or Connect
AVS › AVS Forum › Audio › DIY Speakers and Subs › 16 x 18's in a 1500ft^3 Space - Popalock's Sub Build
New Posts  All Forums:Forum Nav:

16 x 18's in a 1500ft^3 Space - Popalock's Sub Build - Page 3

post #61 of 943
Haha, I don't think an EP4k will power them enough, perhaps IB, but still not anywhere near enough power for them...I would just about try that if I had enough amperage on backup...
post #62 of 943
Wait.... ep4k's for your XXX's?

Umm... sure. Why not? One ep4k per driver would be fine maybe not 'optimal' but would work fine sans 2-3dB of total peak output. Woopee.
post #63 of 943
haha, no, one for BOTH. or the crown xls1500 on one, and the ep4k on the other. They are "kinda" close but I just don't like that idea one bit...
post #64 of 943
Your neighbors will HATE you! biggrin.gif
post #65 of 943
Thread Starter 
Quote:
Originally Posted by MKtheater View Post

THat was a long time ago.

How long ago? Still with your eD subs and your Clone, right? Or was that with an entirely different setup?
post #66 of 943
Thread Starter 
Quote:
Originally Posted by beastaudio View Post

Haha, I don't think an EP4k will power them enough, perhaps IB, but still not anywhere near enough power for them...I would just about try that if I had enough amperage on backup...

You are satisfied with your 8 SI's though, right? Or are you seriously thinking about needing more?
post #67 of 943
Quote:
Originally Posted by popalock View Post

How long ago? Still with your eD subs and your Clone, right? Or was that with an entirely different setup?

That was with eD 190v2's, 8x18's in a DIY sealed sonosubs and each had a EP-2500 in 2 ohms(850 watts). Now I am running the 13av2's and clone(well, I just bought another). Winisd says that they were identical from 20hz and under but in my room I can play the 12 little guys louder and lower THD at 10hz. They have less rolloff under 20hz.
post #68 of 943
Quote:
Originally Posted by popalock View Post


You are satisfied with your 8 SI's though, right? Or are you seriously thinking about needing more?

Too much is never enough.
post #69 of 943
Quote:
Originally Posted by popalock View Post

Quote:
Originally Posted by beastaudio View Post

Haha, I don't think an EP4k will power them enough, perhaps IB, but still not anywhere near enough power for them...I would just about try that if I had enough amperage on backup...

You are satisfied with your 8 SI's though, right? Or are you seriously thinking about needing more?

Love em, I would, since I have extra amperage and two gigantor 18's that are IB friendly at least give it a shot however...maybe. I would purely do this to see if it helps that 10hz problem I still seem to have, but I am still not positive I even have it
post #70 of 943
Thread Starter 
Quote:
Originally Posted by MKtheater View Post

That was with eD 190v2's, 8x18's in a DIY sealed sonosubs and each had a EP-2500 in 2 ohms(850 watts). Now I am running the 13av2's and clone(well, I just bought another). Winisd says that they were identical from 20hz and under but in my room I can play the 12 little guys louder and lower THD at 10hz. They have less rolloff under 20hz.

Congrats on your purchase. I'm right behind you.

Did you go through Paypal this tine? I gotta dig up that address again.
Edited by popalock - 3/14/13 at 10:41pm
post #71 of 943
Quote:
Originally Posted by popalock View Post

Half the drivers and you still have more vd than me!

You have a curve for all to Envy Dave. Is this your response with or without the correction file? I don't see that being possible in my space, but time will tell... Not getting my hopes up, that's for sure.

How big is your space again man???

How do you work out the vd? Sorry, I am still a noob.



I just saw the 16 x 18" drivers title and though OMG! Still, going to put out some nice bass!
post #72 of 943
Hey Noob, (Noob with over 100 liters of Vd in his bunker)

Vd = total Xmax x Sd
post #73 of 943
LOL, thanks. But, I really do stick knives in wall sockets... biggrin.gif
post #74 of 943
Well, if that's the case, keep it up because it's obviously working out OK for you. smile.gif
post #75 of 943
Thread Starter 
Quote:
Originally Posted by Scott Simonian View Post

Too much is never enough.

+1

Typical Scott...lol

I find myself consistently agreeing with your "no such thing as too much" sub stance...

Quote:
Originally Posted by beastaudio View Post

Love em, I would, since I have extra amperage and two gigantor 18's that are IB friendly at least give it a shot however...maybe. I would purely do this to see if it helps that 10hz problem I still seem to have, but I am still not positive I even have it

Remind me beast, is the problem just at your main LP? Is there any other spot in your room that has yeilded a good measurement at/below 10Hz?
post #76 of 943
It's everywhere..and nowhere. I'm just going to drop it, and say it is the soundcard on my laptop. Doesn't REW work on macs now? Maybe I will try that out some...
post #77 of 943
I would also say some type of measuring error because sealed subs just don't drop off like that unless the signal chain is bad.
post #78 of 943
Yep, or bad speaker wire. Haha. j/k. Signal chain is golden, it aint that for sure.
post #79 of 943
Thread Starter 
Here are some inital measurements:

Straight from AVR to Amp, no LCR:


Straight from AVR to Amp, with LCR:


Combined:


Then I threw my SMS-1 into the chain. All measurements taken with the mains engaged.

AVR to SMS-1 Baseline:


AVR to SMS-1, current measurement after a few rounds of EQ:


Combined:
post #80 of 943
Thread Starter 
Seems the SMS-1 addresses a few issues, but I'm still anticipating the miniDSP is going to serve me better. Carp, which one did you end up picking up? I keep telling people that I have mine on order but as soon as I convince myself which one I really want, I'll end up finding some other information that makes me scratch my chin for a second. I talked to Gorilla about it and at first I was going to go for the balanced 2x4, then I dug a little deeper and found the HD versions have remote capability and can accommodate balanced inputs. Then I noticed that the sampling rate for the 4x10HD was higher then the 10x10HD. Listened to some technical jargon from some people smarter than me and decided that the sampling rate did not have much relevance to my intended application...Ugh! I'm great at making things harder than they need to be.

Anyway, I'm going to get the 10x10HD with the 4X10 plug-in. This will leave the door open for future expansion and the remote (IR) capability will allow me to move on from my SMS-1 completely. Any objections?

Can someone post a link to the to the specific xlr/phoenix connectors to use?
post #81 of 943
Starting off pretty strong. Really that 45hz notch is the biggie annoyance. Gotta work on that. Is this just the front set of subs running?
post #82 of 943
post #83 of 943
Where are you crossing to your mains?
post #84 of 943
Thread Starter 
Quote:
Originally Posted by Scott Simonian View Post

Starting off pretty strong. Really that 45hz notch is the biggie annoyance. Gotta work on that. Is this just the front set of subs running?

Yeah, just the front 8. Still building the boxes for the rear subs

Perfect. Thanks man!
post #85 of 943
Thread Starter 
Quote:
Originally Posted by beastaudio View Post

Where are you crossing to your mains?

For those measurements, I had the mains set to large and I set the LPF @ 100 for the subs... Just to get some preliminary measurements up. Definitely planning on crossing them lower and setting the mains to small in the long run.
post #86 of 943
16 18's? tapout-mode? The first one to completely encapsulate their 6 structural surfaces entirely with subs, WINS! (Note: suspendend mesh floor required.) tongue.gif
post #87 of 943
I'm not sure which one, I can't remember but it's the same on Kevin (mrsmithers) has. It didn't have a box, he made one for it.
post #88 of 943
Quote:
Originally Posted by popalock View Post

Quote:
Originally Posted by beastaudio View Post

Where are you crossing to your mains?

For those measurements, I had the mains set to large and I set the LPF @ 100 for the subs... Just to get some preliminary measurements up. Definitely planning on crossing them lower and setting the mains to small in the long run.

If that's how you're doing it, then we need to talk...I left you a message anyways rolleyes.giftongue.gif I'll be home in about 30
post #89 of 943
Curious bro, how does the SMS-1 graph compare to the OM graph? They look pretty similar?
post #90 of 943
Quote:
Originally Posted by popalock View Post

Seems the SMS-1 addresses a few issues, but I'm still anticipating the miniDSP is going to serve me better. Carp, which one did you end up picking up? I keep telling people that I have mine on order but as soon as I convince myself which one I really want, I'll end up finding some other information that makes me scratch my chin for a second. I talked to Gorilla about it and at first I was going to go for the balanced 2x4, then I dug a little deeper and found the HD versions have remote capability and can accommodate balanced inputs. Then I noticed that the sampling rate for the 4x10HD was higher then the 10x10HD. Listened to some technical jargon from some people smarter than me and decided that the sampling rate did not have much relevance to my intended application...Ugh! I'm great at making things harder than they need to be.

Anyway, I'm going to get the 10x10HD with the 4X10 plug-in. This will leave the door open for future expansion and the remote (IR) capability will allow me to move on from my SMS-1 completely. Any objections?

Can someone post a link to the to the specific xlr/phoenix connectors to use?

I have the 10x10 and read some of that sampling rate stuff you brought up (was over my head). But, why go with the 4x10 plug in instead of the 10x10? Also why worry about the xlr/Phoenix connectors when can use RCA? Just curious as to what I'm doing wrong if you're opting for things different than how I'm using it. I do have my LCRS hooked up to it instead of the Stewart EQs that came with my screen. The sampling could affect the higher frequencies of them though, correct? I can't hear above 14k-15k (am redownloading dog whistle now to confirm as my daughter could hear way higher than me but don't recall exactly where I stopped hearing but was low for sure) or so I don't think but like I said didn't really understand what y'all were talking about anyway.

Note, my 10x10 came with faulty power supply plug. Not surprising since about everything I've bought in past two years has had issues.

14.8k is where I stop being able to hear according to iPhone app
Edited by audiovideoholic - 3/15/13 at 5:06pm
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: DIY Speakers and Subs
AVS › AVS Forum › Audio › DIY Speakers and Subs › 16 x 18's in a 1500ft^3 Space - Popalock's Sub Build