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Official Power Sound Audio Thread - Page 225

post #6721 of 9921
Quote:
Originally Posted by raynist View Post

I am pretty sure looking at my calibration file it was calibrated to 5hz

Edit: just looked at my calibration file from cross spectrum labs and it is calibrated to 5 hz

You are correct
post #6722 of 9921
Quote:
Originally Posted by jeffbar View Post

Question on the placement of the XS30.

I am looking to buy either a PSA or Rythmik sub and I only have space for one. Has to look a bit like a coffee table, deploy a 15-inch woofer and be no deeper than about 22 inches.

The XS30 would be ideal for my space if I can position it so the drivers fire out of each side along the front right wall. Be about 12 inches of clearance on each side. The sub is only 18 inches deep from what I can see from the back plate to the plain front, and 23 inches wide.

Like to know how you position your xs30 and what the difference is. Who does it like I am suggesting.
We had our XS30 firing one side into the wall and the other towards the couch and could use it for a coffee table too if needed. This was in a near field placement and it worked great for us. We have since moved...
post #6723 of 9921
Quote:
Originally Posted by basshead81 View Post

I used the source for my information...

http://www.minidsp.com/images/documents/Product%20Brief%20-%20Umik.pdf

Quote:
Originally Posted by Saturn94 View Post

I'll have to take a look at my calibration file.
Well there you go. Straight from the horse's mouth. smile.gif

I noticed in one of the links above it says while the calibration file only goes down to 20hz, you can measure lower than that. Anyone know how far off the UMIK from miniDSP is below 20hz? Is it just a few db that won't matter much to those not concerned with absolute accuracy?

The specs from the pdf show 20hz - 20khz, but if you look at the screenshot of a sample calibration file, it shows calibration down to 10hz. I guess it is possible the calibration below 20hz isn't as accurate so doesn't fall within a +- 1db window. The calibration of my umik-1 from minidsp goes to 10hz.

Here is a comparison of the calibration from minidsp and the calibration from CSS of my umik-1. I don't know about other mics, but for my mic it appears the minidsp calibration is low below 20hz.



And here is a measurement comparison between my CSS calibrated EMM6 mic and the umik-1 using the CSS calibration. First overlayed, than offset. Dark blue is umik-1. The umik-1 measures a couple db lower than the emm6 below 20hz. Who knows which is closer to being accurate.



post #6724 of 9921
Quote:
Originally Posted by sealmaniac View Post

Here is how mine are setup.

http://cdn.avsforum.com/3/33/33b8a2c5_front.jpeg


Everytime I look at the XS30s in photos they look more like squares than the sub's actual rectangular measurements. Odd. But I did a cardboard cutout and I know it's not quite as big as the photos make them out to be. Big, all right, but not too big for my room. Thanks for showing sealmaniac.
post #6725 of 9921
my single xv15 corner loaded w minidsp:

post #6726 of 9921
For a single sub, very nice.
post #6727 of 9921
Quote:
Originally Posted by cr136124 View Post

So, you shouldn't worry much about that as long as you have few inches of space / clearance so the driver can perform at its maximum potential......wink.gif

Did you already purchase your sub? What finish did you order?


I haven't chosen yet, cr. I am deciding between the XV15 and XS30 or a 15-inch sealed Rythmik. Those are the only two brands that can meet my WAF-influenced criteria for size (less than 22 inches deep), looks, price and sound quality/deep-down performance. The Hsu's are too deep and I dislike the SVS grills.

I was leaning strongly toward Rythmik because the piano black would go great with my white lacquer, custom built ET unit. But I hadn't given PSA a close look until just this week. Tom V. sold me an SVS 20-39 cylinder sub years ago and gave me the same great customer service back then. Figured I should find out what he was up to. Emailed back and forth a few times and he recommends the XV15 or XS30 for my 4,000 SF area given my peculiar needs.

The PSAs are more prose than poetry but my wife says they look fine enough for her. The XS30 is what I am zeroing in, as you can tell. I created a cardboard cutout to show the floor space and height that the XS30 would take up, and I put it in the spot I plan to locate my new sub (I am quite restricted in that regard). See the photos.




post #6728 of 9921
Quote:
Originally Posted by jeffbar View Post

I haven't chosen yet, cr. I am deciding between the XV15 and XS30 or a 15-inch sealed Rythmik. Those are the only two brands that can meet my WAF-influenced criteria for size (less than 22 inches deep), looks, price and sound quality/deep-down performance. The Hsu's are too deep and I dislike the SVS grills.

Man at least you are down to only two brands, so you are almost there.........wink.gif Now, we need to have a serious conversation on your dislike towards the SVS grills.............those things are beautiful.

Warning: Spoiler! (Click to show)



And during a zombi attack you can use them as a shield............you never thought about that, right?

tongue.gif
Quote:
Originally Posted by jeffbar View Post

I was leaning strongly toward Rythmik because the piano black would go great with my white lacquer, custom built ET unit. But I hadn't given PSA a close look until just this week. Tom V. sold me an SVS 20-39 cylinder sub years ago and gave me the same great customer service back then. Figured I should find out what he was up to. Emailed back and forth a few times and he recommends the XV15 or XS30 for my 4,000 SF area given my peculiar needs.

Yeah, Tom is a great guy. He is very polite and honest in his responses. He never pushed me on trying to sell me anything, but he was great giving me recommendations, observations on my gear and he is very knowledgeable on how to achieve the best based on my specific requirements. By the way, he seems to work 24/7. He answered emails late at night, over the weekends and during a holiday............eek.gif

Here is a better look of the XS30 that I purchased from him:






Quote:
Originally Posted by jeffbar View Post

The PSAs are more prose than poetry but my wife says they look fine enough for her. The XS30 is what I am zeroing in, as you can tell. I created a cardboard cutout to show the floor space and height that the XS30 would take up, and I put it in the spot I plan to locate my new sub (I am quite restricted in that regard). See the photos.

Warning: Spoiler! (Click to show)



You are golden, if you wife already told you the XS30 looks fine to her, then go ahead and place your order man.......pronto!

That spot looks fine, just make sure the glass on the doors to the left of your room are well secured..................the XS30 will hit them hard............eek.gif

Good luck and keep us posted on your final decision!
post #6729 of 9921
I am not like most AVS'ers - I don't actually like seeing what's underneath a grill! Hence my dislike of the SVS models I considered.

Prefer a clean look that blends in with the surroundings so long as the speakers sound as good or better with the grills. I've got floorstanding Dahlquists in my secondary HT in the basement and Focal/JM Labs in the attic. The grills stay on. Ditto for my two other, er, secondary subs.

BTW, the woofer won't fire into the glass. It will directly hit the drywall, which has foam insulation behind it. (The room is part of a newly built addition). The glass is part of a heavy duty set of French doors and would be about 12-14 inches away from the woofer diagonally. Very sturdy.

My 13-year-old daughter says I have to buy the sub soon because she wants to watch Iron Man for her birthday. So maybe I will. (-:
post #6730 of 9921
Quote:
Originally Posted by jeffbar View Post

I am not like most AVS'ers - I don't actually like seeing what's underneath a grill!

Prefer a clean look that blends in with the surroundings so long as the speakers sound as good or better with the grills. I've got floorstanding Dahlquists in my secondary HT in the basement and Focal/JM Labs in the attic. The grills stay on. Ditto for my two other, er, secondary subs.

BTW, the woofer won't fire into the glass. It will directly hit the drywall, which has foam insulation behind it. (The room is part of a newly built addition). The glass is part of a heavy duty set of French doors and would be about 12-14 inches away from the woofer diagonally. Very sturdy.

My 13-year-old daughter says I have to buy the sub soon because she wants to watch Iron Man for her birthday. So maybe I will. (-:

+1

I also don't like the exposed driver look. The SVS metal grill doesn't do anything for me either. wink.gif
post #6731 of 9921
Same here, that's just another reason why I love my XV15 smile.gif
post #6732 of 9921
Quote:
Originally Posted by Saturn94 View Post

I do use a boom stand to place the mic at my main LP (at ear level). I also point the mic straight ahead (not sure if the matters for measuring bass frequencies).

I do remember my UMIK coming with some kind of clip or adaptor to hook to a boom stand. The stand I bought already had a mic clip attached, so I'm not using the one that came with the mic.

Thanks, I think I have a clip adapter. It's probably in the box and just forgot about it.
post #6733 of 9921
Does anyone else have issues with trying to keep there sub in one spot with out it wanting to walk around the room? And any ideas how I can prevent it without gluing it to the floor? Lol
post #6734 of 9921
Recorded a couple clips from what I was hearing in my previous post to show. Tried different positions and still occurs and starts at -20 MVL. I've reran Aud numerous times nothing has changed. Starting to wonder if something is wrong with the Aud Mic itself now. Did order a UMIK-1 mic to take some measurements.

Pulse server room scene
http://youtu.be/QzrJhqmqXps

OHF kamikaze bomb (after monument falls)
http://youtu.be/NKmatwTlaBY

OHF Monument
http://youtu.be/c69TpLJ6Q-w
post #6735 of 9921
Quote:
Originally Posted by PDDUFRENE View Post

Does anyone else have issues with trying to keep there sub in one spot with out it wanting to walk around the room? And any ideas how I can prevent it without gluing it to the floor? Lol
spiked feet and a piece of granite on the top will stop it from moving
post #6736 of 9921
Quote:
Originally Posted by ellisr63 View Post

spiked feet and a piece of granite on the top will stop it from moving
It's on a ceramic tile floor so I'm not sure the spiked feet will work, and never thought about putting a piece of granite on top. Won't the granite vibrate off?
post #6737 of 9921
You might try a welcome mat or small rug with a grippy back.
I used a piece of solid vinyl or rubber drawer liner to put between 2 subs I had stacked with good results.

Just some food for thought!
post #6738 of 9921
Quote:
Originally Posted by sealmaniac View Post

You might try a welcome mat or small rug with a grippy back.
I used a piece of solid vinyl or rubber drawer liner to put between 2 subs I had stacked with good results.

Just some food for thought!
I actually have it sitting on a rubber mat and it still finds its way off of it. I'm gonna have to try a small rug that might help it. Thanks for the suggestions.
post #6739 of 9921
Quote:
Originally Posted by PDDUFRENE View Post

It's on a ceramic tile floor so I'm not sure the spiked feet will work, and never thought about putting a piece of granite on top. Won't the granite vibrate off?
Not if you go to a place that sells granite countertop slabs. It won't go anywhere.
post #6740 of 9921
Quote:
Originally Posted by PDDUFRENE View Post

I actually have it sitting on a rubber mat and it still finds its way off of it. I'm gonna have to try a small rug that might help it. Thanks for the suggestions.
rug is going to slide I think. You could try some sorbothane rubber pucks if they can withstand the weight.
post #6741 of 9921
post #6742 of 9921
Quote:
Originally Posted by ellisr63 View Post

Not if you go to a place that sells granite countertop slabs. It won't go anywhere.
You make a good point, that stuff is heavy! I'll have to get a price and see how much that'll set me back.
post #6743 of 9921
I think I'm going to order some and give them a shot.
post #6744 of 9921
+1 on despising the svs grill.
post #6745 of 9921
my major issue was the pb12 grill kept rattling off. and at one point almost hit my 17 month old son (and this was at lower volumes). we swapped out 3 subs and they all did it...poor design
post #6746 of 9921
Let me clarify.. I meant don't use it for movies,tv. I only use it for music. I use Dolby Volume for tv..
post #6747 of 9921
Quote:
Originally Posted by pretsam View Post

Recorded a couple clips from what I was hearing in my previous post to show. Tried different positions and still occurs and starts at -20 MVL. I've reran Aud numerous times nothing has changed. Starting to wonder if something is wrong with the Aud Mic itself now. Did order a UMIK-1 mic to take some measurements.

Pulse server room scene
http://youtu.be/QzrJhqmqXps

OHF kamikaze bomb (after monument falls)
http://youtu.be/NKmatwTlaBY

OHF Monument
http://youtu.be/c69TpLJ6Q-w


Hey guys:

Can some of you more knowledgable people listen to his sound clips? Something definately sounds wrong, but not sure what it is.

Pretsam: Did you say you had dual XS30s?
post #6748 of 9921
Quote:
Originally Posted by cr136124 View Post


Here is a better look of the XS30 that I purchased from him:


Hot.
Sex.
So nice smile.gif How would you compare them? Are they running in the same space? Talk dirty to me
post #6749 of 9921
Quote:
Originally Posted by Brian Fineberg View Post

my major issue was the pb12 grill kept rattling off. and at one point almost hit my 17 month old son (and this was at lower volumes). we swapped out 3 subs and they all did it...poor design

That's bizarre. I like the older svs grills. Not a fan of covers that stick out more than they have to on subs that already run deep.
post #6750 of 9921
Quote:
Originally Posted by PDDUFRENE View Post

You make a good point, that stuff is heavy! I'll have to get a price and see how much that'll set me back.
You might even get lucky and find a small piece that is leftover from a job... You might want to check and see where new homes are being built and get the piece that is cutout for a sink. If it is a cutout you can most likely get it for free. Cutting it square should not be expensive. If you want the edges polished that is where it gets expensive. Another option is Overstock.com... Look for a bathroom countyertop for a bowl type sink. It will be a rectangle and shipping is like $1.
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