found" and, after a second, it re-detect the card (producing that annoying pop).
Really unreliable. With my old mac (USB 2.0) with Yosemite it worked fine and with El capitan too.
It seems the problem is with USB3 + El Capitan?

Have you got USB 2 or USB 3 mac?

USB2 macbook pro. Its a couple of years old now.

Spoke with apogee. They suppose cause is power saving features of the new Mac hardware and El Capitan OS that turns off power to USB ports.
This would power off the Duet and cause the "pop" sound through speakers/headphones.
They suggest to contact Apple support.

No problems here with Apogee Duet for iPad. Something to keep in mind that Apple is still working with USB drivers(10.11.2)

Fine! Where did you read it?

Apple Seeds First OS X 10.11.2 El Capitan Beta to Developers - Mac Rumors

I had the same problem with other USB interfaces on Windows seven until I learned how to disable USB power saving modes. Hopefully there's a way to do this in El Captain.

Anyone tried the new beta? Problem solved?
No further care from Apogee?

Anyone else having that issue?

....impatience....

still not solved.

10.11.2 hasn't been released yet.

Are you trying the beta?

I found that on El Capitan specifications:

USB Power Management
Traditionally, USB device power management is done manually, with a function driver
making explicit suspend or resume calls on a USB device service. This is error-prone
and results in overly complex driver code to manage power state.
USB in OS X El Capitan has been completely implemented to benefit from the same USB
architecture and aggressive power management policy adopted by iOS. Each endpoint
in a device can be given an idle timeout in milliseconds, and an endpoint is considered
idle if an active transfer hasn’t completed within that timeout. The device has an idle
state as well, which is a logical AND of the idle state for the endpoints associated with
the device. Only when the device idle timeout expires does the OS pause I/O on the bus
and electrically suspend the device at the port.
The idling system is an important advance because drivers don’t need to actively
participate in power state transitions

I am using 10.11.2 beta. Still is messed up.

did you report it to apple?

Nope dont know how.

Apple - Mac OS X - Feedback

Ive spoken to Apogee and I guess alot of cards are screwing up. They are in talks with Apple trying to solve it...

Great! We just have to be patient...

Great thank you!
High hopes..

I think it would be helpful if each of us send a feedback to apple explaining the problem via this url: Apple - Mac OS X - Feedback
I did it.

Is it same if you use the powercable for the duet? I never experienced this problem, but i never use the usb power for it

Yes, it is the same.

yep did that.

weird that not many seem to have the same problem.. I'm sure there are a few more people in this forum with Duet 2 on El Capitan.

So it must be the computer.
What configuration do you guys have?
Mine is a i7, SSD only and USB 3 iMac.

I did a clean install of El Capitan, installed the latest apogee driver + firmware is up to date. So that surely isn't the problem.

Surely that is Apogee's job.

Been having this problem for over 2 months, Brand new 27in 5k iMac running 10.10.5 Yosemite and all the latest drivers for Apogee. Mine goes into some type of standby mode, it wont allow me to play video or sounds, unless i unplug is completely or let it cycle and plug it back in, it will work fine for a few minutes then shut right back off.