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Power Sound Audio Discussion Thread! - Page 43

post #1261 of 2990
1/21/13 at 2:47pm
This is the video.

https://www.youtube.com/watch?v=TB-tZQTtEJA&feature=youtube_gdata_player

The XS30 isn't coming close to that. And I have tried moving the cup around everywhere in the room but nothing.
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post #1262 of 2990
1/21/13 at 3:02pm
Quote:
Originally Posted by SmokenAshes View Post

XsOk guys I'm confused. Remember that video I made of my HSU VTF3 MK4 with the Underworld Awakening scene with the super lycan and the cup of water. Well I played the same scene with the XS30 and the water didn't move...at all....like tiny little ripples. I don't understand. I know I have this thing dialed in because I just got done watching Total Recall and my god, at end of it with the fighting scenes in "the fall".....I literally felt like I got off a rollercoaster ride! My HSU never did that, it just felt boomy during that part. So my question is how come the XS30 ain't moving this water, I know for damn sure its more powerful from other scenes I have tried. I also have tried moving the cup of water around. I even placed it ON TOP of the sub and yet nothing!
Quote:
Originally Posted by SmokenAshes View Post

Ok I get that part. Buy I'm most concern is about the table. Because earlier I said the HSU vibrated the table like T-Rex but the XS30 isn't. But I know the XS30 is more powerful, but I don't get why this is happening.

At the risk of sounding condescending, which is definitely not my intention, but why is the water glass that important? If you "know for damn sure its more powerful from other scenes I have tried", and it "literally felt like I got off a rollercoaster ride!" then isn't that all that really matters in the end? If you like what you feel and hear then perhaps the rest really doesn't matter. Just my 02...
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post #1263 of 2990
1/21/13 at 3:06pm
SmokenAshes, how large is your room?
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post #1264 of 2990
1/21/13 at 3:35pm
Quote:
Originally Posted by JimWilson View Post


At the risk of sounding condescending, which is definitely not my intention, but why is the water glass that important?

Having communicated with him over this issue, the answer is; fun and entertainment.
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post #1265 of 2990
1/21/13 at 3:35pm
Hi Jim.
I get what your saying, but what about plain old curiosity. I'm kind of curious myself what about the other sub made the water ripple that the new one does not.
Could it be the sound waves, or could it just be the other sub shook the actual floor more which transfered to the end table??? Is that what Bill was talking about, and it just went over my head???
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post #1266 of 2990
1/21/13 at 3:36pm
Quote:
Originally Posted by RickMa View Post

Bill, What smoken is talking about is a cup of water on a side table approx 15 feet away from the sub. On his older sub he could make the water ripple, but not on the new one.
The table will have a resonant frequency. If that coincides with a room mode that's excited by the sub where the table is located it could vibrate enough to make a water glass dance. A different sub might not excite that room mode; for that matter the same sub might not excite it if you move it a few feet. With measuring gear you could find out exactly what's going on in a flash, but without it you can only guess.
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post #1267 of 2990
1/21/13 at 3:53pm
I have like OCD or something. I'm trying to justify on buying a bigger sub I think. But I just hooked up the old HSU again and I don't know what's going but I really am not seeing a big difference that I should be seeing. Its driving me crazy.

Is it normal where you turn the volume up high you start to lose the SPL of the bass? Like when I turn it up the ULF gets less and less.
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post #1268 of 2990
1/21/13 at 3:53pm
I have like OCD or something. I'm trying to justify on buying a bigger sub I think. But I just hooked up the old HSU again and I don't know what's going but I really am not seeing a big difference that I should be seeing. Its driving me crazy.

Is it normal where you turn the volume up high you start to lose the SPL of the bass? Like when I turn it up the ULF gets less and less.
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post #1269 of 2990
1/21/13 at 3:53pm
Sorry for the double post
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post #1270 of 2990
1/21/13 at 4:05pm
Quote:
Originally Posted by SmokenAshes View Post

I have like OCD or something. I'm trying to justify on buying a bigger sub I think. But I just hooked up the old HSU again and I don't know what's going but I really am not seeing a big difference that I should be seeing. Its driving me crazy.

Is it normal where you turn the volume up high you start to lose the SPL of the bass? Like when I turn it up the ULF gets less and less.

guess you will need add another sub to help out..

can you use 2 different subs in an HT set up?

cheers
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post #1271 of 2990
1/21/13 at 4:08pm
Quote:
Originally Posted by Bill Fitzmaurice View Post

The table will have a resonant frequency. If that coincides with a room mode that's excited by the sub where the table is located it could vibrate enough to make a water glass dance. A different sub might not excite that room mode; for that matter the same sub might not excite it if you move it a few feet. With measuring gear you could find out exactly what's going on in a flash, but without it you can only guess.

That makes perfect sense Bill.
I really want to understand the room measuring side of the hobby but it always seems to fly over my head a tad.
Makes sense that any 1 thing different about the sub or placement could exite the room differently.
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post #1272 of 2990
1/21/13 at 4:13pm
Quote:
Originally Posted by JimWilson View Post


At the risk of sounding condescending, which is definitely not my intention, but why is the water glass that important? If you "know for damn sure its more powerful from other scenes I have tried", and it "literally felt like I got off a rollercoaster ride!" then isn't that all that really matters in the end? If you like what you feel and hear then perhaps the rest really doesn't matter. Just my 02...
+1. Sounds like he set the measuring stick as the glass moving water, says the new sub clearly has more output but didn't get same results with new sub. I guess seeing isn't always believing? wink.gif.
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post #1273 of 2990
1/21/13 at 5:18pm
I think I figured it out. In short I was assuming this thing would be loud in the ultra low bass 20-30hz range. But that's not the case. Its loud in the higher bass.
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post #1274 of 2990
1/21/13 at 5:59pm
Quote:
Originally Posted by SmokenAshes View Post

I think I figured it out. In short I was assuming this thing would be loud in the ultra low bass 20-30hz range. But that's not the case. Its loud in the higher bass.

I have another theory. Perhaps your HSU sub was not inert and as a result may have been vibrating. Now if that HSU sub was directly coupled to the floor (assuming not a concrete floor), could cause the floor to resonate. The table at 15' distance, which is still coupled to the floor could vibrate.
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post #1275 of 2990
1/21/13 at 6:10pm
Quote:
Originally Posted by suresh6877 View Post

I have another theory. Perhaps your HSU sub was not inert and as a result may have been vibrating. Now if that HSU sub was directly coupled to the floor (assuming not a concrete floor), could cause the floor to resonate. The table at 15' distance, which is still coupled to the floor could vibrate.

Probably

I just hooked up the HSU and ran the same scene. Lol now the water didn't ripple like it did in the video. Lol I'm going mental!
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post #1276 of 2990
1/21/13 at 6:19pm
Quote:
Originally Posted by SmokenAshes View Post

Probably

I just hooked up the HSU and ran the same scene. Lol now the water didn't ripple like it did in the video. Lol I'm going mental!

But is it still louder than the PSA in the lower frequencies?
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post #1277 of 2990
1/21/13 at 6:37pm
Quote:
Originally Posted by SmokenAshes View Post

Probably

I just hooked up the HSU and ran the same scene. Lol now the water didn't ripple like it did in the video. Lol I'm going mental!

Smoken...Did you put the HSU in the exact spot it was in the video?
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post #1278 of 2990
1/21/13 at 7:15pm
Did you rerun audyssey after hooking up the Psa? If so maybe it neutered the FR
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post #1279 of 2990
1/21/13 at 7:20pm
Well after reading this thread. I decided to mess around with my positioning of my xv-15 again. It's crazy how big a difference a few inches can make. I think its finally dialed in now. I just watched War of the Worlds again and I was honestly a little skeared biggrin.gif:eek:



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post #1280 of 2990
1/21/13 at 7:42pm
Quote:
Originally Posted by Lebreeze View Post

Well after reading this thread. I decided to mess around with my positioning of my xv-15 again. It's crazy how big a difference a few inches can make. I think its finally dialed in now. I just watched War of the Worlds again and I was honestly a little skeared biggrin.gif:eek:




Now that's a home theater.
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post #1281 of 2990
1/21/13 at 7:56pm
Quote:
I have another theory. Perhaps your HSU sub was not inert and as a result may have been vibrating. Now if that HSU sub was directly coupled to the floor (assuming not a concrete floor), could cause the floor to resonate. The table at 15' distance, which is still coupled to the floor could vibrate.
Yes, the table could vibrate sympathetically with the floor. But floors don't vibrate from coupling, they vibrate in response to the sub's audio output.
Quote:
Is it normal where you turn the volume up high you start to lose the SPL of the bass? Like when I turn it up the ULF gets less and less.
If you're saying what I think you're saying, yes. The driver will run out of excursion at a lower level in the lower end of the passband than in the upper end. That means there comes a point where turning the sub up louder won't get any more volume in the ultra lows, but it will get more volume in the upper end, changing the system response.
Quote:
Well after reading this thread. I decided to mess around with my positioning of my xv-15 again. It's crazy how big a difference a few inches can make.
Subs are like a business: The three most important factors are location, location, location. Where yours is concerned if it's not aimed into the corner (I can't tell from the picture) it would probably work even better if it was.
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post #1282 of 2990
1/21/13 at 8:45pm
Quote:
Originally Posted by Lebreeze View Post

Well after reading this thread. I decided to mess around with my positioning of my xv-15 again. It's crazy how big a difference a few inches can make. I think its finally dialed in now. I just watched War of the Worlds again and I was honestly a little skeared biggrin.gif:eek:




nice ht.. how do you like your studio 100s what kind of power you feeding them?
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post #1283 of 2990
1/21/13 at 9:00pm
Quote:
Originally Posted by Lebreeze View Post

Well after reading this thread. I decided to mess around with my positioning of my xv-15 again. It's crazy how big a difference a few inches can make. I think its finally dialed in now. I just watched War of the Worlds again and I was honestly a little skeared biggrin.gif:eek:




What kind of stand is that for your center?
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post #1284 of 2990
1/21/13 at 9:09pm
Quote:
Originally Posted by Lebreeze View Post


Dang, those are some sweet looking speakers.....they look pretty darn expensive too, but super nice smile.gif
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post #1285 of 2990
1/21/13 at 9:17pm
I love the look of that center channel especially.
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post #1286 of 2990
1/21/13 at 9:32pm
I using a xpa-5 to power all of my speakers. I'm loving the Studio 100's so far. My center is a cc 690 the stand is a paradigm stand j-18c.
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post #1287 of 2990
1/21/13 at 10:00pm
Quote:
Originally Posted by Lebreeze View Post

I using a xpa-5 to power all of my speakers. I'm loving the Studio 100's so far. My center is a cc 690 the stand is a paradigm stand j-18c.

real nice set up .. i was listening to the studio 60 last friday night.. going back wednesday to listen somemore 100's is on the list.. might even ask for a taste of the signatures as well..

200 watts is a good number for the 100s ..

i was listening to the 60's on a athena 170 wpc reciever.. pretty nice sound.. ran out of time tho. and was too busy to really listen.. weekdays are better for that..

that cc 690 is massive..

the paradigm subs are alot more money then psa thats for sure..

your house must be rocking..

cheers
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post #1288 of 2990
1/21/13 at 10:24pm
Guess I should finally change my Sig and post in here. (Ive been trolling PSA far too long!)

Dual XV-15 on the way. 4 more days! Have a feeling this is going to rock a lot harder than my sealed ED Sub!!! biggrin.gif
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post #1289 of 2990
1/21/13 at 11:04pm
Quote:
Originally Posted by CRAZYKAT View Post

Quote:
Originally Posted by " 
Panels absorb and prevent the reflection of sonic energy.

Fling a basketball against a hard surface and then fling a basket ball against a feather pillow in the same location. That sort of thing.

You might find some information here.

Quote:
Originally Posted by cvinfig View Post

Better links to learn about acoustics:
http://www.realtraps.com/
http://gikacoustics.com/articles/


Thanks for the Links, BeeMan458 & cvinfig

heres a good ht 101 set up with absorptive panels on walls and ceiling.. so many mathematical things going on here look carefully if you want great sounding rooms...

ht set up 101 with basic absorptive panels on walls and ceiling

http://www.gearslutz.com/board/studio-building-acoustics/610173-acoustics-treatment-reference-guide-look-here.html

great link for acoustic 101 knowledge tonnage here..

cheers
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post #1290 of 2990
1/21/13 at 11:16pm
Quote:
Originally Posted by Bill Fitzmaurice View Post

Quote:
Originally Posted by RickMa View Post

Bill, What smoken is talking about is a cup of water on a side table approx 15 feet away from the sub. On his older sub he could make the water ripple, but not on the new one.
The table will have a resonant frequency. If that coincides with a room mode that's excited by the sub where the table is located it could vibrate enough to make a water glass dance. A different sub might not excite that room mode; for that matter the same sub might not excite it if you move it a few feet. With measuring gear you could find out exactly what's going on in a flash, but without it you can only guess.

very interesting theory ... do you know how fast sound travels though wood? do you think wood could vibrate at every frequency? versus just one?

its not crystal..

cheers
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