Originally Posted by thestewman
Originally Posted by paradigm25
Can this be done to phase balance the sub with FL and FR speakers even if you have one sub. I am having difficulty phase balancing one sub by listening for highest bass from FM pink noise.
Suggest you follow dumsoke's instructions. He has it posted at the bottom of every page it posts.
He has carefully spelled out the easiest and a perfect way to set phasing
How to phase match subwoofers to the mains speakers: http://www.avsforum.com/avs-vb/showthread.php?p=19542630#post19542630
Thanks Stew ...
Actually for Paradigm, since you only has one sub, my technique will work great but i don't think you've utilized the pink noise technique correctly. Instead of listening to the maximum bass, i would listen for the minimum bass instead. I would do the following:
1. Reverse the polarity of the left speaker by swapping its leads.
2. Start playing your pink noise source into the left speaker and sub. You will want to disconnect all other speakers temporarily for this test.
3. Go into Speaker Config ->Bass Management-Movie (or Music) -> Sub Phase.
4. With the RS SPL meter fixed at your listening position(and having set it to SLOW speed and C-weighting), note the SPL reading when the phase is 0.
5. Then start changing the phase in 5 degree and not the SPL reading. Continue on till you reach 180 degrees and look for the phase degree number that gives you the absolute minimum SPL reading. Basically, you'll have 36 phase angles to cycle through with their respective SPL readings.
6. Pick the phase angle that gave the minimum SPL reading and set that as the angle for the Anthem unit. Don't be suprised if you get a range of phase angles that give equivalent minimum SPL numbers. This is common but record them anyways.
7. Its instructive set the Sub Polarity to 180 degrees and repeat steps 3 thru 6 again to find out what the optimum phase angle would be. Again, don't be suprised to have a range of phase angles that give minimum SPL readings.
Hopefully, the angles an steps 6 and 7 would overlap somewhat (which would be ideal). Then pick the phase number in the middle of the overlap and set the Sub Polarity back to Normal.
If there's no overlap whatsoever, oh well, just set the Sub Polarity to Normal and use the phase number you got in step 6.
8. Reverse the speaker leads to their normal positions(Black Wire on Black Terminal, Red Wire on Red Terminal). Also remember to re-connect the rest of your speaker system!
Don't forget this simple step as i forgot once to reverse the connections back to normal and couldn't understand why i was getting this 'phasey' sound from my system. It gave me headaches for a couple of hours as i thought i had done something wrong in my setup. So i went to check the integrity of the connections in my entire HT system ...only to find after a while that my speaker wires were reversed as indicated in step #1!
Best of luck,
Sorry for being so wordy, but since english ain't my first language, i often find myself maybe over-describing somethings. Bob Pariseau would simply state all the above in just 2 or 3 sentences tops! And this would include his deep tutorials about all thing audio!