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7 SEOS12's, 7 Cel 15's, 6 Dayton UM's, Build Thread - Page 8

post #211 of 411
Thread Starter 
False Alarm. It was a NASA bug.

You see: I launched into space the wire crimps module which is made in the USA, and then also the Celestion space module which is made in the UK; and once in outerspace the modules didn't align because of the differing measuring systems.
But unlike NASA, it luckily it doesn't cost me $2 billion dollars to fix.

Connection was loose, which sounds exactly like a fried woofer.

Problem solved.

I assume all 7 15's are good still.




All measurements taken at the LP.

and here is the ECM8000 of digital "active" mode with a working mid, and after I eq'ed the mid and tweeter by ear to my liking.
(and 6 subwoofers added, because I just happened to have them on)

To be honest I can't tell the difference in the graphs, looks the same to me ignoring the subwoofer band, but I can hear the difference with my ears.



Quote:
Originally Posted by Erich H View Post

You're comparing $900 woofers to $50 woofers. You can beat pretty hard on a $900 woofer. Sending 1000 watts into a $50 woofer probably isn't a good idea. smile.gif The original design was great. You should've simply built the original design in the same box size and then run everything. Brute testing things with no crossovers or without a box is going to lead to some issues. The bigger the box, the less power the woofer will take. As mentioned earlier in the thread, if you needed a speaker that could handle 750+ watts, you should look towards the Fusion-15 with the B&C woofers. The buy out Celestions are very good, smooth woofers. But never designed to take huge amounts of power in large boxes or free air.

Either way, I bought a couple extra woofers. One forum member accidentally put a screw driver through the surround, so I've got maybe 1 or 2 of the buy outs left if you need a replacement.

It's a good thing you got extra for those who need it.
About 6 years ago I almost put a screw through a woofer with power tools, I've since learned to take it really really carefully when performing that operation.

It's a lot worser than that wink.gif my main amps are: 7400w @8 and 10600w @4 according to the whitepaper, peak-power of course. Let's just say: The amps never get out of first gear no matter how hard you push it. biggrin.gif
Edited by BassThatHz - 8/26/13 at 6:00pm
post #212 of 411
lol, that would do it.
post #213 of 411
Thread Starter 
Quote:
Originally Posted by AV Science Sales 5 View Post

I mentioned that, because it looked like he was using glue only. That is how I built my speakers, no fasteners.

I use mostly glue, and a few brad nails in the corners to hold things together before I clamp it.
post #214 of 411
I gotta wonder if running the woofers box less with as much power as you have ruined your woofers.

How do you know they're ruined? What's wrong with them?
post #215 of 411
Tux,

I don't understand all of the box-less testing shenanigans either, but it looks to have been a misdiagnosis... wink.gif
Quote:
Originally Posted by BassThatHz View Post

False Alarm. It was a NASA bug.

You see: I launched into space the wire crimps module which is made in the USA, and then also the Celestion space module which is made in the UK; and once in outerspace the modules didn't align because of the differing measuring systems.
But unlike NASA, it luckily it doesn't cost me $2 billion dollars to fix.

Connection was loose, which sounds exactly like a fried woofer.

Problem solved.

I assume all 7 15's are good still.
post #216 of 411
Oops, I didn't catch that. Viewing on my phone!
post #217 of 411
Did you finish these bad boys up ?
post #218 of 411
Thread Starter 
I'll be starting Box #3 & #4 this weekend.
Basically, the same thing all over again.

Having given away one of my amps and processors I'm short on channels and DSP.
I can only support 5.2 at the moment in RCA, instead of 7.3 in XLR
I need another DCX, a clone, and 3 cleanBoxes or an XMC-1.

and then after that, there is 3D!!!!!!!!!

It just never ends does it?
post #219 of 411
Quote:
Originally Posted by AV Science Sales 5 View Post

You make a box bigger to get lower extension, so I don't understand why you made them bigger if you are crossing them to a sub at 100 HZ?

Not only that, you could be decreasing SQ because the larger radiating area of the bigger panels is making radiated noise louder.
post #220 of 411
Thread Starter 
I got a chance to listen to it with polyfill, it definitely sounds better, I set the XO to 50hz and I'm taking it easy until I know it can handle stuff that low.
post #221 of 411
If u built the crossovers to specs the low end of the cheap thrills is 65 hz
post #222 of 411
Thread Starter 
I got 11 out of 14 XO's built. Got another two tweeter XO's built, 3 more to GO!!!!!!!!!!
post #223 of 411
Quote:
Originally Posted by wormraper View Post

If u built the crossovers to specs the low end of the cheap thrills is 65 hz

in all but certain very specific situations, crossover doesn't determine bass response, enclosure does.

EDIT: just to make sure we're all on the same page here, when he says he "set the crossover to 50 hz", he's referring to the bass management in his receiver or processor. "crossover", as you and i are using it, is referring to the passive crossover in a multi-way loudspeaker.
Edited by absolootbs - 8/30/13 at 8:52pm
post #224 of 411
Thread Starter 
I got 12 out of 14 XO's built. Ran out of speaker wire again! I'll have to go buy some more tomorrow.
post #225 of 411
Thread Starter 
I bought 150ft of 14awg wire this time. Both Red and Black just to be fancy.
Now I can proceed with completing the last two XO's.

Things are gonna come to a screaching halt once I finish the second pair of SEOS's here, I just paid $4000 in bills today, and I have to pay another $4000 worth of bills coming up, so that eats up the rest of the speaker budget until 2014, unfortunately that's the way life goes sometimes...
I've spent $30,000 on my sound system this year, so I think it's time to throw in the towel... for now... LOL biggrin.gif
post #226 of 411
Thread Starter 
Here's what she looks like.

Ebony Maple vs Black Ash


I might do one more coat and then some sanding.

I think I will stay away from gloss.
Me + Gloss = Disaster biggrin.gif
post #227 of 411
Those are looking great!
post #228 of 411
Wow! Those do look amazing!
post #229 of 411
Thread Starter 
Much sexier than MDF, that's for sure!

Bought the wood for the second pair today. Now I have no excuse to not be building something. wink.gif
post #230 of 411
So you are doing 7 for 7.1 ?
post #231 of 411
Thread Starter 
Quote:
Originally Posted by Mfusick View Post

So you are doing 7 for 7.1 ?
Correct.

I wanted flawless panning.
I've been mixing different brands of speakers in movie-mode for the last 7 years, time for a change. wink.gif
post #232 of 411
Thread Starter 
Here's a Dynamics Test of my rear SEOS's.
post #233 of 411
Thread Starter 
In other news, my 100mW green laser pointer has arrived.

Compared to my 200mW red:




http://www.rayfoss.com/productn.asp?ArticleID=200
http://www.rayfoss.com/productn.asp?ArticleID=124

Boys and their toys biggrin.gif
post #234 of 411
What would you use it for?
post #235 of 411
Pop ballons, point really far, blind pilots.... is there really any useful you can do with them? Oh and i hope you do wear goggles, even partial reflections of something can permanently damage your eyes.
post #236 of 411
Thread Starter 
My lasers will burn right through a CD case. Class 3b laser. Not for kids, that's for sure.

I'm extremely careful with them, they will cook your eyes for sure!

Here's a beam shot vid:
post #237 of 411
Thread Starter 
Milestone #1 achieved. All 14 out of 14 xo's are done. Here they is...
post #238 of 411
That is going to be one bad a** setup!
post #239 of 411
Thread Starter 
Speakers #3 & #4 is coming along nicely.
post #240 of 411
Thread Starter 
Quote:
Originally Posted by eXa View Post

point really far.

Oh yes, this tree is 150ft away, and that mountain is 2 miles away! tongue.gif
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