Why are my brand new KRK monitors crackling?

I just got a pair of KRK RokIt5's. I only used them once.. to test out my tracks, adjusting the mix, and playing with the volume knobs. I barely went full volume, but now they're cracking. It's faint, but there. I tested four diff. cables - that wasn't the problem. I'm running them into a AUDIOBOX USB Interface into my MacBook Pro (2011). Any ideas??

Hi @mpstone1,
Welcome to the HP Support Forums! I see you are not happy with the scan quality on your new HP Officejet 5740, when you scan something you are getting alot of white specs.
I would like you to first perform a Hard Reset on the OJ 5740:
1. Unplug all cables and memory cards from the printer. Unplug the power cord, directly from the back of the printer while the printer is still turned on.
2. Unplug the other end of the cord from the power source.
3. If there is a power module on the power cord, disconnect one end and reconnect it.
4. After 60 seconds, plug the cord directly into a wall outlet (not a surge protector or battery backup as they can cause the printer to lose basic functionality over time).
5. Plug the power cord into the back of the printer.
6. The printer should automatically power back up. If it doesn't, turn it on with the power button.
7. Try making a photocopy (if your printer is an all-in-on printer) before connecting any other cables to the printer.
8. Connect any other needed cables to the printer.
Please continue here: Vertical Bands, Lines, or Streaks in Copies, Faxes, or Scans, complete the steps listed, make sure the scanner lid is fully down when powering on, do not lift the lid until the printer is fully initialzied.
If after the troubleshooting has been done the copy quality has not improved, contact our technical support at 800-474-6836 as it may be the hardware and you would still be in warranty. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
HevnLgh
I work on behalf of HP
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to the left of the reply button to say “Thanks” for helping!

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Welcome to the HP Support Forums! I see you are not happy with the scan quality on your new HP Officejet 5740, when you scan something you are getting alot of white specs.
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I hope this helps!
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I work on behalf of HP
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to the left of the reply button to say “Thanks” for helping!

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Every re-iteration of OS X uses more and more CPU, GPU, RAM and HD resources.
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Ditch it and purchase either the old RF style Mac compatible wireless laser mice or purchase a wired mouse.
These mice are more accurate pointing and tracking devices.
Look at Mac compatible mice models from Microsoft, Logitech, Kensington or Apple
The battery life of the magic mouse is just poor, also. Its tracking is poor for fine mouse movements, too!
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Why are my brand new KRK monitors crackling?

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