Originally Posted by prsman
Hi Ray. A couple of questions:
1) What do you listen for when adjusting the phase knob on the back of the 2nd SW? The meter doesnt do phase. that parts confusing for me.
2) Are there downloadable test files to sweep the subwoofer output and set it at specified frequency?
For question 1), I do not listen to any thing
I just look at my results from the first sub. From a test CD, been many years since I did-it this way (three AVP ago, over 10 years).
And just look at the numbers of the results, for every frequencies. Than when doing the second sub, try to match those number closely (some will have higher [dip] and lower ones [null], just need to find a nice average).
And hope your calibration from your AVR, will take care of smoothing everything out.
If doing by hear, I still suggest to use a Sound Pressure Measuring tool for the volume.
Than have some play with the phase control, (using a song or movie with lots of bass, just not very accurate) to find out where your level is the highest and go back down. And fine tune from there.
For question 2), I use to have a real CD, but unfortunately cannot find a link for you.
But did find this on line version from a You Tube video;
All my previous instructions are not the easy to do, without some understanding of bass and equalisation knowledge.
And therefore just gave some basics step. That said, my suggestion to you would be buying an AVR with two subs output. Before buying a second sub
This will remedy lots of problems for you, just do-it one step at the time. Enjoy your first sub for now.