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Old 4th March 2010, 05:51 PM   #1
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Default My Eminence omega pro 15 finally gets a luxury home

some piccys of my diy eminence sub.

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Castors just attached, this thing is heavy.

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Front grille, was tricky and time consuming. I cut out two interlocking hoops of ply with the router.

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The reverse side of the front grille, veneering was tricky and painful!

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Pic of it stood up, was constructed out of two whole sheets of 8' x 4' 18mm MDF

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I even had a stainless steel name badge laser etched and gave it it's own brand lol Storm force SU-15-600

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The rear!

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Shot of the redicilous base made from 6 sheets of 18mm mdf.

I'm trying to recover the construction photos from my camera, been playing me up.
Total weight is 88KG and tuned to 30Hz. Enclosure volume is 108 litres.

Veneer is raw north American black wallnut Finished with diamond hard poly varnish.

Size: 27" H, 22" W, 21" D

Last edited by Village Plank; 4th March 2010 at 06:07 PM.
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Old 4th March 2010, 10:06 PM   #2
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I love the name badge
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Old 5th March 2010, 12:05 AM   #3
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Nice work!
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Old 5th March 2010, 01:27 AM   #4
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Looks great. How is it powered ....crossover / amp .... and how does it sound ?
Cheers.
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Old 5th March 2010, 08:44 AM   #5
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Powered by a dedicated crown I-T8000 amp with brehinger active x - over

Sounds clean and awsome. What I dont get though is in the params for this driver, Xmax is down as 4.8mm. I'm telling you now, I've had this thing flexing to AT LEAST 20mm with no audiable distortion (to my ear anyway) nor any bottoming out. I shoved one of those car bass cd's up it yesterday, Techmaster PEB's "It came from outer bass" and the last track has a powerful 14 Hz bassline. The cone went crazy without any bottoming out or farting sounds. This thing can almost levitate a carpet!
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Old 5th March 2010, 09:46 AM   #6
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Track I used is the last one called "bass out"
I recommend you download it and try it through your subs. BE CAREFUL WITH IT!!!
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Old 6th March 2010, 01:19 PM   #7
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Can't seem to find the last one you mentioned.
I'm not sure where the 14Hz figure came from. Played it through mine, gave no such thing. I'll need to double check, but I think mine has a subsonic filter...
Double checked. I used the one on youtube, watched the speakers carefully. Nothing on there drops below 30Hz.
I recommend 15 Step by Radiohead, if you want to try to bottom out your sub (hits at just less than 30Hz, but hits hard). Give that a go - start quiet though, slowly turn it up when the bass starts (around 20 seconds in).

Anyway, very nice subwoofer, looks good and will serve you for many years.
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Old 6th March 2010, 07:06 PM   #8
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Got thinking - the person that recorded it may have had some kind of infrasonic filter in place, so might youtube etc, so chances are that a CD of it will be better.

The thing with pro woofers is that Xmax (linear excursion) is very low, but maximum mechanical excursion is very very high in comparison. The same is true for most hifi gear - my sub is rated at 3mm Xmax (I think that's p/p, but I'm not sure). I can hit 12mm p/p before it bottoms out. Car audio stuff, in contrast, tries to make Xmax as high as possible, so the figures look better.

Chris
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Old 7th March 2010, 05:43 PM   #9
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Quote:
Originally Posted by chris661 View Post
Can't seem to find the last one you mentioned.
I'm not sure where the 14Hz figure came from. Played it through mine, gave no such thing. I'll need to double check, but I think mine has a subsonic filter...
Double checked. I used the one on youtube, watched the speakers carefully. Nothing on there drops below 30Hz.
I recommend 15 Step by Radiohead, if you want to try to bottom out your sub (hits at just less than 30Hz, but hits hard). Give that a go - start quiet though, slowly turn it up when the bass starts (around 20 seconds in).

Anyway, very nice subwoofer, looks good and will serve you for many years.
Sorry, It's on It came from outer bass 2...... track 18 "bass out". Remeasured 14 hz it is
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