Ultra compact ported 15" Dayton Ref HO - Page 8 - diyAudio
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Old 7th January 2013, 07:11 PM   #71
maxo is offline maxo  United States
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Location: A Hole in Texas
Cool man
please post what you will do with your impulses, i am getting some PR12's from peavey also
and want to do your mods to them
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Old 7th January 2013, 08:53 PM   #72
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Quote:
Originally Posted by maxo View Post
Cool man
please post what you will do with your impulses, i am getting some PR12's from peavey also
and want to do your mods to them
Plastic speaker cabinets - improving internal bracing & damping

The stock impulse 100 seem to fall apart quickly as volume increases due to cabinet flex and leaks from the baffle, at lower volume they are great. I'm hoping that with the mods and a high crossover point, they will play clean and loud enough to keep up with the subs.

Last edited by turbodawg; 7th January 2013 at 09:01 PM.
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Old 8th January 2013, 02:03 AM   #73
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Bit more torture testing tonight. Had to pull the klipsch's off the subs because one was getting a really bad vibration in a spike foot around 60-70 hz, I just couldn't get rid of it. Moved the subs, cleaned the wood floor and feet, wiped on a bit of aquanet hairspray to the feet to effectively glue them to the floor. Also blutact'd a 25lb barbell weight on top of each sub. This seems to entirely keep the subs from moving around. Going hard with over 110 db spikes 15 ft away in a modestly sized living room, seems to have pretty good headroom above that. Only very occasionally can I get the 3rd light on the sub amp to flash, excursion seen so far maxes at about 8mm each way. They are VERY loud, and sound VERY clean.
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Old 9th January 2013, 03:36 PM   #74
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Last night I plugged up the ports with towels and added about 12 db of low end boost with a shelf filter and PEQ in the in dsp on the amp, and watched a movie at moderately loud volume. Very impressive overall, but seemed to be going beyond xmax on some ~20hz thumps. Xmax is 12mm, xmech is around 20-22mm. Plenty satisfying for normal movie watching, enough to rattle everything in my modestly sized living room, but about as hard as I would want to push a pair of these sealed.

I have to say, having the eq and DSP built into the sub amp is a huge bonus, it's quite flexable and easy to work with. I haven't even used the computer software even though it's been installed. For the roughly $50 steet price premium, it's a must.

For a $500 budget sub, you could do a single 15" ref HO in a larger ported box with a bridged nu1000dsp, and have anough left for the materials and cables.

Last edited by turbodawg; 9th January 2013 at 03:46 PM.
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Old 9th January 2013, 04:52 PM   #75
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That's xmech one way, not peak to peak correct?
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Old 9th January 2013, 04:59 PM   #76
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There has been some recent discussion of the Danley CS-30 as a pretty well rounded compact sub:

http://www.danleysoundlabs.com/danle...Spec-Sheet.pdf

No measurements yet, but I am going to claim that this 15" HO design is 15% smaller, ~30lb lighter, similar sensitivity, lower extension and higher potential output.
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Old 11th March 2013, 08:26 PM   #77
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Bump. Finally got done modding my pa mains, next step on this project is to build the grilles and finish the cabs on these.
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Old 26th March 2013, 02:01 AM   #78
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Have painted these and loaded them up with hardware. Had them outside for a test run this weekend, mains on 5ft poles above the subs, very impressed. Still need grills.

Click the image to open in full size.
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Last edited by turbodawg; 26th March 2013 at 02:22 AM.
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Old 26th March 2013, 02:07 AM   #79
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They look great! What amp you using?
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Old 26th March 2013, 02:14 AM   #80
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Quote:
Originally Posted by m R g S r View Post
They look great! What amp you using?
Thanks! It's party time!

nu6000dsp on the subs and a first gen adcom gfa-555 on the tops. Seems to be pushing the subs to around xmax with 3 lights on semi-solid with some EDM, no idea what sort of power that amounts to, have been meaning to put a DVM on the amp to check volts vs. the level lights.

Last edited by turbodawg; 26th March 2013 at 02:22 AM.
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