REW and MiniDSP Method

[powermang]

Good Morning,

Over the weekend i had a little time to fine tune my four subwoofers. I'm unsure if my procedure is standard or if i've gone off the rails slightly.

1- Using REW i measured each subs frequency response and made an EQ file for each sub.
2- i applied the the filters in the minidsp and then measure the combined response of all four. Result - A better flatter response.
3 - I then generated a filter for this combined response and applied it in the "parametric EQ" section of the mi-inidsp.
4 - Measured the combined response with parametric EQ setting - Result - a very flat response.

My question is, my first to steps seem to be very standard practice. Steps 3 & 4, maybe not? Did i create a house curve? Is this a recommended technique?

Ryan

 

[Pogre]

Are you using an AVR with room correction? I was playing last weekend too and got some pretty good results.

I ran Audyssey first and let it do its thing. After that I did a few sweeps and went into the output section and tweaked manually. I've also generated filters from REW after running Audyssey and uploaded them to the input section. That also worked well for me. If I understand you correctly you generated and uploaded filters to both input and output sections? I haven't tried that.

One thing that can help you is to change the scale to 5 dB increments and remove all smoothing. It's doesn't look as purty but you can really see what's going on with more resolution. What do your before sweeps look like?

 

[powermang]

You are correct, i applied an individual EQ to each sub in the output section of miniDSP and then a global EQ afterwards to the input section. This flattened the response a fair amount. See attached. pre global EQ.

Interesting, i was under the impression that you should run Audyssey after you have implemented individual EQ's in the MiniDSP. Is that what you do or the other way around?

Thanks for the scale and smoothing tip, i'll try and figure that out.