MiniDSP

[Rachael]

Hi Mentors here, may I ask your advices what does this device do, & why do I use it

 

Thanks for your advices

 

https://www.minidsp.com/products/minidsp-in-a-box/minidsp-2x4-hd?fbclid=IwAR3mDT0Wc81y26JX79T560ZnW09Ys8KCHWnK4NiwFd_0N_3QvvK1XCtjai8

[Zhang Tianli]

I used to have one and used it as active crossover. 

You can use it as room correction EQ also.