If you've already got a Mackie Control Universal and you want more faders, this is the option for you. With the exact same hardware and technology in an expansion unit, this is the most efficient and effective solution to expand your control surface!
Why did I wait?
I had the MCU Pro for 2 years before I decided to add the Extender Pro. I never should have waited. It's great being able to see 16 tracks at once without having to 'layer" up or down. Makes mixing so much faster. As always great service with shipping from Sweetwater.
The only reason I give this 4 1/2 stars is that is does not come with the needed midi cables to hook it up to the MCU. Yes you must order those separately.
Got the Extender Pro so that i could have 16 channels. Worked great from day one. Using with Logic Studio.