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post #61 of 1130 Old 04-01-2006, 07:30 PM
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That is a stunning speaker.

Nice work
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post #62 of 1130 Old 04-03-2006, 01:42 PM
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Mine has been done for a few months, but I just finished putting the veneer on it....anyways:

Here is my Sub:

Driver: AE Speakers AV15 15" Longthrow driver
Amp: Oaudio 500W Bash Plate amp with PEQ
Design: See my Thread here


More tweaking and measurements still left, and finish on the sub still pending....but it is up and running, and sounding better than my $1300 SVS Ultra thus far I will update as I get more results and do more work, but here are the results thus far:


for comparison, here is the SVS PB-12 ultra:


here are the results with the AV15 and Ultra in pair, no EQ:


ps- Big Thanks and Help from Chasw98 in the construction of it...couldn't have done it without his help and tools!

UPDATE: here is the final product!! (click to enlarge)



more pics here:
http://entertainment.webshots.com/album/550404344xwDkkr
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post #63 of 1130 Old 04-03-2006, 04:30 PM
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Quote:
Originally Posted by irfan View Post

Any ideas on how to keep the Left main speaker from walking across the top of the sub in bass heavy scenes? apart from bolting it down?

Auralex MoPad Isolation pads will do the trick. I use 2 of them for my left and right mains that sit on top of 15" avalanche subs.

http://www.amazon.com/exec/obidos/tg...91322?v=glance
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post #64 of 1130 Old 04-04-2006, 04:16 AM
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Some very nice work here. Mods, please STICKY this thread...

Mark

Mark Techer

I love my Constant Image Height system!
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post #65 of 1130 Old 04-04-2006, 05:57 AM
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Quote:
Originally Posted by CAVX View Post

Some very nice work here. Mods, please STICKY this thread...

Mark

I second that request. It should be a reference thread for people coming to this forum.
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post #66 of 1130 Old 04-05-2006, 05:19 AM
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Here is a photo of my completed Alpha LS project and one of my helpers.

Alpha LS Guy
Formerly known as Maggie Guy
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post #67 of 1130 Old 04-08-2006, 04:26 PM
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Credit for the success of this project goes out to the guys over at HTGuide Forum's Mission Possible DIY, especially Thomas, Chuck, Steve, Ben, and collo. I could not have done it without all of their advice and knowledge.

Soundsplinter RLp-15 driver in 24" dia. x 46" H Sonotube, 300L net internal volume, 8" dia. x 33" L sonotube port for 17.5 Hz enclosure tune. Low-gloss dappled finish on end caps and floor plate is Plasti-Kote truck bed liner. Tube is covered in black speaker carpet. Port grille is DIY made from a ring of MDF and speaker grille cloth (cloth looks purplish in photo but black in person). The wall-mounted amp is a Samson S700 with each 350W channel driving one of the dual 4-ohm voice coils of the driver, for total of 700W. Amp is remote powered on/off by receiver's low-current switched outlet through a 15A solid state AC relay. Cost of build: driver $300, amp $300, materials and incidentals $200.









Uncorrected room response (tough room!)



Initial FR after equalization with Behringer DSP1124A Feedback Destroyer Pro (still tweaking)...



AutoCAD LT 2002 CAD model for download:
http://home.insightbb.com/~henry.men...h_dia_tube.dwg

.DXF CAD model for download:
http://home.insightbb.com/~henry.men...h_dia_tube.dxf

Design and construction thread
http://www.htguide.com/forum/showthread.php4?t=18713
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post #68 of 1130 Old 04-09-2006, 12:43 AM
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VERY nice, good work on the finishing. All these super flat FRs are tempting me to try a BFD out.
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post #69 of 1130 Old 04-09-2006, 06:21 AM
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Quote:
Originally Posted by SteveCallas View Post

VERY nice, good work on the finishing. All these super flat FRs are tempting me to try a BFD out.

do yourself a favor and invest in some room treatments first...all the FR graphs are nice, but I would be willing to bet that as soon as the mic moves, the peaks and dips are back. might be nice for sitting in the sweet spot....
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post #70 of 1130 Old 04-09-2006, 07:59 AM
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Quote:
Originally Posted by need4speed View Post

do yourself a favor and invest in some room treatments first...all the FR graphs are nice, but I would be willing to bet that as soon as the mic moves, the peaks and dips are back. might be nice for sitting in the sweet spot....

I've been thinking about building some tube traps like these:

http://www.teresaudio.com/haven/traps/traps.html

but have been waiting to complete the sub and see what the specific issues are first. But this discussion should happen in another thread not the gallery.
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post #71 of 1130 Old 04-23-2006, 08:17 AM
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Design Thread: http://www.htguide.com/forum/showthread.php4?t=17748
Design: Ported, tuned to 17hz
Enclosure: 7.77 cubic foot box after subtracting braces, etc.; 24.5 x 24.5 x 33 external dimensions
Driver: Dayton 15" DVC
Amplifier: Rythmik Audio 250w Plate Amp with a 16hz rumble filter
EQ: None yet
Cost: around $320 total
Prior Experience: 1 - built some half decent speakers for a science fair
Summary: This was a really fun project to make. The whole process probably took about 6 months including all the research, ordering of the parts, and actually constructing the enclosure. This thing gets loud and low, but it still sounds good for music. I haven't tested it's full limits yet, but I've never heard it bottom out or anything. The finish is Duplicolor truck bed lining, I used a quart for basic coverage and then used a spray can to get a more even finish, holding the can about 2 feet away while I sprayed. The side panels are 22 x 24.5, and are covered by aluminum flashing that you can find at any Home Depot for about $10 for a 2'x10' roll.



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post #72 of 1130 Old 04-24-2006, 05:15 PM
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15 inch Quatro
rythmik audio a350
END TABLE!
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post #73 of 1130 Old 04-29-2006, 05:38 AM
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Hey all, I'm a newbie and this is one of my crowning acheivements here. Tese were built about 3 years ago, I did my own rear speakers too but I think I could have done a better job. They ain't much but they sound great. Need to upgrade the bass drivers though. They perform great but I think I can get more out of the enclosure with better drivers. For right now as the saying goes, if it ain't broke don't try to fix it (yet).
LL
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post #74 of 1130 Old 04-29-2006, 08:49 AM
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Nice Job people on the gallery....

I'll try and get David to sticky some pertinent info specific to DIY + gallery soon...

keep up the good work.

V.X.Donique
Sensory Sciences
Creator of the AVScience DIY Speakers and Subwoofers Forum
http://www.avsforum.com/t/627113/diy-subwoofer-section
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post #75 of 1130 Old 04-30-2006, 06:27 PM
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Driver:Sound Splinter RLP15
Enclosure:4.5cubic ft sealed
Powered:EP2500
LL
LL
LL
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post #76 of 1130 Old 05-04-2006, 03:48 PM
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Finally got this baby finished.
She's 22" high, 6.5cu/ft., slot-vented (tuned to 21Hz) and custom made for this corner installation. Enclosure is well-braced 3/4" mdf, with heavy flaked oak veneer. Finished with satin oil-based poly for durability and "teak gel stain" to match our existing oak furniture. Baffle is 1" MDF done with flat black, topped off with clear satin water-based poly.
Oh yeah, performance? Our open-plan house is now filled with very deep, smooth bass. This unit does have punch (when called for in many HT scenes) and works well in tandem with my existing XLS10/12PR unit that's powered by a Dayton 250 amp. Used some Larry Carlton and Sarah McLachlan material to check out it's "musicality" - easily passed that test.
The MCM Audiosource 150W buyout amp (on the right in the photos) powers the 4 BassShakers installed in our couch. Dialed in properly, anything below 80Hz is seamlessly heard and felt.
Watched a couple of episodes of 24 to give this integration a test run. Sean Callery's a genius with those throbbing low notes (you know, when Jack Bauer is caught in another %@&# situation) that gets everything on the walls and shelves rattling. Holy Crap!!
Yep, I'm happy....don't know about the neighbors though??

Sub on end showing internal bracing:


Installed in corner (getting a little corner and floor loading here) with BassShaker amp on right:
Bombelman likes this.

"While we're at it" - the four most dangerous words in Home Improvement
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post #77 of 1130 Old 05-04-2006, 05:20 PM
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Absolutely kickass job on the Quatro/240 corner sub technimac. I am impressed!
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post #78 of 1130 Old 05-04-2006, 05:49 PM
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Quote:
Originally Posted by ifeliciano View Post

Get some wall mounts.

Blu-Tac.

Or, get some stands and mount the speakers in front of the racks. Might image a little better.

The First Clarke Law states, 'If an elderly but distinguished scientist says that something is possible he is almost certainly right, but if he says that it is impossible he is very probably wrong.'
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post #79 of 1130 Old 05-04-2006, 06:10 PM
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technimac, that looks outstanding, you really did a superb job Please, please, please don't take this the wrong way, but I have to wonder - you put all that work into the enclosure, why not go with something a little better than the Quatro?
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post #80 of 1130 Old 05-04-2006, 07:52 PM
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That has to be the coolest-looking sub I have ever seen, technimac. The woodwork is flawless - look at the baseboard and corner reflections...
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post #81 of 1130 Old 05-04-2006, 08:04 PM
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technimac,

Great job I would like to see a build thread on that.

~Bob
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post #82 of 1130 Old 05-05-2006, 11:12 AM
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Thanks for all the compliments on this project. Your experiences, as detailed here have helped immensely
Steve, I've been reading about all the recent dual RLp-15 projects in the pipe and if I was planning to build a new sub today, that would probably be at the top of my list. If I sell this one, that'll probably be my next sub project. Thank you for doing a great job of evaluating the "sub-options" for the DIY community, and for folks like me your expertise and recommendations are invaluable.
But I bought the Quatro over a year ago, and the amp last December, so I was committed to doing this project. Sure, the DVC 15 / Bash 300 combo would probably have been a better choice, but I did learn a lot building this one.
For instance: raw heavy flaked oak veneer doesn't glue down well with the "iron-on" yellow glue method nor with solvent-based contact cement! The "flakes" tend to be thinner or "cupped" and as a result can have voids beneath them. Next time I'll try using either a vacuum bag (with veneer glue), or a veneer press (with polyurethane glue laid-on with a very-finely-notched trowel/spreader).
I had to use a syringe to inject PVA glue into the "flake-voids" then press them overnight - that took about 2 weeks. In the end, the "highly textured flakiness" of the oak helped to disguise any "glue-injection slits" I had to make in the veneer.

Close-up of finish shown in photo below.

Oh yes, it weighs in at 118#.

Cheers, Bruce
LL

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post #83 of 1130 Old 05-05-2006, 11:41 AM
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Did post pictures but webspace down.
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post #84 of 1130 Old 05-05-2006, 05:11 PM
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Started this project a month ago and I am very pleased with the results.

PE 2.0cu^ft box
Dayton RSS315-HF 4 Driver
PE 500w BASH Plate Amp
Chrome Spike Feet
$550 total including shipping



~Bob
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post #85 of 1130 Old 05-05-2006, 06:05 PM
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Nice Bob. How did you attach the grille cloth to the frame? Looks very clean.
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post #86 of 1130 Old 05-06-2006, 07:34 AM
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Maggie Guy, Nice job! Awesome speakers. I assume some of those are just PR's right??

Only time will tell what the future holds...so until then JAM LIKE THERES NO TOMORROW!
-Rob

My Natalie P project
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post #87 of 1130 Old 05-07-2006, 03:36 PM
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Quote:
Originally Posted by Maggie Guy View Post

Here is a photo of my completed Alpha LS project and one of my helpers.

Cool!

Another Adire Extremis fan I see.

You'll love my next post. Check out my ESL / Line array center.
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post #88 of 1130 Old 05-07-2006, 03:42 PM
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Here is a two for one:

My 4x15” AV15 Infinite Baffle (full story and pics)

My brand spanking new SL3-eXtreeme Center channel (full story and Pics)

BTW- the acoustically transparent screen is removed for this shot.


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post #89 of 1130 Old 05-07-2006, 03:42 PM
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Quote:
Originally Posted by Exocer View Post

Maggie Guy, Nice job! Awesome speakers. I assume some of those are just PR's right??

Thanks,
They are all active. Four ports on the back of each speaker. Here is some more information on the design.

http://www.gr-research.com/discontinued/alpha.htm

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Formerly known as Maggie Guy
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post #90 of 1130 Old 05-07-2006, 03:43 PM
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Quote:
Originally Posted by JonFo View Post

Here is a two for one:

My 4x15 AV15 Infinite Baffle (full story and pics)

My brand spanking new SL3-eXtreeme Center channel (full story and Pics)

BTW- the acoustically transparent screen is removed for this shot.



Schweet!!

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Formerly known as Maggie Guy
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