[bob1029]

I used to run an outboard FIR filter for my subwoofer with weights calculated (in part) using REW. I can't recall the actual DSP hardware model, but it was a pretty amazing effect when you toggled it on/off.

Today, I just have a miniDSP that does basic crossover duty. I haven't bothered to do any parametric EQ or more advanced filtering in my new office yet. The passive acoustic treatments have done such wonders that I probably can't be now.

I don't really like running anything above 80Hz through digital filters that I have constructed myself. I've had some success in a few areas, but you can instantly tell something isn't quite right with certain content.

[MartijnBraam]

I too did this exact thing with hardware instead of doing it in Linux. I used an t.racks DSP 4x4 Mini to apply my REW-measured room correction between my sound card and amp, also use it to generate the split for my subwoofer.

[montag]

How do you like the miniDSP? Thinking about getting one - room correction definitely seems like a job for hardware; i.e. easy enough for a DSP, more portable and hassle-free than setting up software on one computer.

[bob1029]

It's pretty good. I have the 2x4HD and no complaints. The software is adobe air crap but it works well enough.

I am using it as a USB DAC driving a pair of stereo monitors and 2x subwoofers at the moment.