Originally Posted by Bob Pariseau
I wouldn't worry too much about the kid noises. ARC is pretty good at rejecting a Measurement sweep if random noises happen during the sweep tones. Kid noises certainly wouldn't explain what you are getting from your surrounds. (Do try to run your next set of ARC Measurements when the room will remain quiet however.)
Your sub says it is spec'ed down to 20Hz, but a 12 inch sub is pretty small for most listening rooms. The fact that the sub gets loud at higher frequencies does not conflict with this. A sub has to huff a lot of air to pressurize the room at 20Hz and a 12 inch sub will be hard pressed to do that.
However I note that the sub offers an optional subsonic cutoff at 35Hz, and since it appears to be function down to 35Hz I'd start by suggesting you double check you didn't accidentally flip that switch from 20Hz to 35Hz.
Odds are you just need a bigger sub for the cubic feet of air space in your room. Velodyne has a simple calculator on their web site that will suggest subs for different room sizes. It tends to be a bit conservative. For example they say I should need a DD-18, but my DD-15 works just peachy.
Again, 35Hz from the sub is not bad, and it is functioning properly now, so I wouldn't rush to fix the sub problem just yet. The surrounds problem is much more important. But if you were thinking about replacing the sub anyway, make sure you get one big enough for your room as well as designed to go deep.
I don't know your surround speakers. I don't know if there are gotchas due to the ceiling mount. However one obvious thing to try is to switch all 4 of them to bipole and measure again.
Some speakers have separate input jacks for high frequency and low frequency -- which are often fed with just one pair of speaker wire and a jumper between the two pairs of jacks.
The marketing materials you posted for them don't go into installation stuff, but the treble response is bad enough from these that it wouldn't surprise me to learn they got installed without the high frequency inputs connected to anything.
ETA: To test this, play some CD music, and select STEREO ALL audio mode on the Anthem. This will cause the surrounds to get sent the same audio that is going to LF/RF. Now get up on a step ladder and put your ear close to each tweeter in each surround and see if it is actually playing anything at all.
I hope you remember me. We were going back and forth right before Christmas on my ARC results. Speaking of Christmas...I hope you had a good one!
Well I finally got some time to tinker with all those settings and suggestions you made. I really can't tell if anything changed.
Here's what I know. I uninstalled and inspected the surround speakers. The connections are solid and I confirmed in ALL Channel music mode that the tweeters are working. So unfortunately that theory is dead.
I then switched the speakers back and forth between dipole and bipole mode (there's a switch on the speaker). Based on the naked ear it did sound like Bipole sounded better. I also discovered that there is a Dipole/Direct speaker setting within the AVM Speaker configuration menu. I did have the setting correctly set to Dipole but I decided to play around and found that when it's set to "Direct", the Dipole speaker mode sounded better than dipole/dipole .
So I spent 3 hours listening to (speaker setting/AVM configuration setting) Dipole/Dipole, Dipole/Direct, Bipole/Dipole and Bipole/Direct. I "think" Bipole/Direct sounded the best. Hell who knows after watching the Dark Knight 10 times in a row listening for the smallest variances. Now I know what it would have been like to be Howard Hughes. I was about to go NUTS.
So after reading the speaker manual 100x and playing with all the settings I decided to run two additional ARC tests in two new configuration modes.
I already had ARC graphs in (Speaker Setting/AVM Speaker Config Setting) in Dipole/Dipole mode. The next two tests were Dipole/Direct and Bipole/Direct. My charts are below. Once again I have NO idea if anything improved. I feel like an idiot. I wish I could tell. Is my tweeter problem still there?
I'd really appreciate your analysis. This surround issue has me all tweaked out. The good news is I did take your advice and I'm ordering a new "deeper" sub. I agree...we can do better. Now I need to resolve the surround problem.
Lastly if you could educate me on a few new questions, I'd REALLY appreciate it. You've been SOOOO helpful!
Do the Direct versus Dipole configuration settings in the AVM make a big difference. I assume I'm supposed to match my speaker to the speaker configuration setting; i.e. dipole speakers get matched to the dipole setting.
Does the Bass and Treble setting make any difference here? Do those settings effect ARC or are they turned off? If on, what do you keep your treble and bass set to?
What's your favorite Anthem movie mode? Anthem Movie or Dolby P2x?
Thanks for ALL the help!!!!!!!!!!!!!!!!!!!!!!!!!!