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Re: HSU VTF-15H In room measurements - All 15 configurations I would have like to take maybe 3-4 measurements maybe 4-6 inches apart around the listening location and average them. However doing that for each of the combination's would have resulted in 45-60 measurements. That would have taken...

Re: HSU VTF-15H In room measurements - All 15 configurations I measured 5 locations, all pretty much the same distance from the front wall though. These are chair left of couch, left couch, center couch (original measurement), right couch, chair right of couch. I would presume that the problem...

Re: HSU VTF-15H In room measurements - All 15 configurations I'm guessing a pretty bad null. It might be a very small one right at the mic position. I'll try taking 3 measurements on my couch in each of the three seats and then also average them to see if it goes a way.

Thanks soundhound! That is very informative.

Yes, I understand that. I do use a calibration file to help offset it's inaccuracies that someone put together over at home theater shack averaged from several meters. In my post about the 15 configurations for the HSU sub, it should at least be able to show the relative differences between the...

Re: HSU VTF-15H In room measurements - All 15 configurations Also in case you are wondering what the effect of the EQ, Q, and port settings are, I averaged each of the individual settings from the 15 configurations. Here are the overall effects:

Re: HSU VTF-15H In room measurements - All 15 configurations And here is the group delay. Which is similar above 30hz, slightly different below (ignore the timings in the legend as they are for specific frequencies, the latter I believe is for 15.75hz):

Re: HSU VTF-15H In room measurements - All 15 configurations As an attempt to make it easier to read, here is the FR response with each measurement separated:

Okay guys, I went ahead and tried all Q settings, all port configurations, and all valid EQ settings. This comes to a total of 15 different options. Note EQ1 is not to be used with both ports open, otherwise it would have been 18 configurations (3*3*2). I'm using the RS Meter w/ calibration file...

Soundhound, I realize the values are not really precise. But doesn't it give a better approximation than just using the RS meter by itself? For example, the RS meter would show my hand clap at best would be around 85dB or less. 100+ sounds closer to reality for transients.

A couple years ago on the S&V forums, I remember saying that the 1812 overture was only peaking at this and that amount on my RS meter. Flint, mentioned that it really isn't capable of showing the transient output as even the fast setting is more of an average, just faster than slow. Looks like...

I found the MP3 sample of that album here. Thanks for the suggestion.

Re: Verdi Requiem Dies irae Well, I didn't think about that. You may be right. But I did find this type of stuff a bit distracting. However, I am willing to be forgiving of stuff like this is the performance and dynamics are good. I just haven't been able to directly compare yet. By the way...

Wow! I never heard this piece before. The HSU sub had a demo cd and part of this was on track 5. The dynamics of this recording are quite something. The so called "natural" level of this track is to play back 4:58 on the demo cd at 76dB. I only went up to 70dB. I assume the beginning of the...

Well, the SVS still is a nice sub, don't forget, though it's the old iSD driver version. SVS claims that the NSD driver (if I upgraded it) has better SQ. I'm guessing that means a more balanced response among other things? I think it's odd that two subs next to each other have such a different...

Hey guys, I just wanted to let everyone know that the 708 appears to have a great noise floor. I was using my Sony Walkman MP3 player hooked up the front inputs via the headphone out and cranked the receiver all the way up (+18 on the relative scale). I had to do this because I forgot I had the...

It's the free Room EQ Wizard available here: http://www.hometheatershack.com/roomeq/

Here is a 20hz sine wave with the SVS at -4dB compared to the HSU overall (but remember they have similar level at 20hz). Flint, I know that RS meter isn't accurate for bass and THD, but it is interesting nonetheless.

Measurements. Okay first. I've had some phase issues between the two subs. I have the hsu in the right front corner with facing into the room. The SVS is directly left of the HSU. Ofcourse the port is about 3 feet higher than the Hsu ports and 1 foot left of the left most hsu port. The SVS is...

Q setting differences Okay guys, I have ran full bandwidth pink noise into the front right speaker and the sub. Here is the bass crossed over at 60hz with the various Q settings. Both ports are open on the sub. EQ2. I'm using the radioshack meter with the correct calibration file. I used the...