Brendan
What happens when you want to get ridiculously loud, but don't want to get some off the shelf pro gear?   You brow beat Mark Seaton into whipping it up of course!
(It doesn't hurt that he's an old college buddy.)

We took 2 Submersive drivers in vented cabinets for the subs and utilized Eminence beta12CX co-axials with some horn drivers for the mains.

Add a few power amps and a crossover and other bits of wire and shiny things, and wow. 

It's loud.  It's clean.  It has mojo. 
I'm going to clean up the boxes, fill the holes with bondo and use roll on truck bed liner to make them look at bit less home made.  Also have to install handles, feet, corners, etc.

Hopefully Mark will post a graph. 

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Stereodude
It doesn't look like you've got enough power on tap...
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Mark_Seaton

Brendan wrote:

It's loud.  It's clean.  It has mojo. 

...and isn't that what we all want?

Brendan effectively was the guinnea-pig for these two designs which I had floating around and hadn't yet had time to build up.  It is likely I will offer a 10" coax speaker down the road as a "fun-use" speaker.  i.e. less audiophile critical, but robust, efficient, and very good sounding.

The sub should sound great for music and handle plenty of power.  It just squeaks by as an 8 Ohm load, and is tuned to ~30Hz.  Without any EQ it should be +0/-3dB from ~30-100Hz and >95dB @ 1m/2.8V.  It's entirely within excursion limits above 28Hz with a 500W sine wave (8 Ohm nominal) across the range.  It doesn't hurt that the port has the cross sectional area of an 8" diameter port!  If Brendan bridges the 1850HD into the subs, the pair of subs should just tickle the 130dB @ 1m mark, which is well into pro-audio capabilites, with much more low end than most.
Mark Seaton
Seaton Sound, Inc.
sales@seatonsound.net
773-290-8436
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MikeDuke
SWEET.  130 is quite nice.
I simply love this stuff.
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mfine

WHAT?  DID YOU SAY SOMETHING?  I CAN'T HEAR YOU!

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MikeDuke
I SAID 130 could be fun
I simply love this stuff.
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Brendan
If anyone's curious, I took some photos of the guts, as I'm taking these things apart to fill the nail holes with bondo and then paint. I'm also going to put some insulation in them. 
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engtaz
I always like taking big wires and soldering them to small wires.  LOL  Looked like it was fun to build.  Congrats on the toys.
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Brendan
Progress!  Or should I say completion?  At least of phase one.

I now see why people use rhino lining versus DIY roll-on crap.  When it's 90 out, you get about 3 minutes to use whats in the tray before it skins over and starts to harden.  Anyhow, the end result is reasonable, IMHO.



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TheRick

The ones on top look like bigger versions of Mark's new "spark".     

Proud Submersive Owner! "Shakin the Midwest!"
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Brendan
The similarity is only skin deep...
These use an Eminence beta 12 instead of an imported 8". 
They have passive crossovers and external amplification.
The subs have the infamous Submersive drivers in them.

(I should read my own posts, I repeat myself.  doh!)
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JohnnyV

Your a lucky man...  1st because that setup will really boogy.. it's an instant party.  2nd because you have access to "surplus" submersive drivers.

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mfine
We all have access to those drivers.  Send Mark money via paypall and he will send you drivers.  Send more money and he will toss in an amp and enclosure, even more and he will come configure it.
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