Theatre finally built, now acoustic treatment time.

[carlos]

Thanks,
Yes, I do find creating things with my own hands very satisfying. DIY is not necessarily cheaper as it is more of a personal goal, experience, and hobby. I still have the Clouds to build, and the back wall to address.

 

[ddude003]

Hi @carlos, It is probably not a good idea to use a 25 ft USB extension for your test microphone... May I suggest you create test tones with the Generator function, with a timing ref, saved to a file... Transfer the test tone to your music player app... Then you can play the sweep tone through your entire signal chain player and move the laptop closer to the microphone without that 25 ft USB extension... Now you are using the laptop, running REW, only to take the measurements...

 

[carlos]

Hi ddude003,
Thanks for the suggestion. I will try this and post the results.

 

[ddude003]

Hi again @carlos... I was just rereading this thread and realized you were asking about an iMM-6 microphone... I just sas the MM-6 and thought of the EMM-6 mic... Could you please clarify what microphone you are using and is it USB connected to a laptop? Thanks...

I am looking forward to seeing some new sweeps from 20Hz to 22kHzish... Still wondering what that 7kHz to 10kHz rolloff is all about... And I still need to take a look at your speaker specs... BTY kudos for your DIY style...

 

[carlos]

Thanks, my mic is not a USB. It is the TRRS type little mic, IMM-6. I am leaning towards purchasing a UMM-6 USB mic.

 

[ddude003]

After a few moments looking at your speakers build, specs and some of your charts... I might think that the tweeter cab may not be functioning as expected... This could mean a few things to double check... Have you done any measurements of each of the three drivers at one meter? Are you bi-amping the tweeter cab and the mid-bass cab? As it seems that the mid-bass rolls off at around that ~7kHz down to 10kHz... So if the tweeter cab is not at the same level for some reason, that may be an issue... Just a guess at this point...

A miniDSP Umik-1 or a Dayton EMM-6 should be fine... And a mic stand would help...