Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators - Page 6 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #51 of 181 Old 12-01-09, 04:36 AM Thread Starter
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Mfishmike
 
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Location: Clear Lake Area, Texas
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

5 Hz? Whoooooo... I wonder what else I am going to break in my home? There has been a lot of stuff that has been destroyed in the past. You had mentioned wanting to get them coated in a "bedliner" material. I looked into a product called Hurculiner to treat my electrical truck I purchased and restored a couple of years ago, but I went with a commercial company to do the work. You can get a quart to try. If you like it, then a gallon some rollers should do the trick. Use a sample board. Most auto stores around here have it on the shelf. I didn't like it because it wouldn't hold it's shine in the weather. Well congrats on your project Raven!


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Lonely Raven wrote: View Post
Crafty way of installing that poly fill! I just threw pillows and a line of acoustic blanket in mine! LOL

As for getting down to 15Hz...well, I'm not sure if my measurements are correct, but I just updated my post. I've got some repositioning to do, but it looks pretty solid down to 5Hz.
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post #52 of 181 Old 12-01-09, 08:08 AM
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Raven
 
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

I'm only a half-step ahead of you, and yours is much cooler! I'm looking forward to seeing how yours plays out.
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post #53 of 181 Old 12-01-09, 09:29 AM Thread Starter
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

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Lonely Raven wrote: View Post
I'm only a half-step ahead of you, and yours is much cooler! I'm looking forward to seeing how yours plays out.
I've got many more steps to go with all of the laminate work and grills. I may ask the Shack's group to all come to my house to help carry it in when it's done!

I am preparing some Bang and Olufsen drivers and passives to be shipped out and I have a bunch of rectangular covered wool packs that they install in their Redline series speakers. I'll probably figure out a way to nicely install a few of them as wool is an excellent fill material and really enhances the speaker's musical quality. A lot of folks don't know that. I purchase pure Romney wool and install it in my Audience A3 builds.

Hey if your's sounds great....who's to say mine is cooler....we are let's just say equals in satisfaction!

Mike
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post #54 of 181 Old 12-01-09, 11:58 AM
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

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Mike Cason wrote: View Post

Hey if your's sounds great....who's to say mine is cooler....we are let's just say equals in satisfaction!

Mike
My thoughts exactly...but with passives, I find your build technically cooler. The only two cool factors I have are #1, I'm the first 21" build, and #2, I built everything on prime numbers...even my bracing are spaced in primes.
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post #55 of 181 Old 12-01-09, 08:18 PM
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

Heh, primes. I build everything spaced to the Golden Ratio, and multiples thereof!

Very nice build, I'll be back every day now to see how it finishes.
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post #56 of 181 Old 12-01-09, 10:06 PM Thread Starter
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

Well I'm ready to seal the coffin. I've decided I've got enough polyfil and the small amount of Sonic Barrier should handle any standing waves or distortion, so I'm sealing it up. Every hole is pre-drilled and ready for the glue and silicone.

I had a driver delivery I had to get to UPS and needed a puter battery to keep my system running, so here is where it's at tonight. After wire transferring funds to China for driver freight tomorrow, I'll get back on it and try to make some progress.

Hey fellows I've got the new F1200TS today and I've got some excellent reports for you and I haven't even used it yet. It is a masterpiece of it's own kind. I've got a lot of input from folks in the pro use and I'll post that info when I get some more time.

I appreciate the support!

Thanks
Mike
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post #57 of 181 Old 12-02-09, 09:39 AM
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

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Pikefish wrote: View Post
Heh, primes. I build everything spaced to the Golden Ratio, and multiples thereof!

Very nice build, I'll be back every day now to see how it finishes.
I couldn't figure out exactly how to implement the Golden Ratio in my box, though the primes bring it close. I was even going to go as far as doing the "seashell spiral" as my bracing, just for grins...but seeing as how I was on a time limit (built over vacation) and sick, I sorta tossed all the fancy stuff out the window and just went with primes.

Mike, quit teasing with wimpy photos, lets see some nice big build progress!!

Last edited by Lonely Raven; 12-02-09 at 09:51 AM.
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post #58 of 181 Old 12-02-09, 12:11 PM Thread Starter
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

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Lonely Raven wrote: View Post

Mike, quit teasing with wimpy photos, lets see some nice big build progress!!
I've got two jobs and by my standards, am coming along fairly fast. I just picked up the raw materials 10 days ago and sold all of my other speakers and amplifiers and shipped them along with some driver orders. All the equipment is here, the back is now on and secured, and when I get back from the bank, I'll start on the bottom and the feet. I get my 18" 2100 gram passives tomorrow. Laminate should start to go on tomorrow if I don't have any service calls.
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post #59 of 181 Old 12-03-09, 09:28 AM
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

I know! I'm just funnin' ya!

I should talk, I've been too tired and busy to get real measurements from my system, and still haven't hauled it out to the middle of the living room for more photos.

But I did veg in front of the big screen and finally watched Rambo IV on Blu-Ray. I actually clipped my EP2500 on the mortar fire scene! The impact was impressive! Hell, even TV with the 21" has more impact.
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post #60 of 181 Old 12-03-09, 12:10 PM Thread Starter
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Re: Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators

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Lonely Raven wrote: View Post
I know! I'm just funnin' ya!

I should talk, I've been too tired and busy to get real measurements from my system, and still haven't hauled it out to the middle of the living room for more photos.

But I did veg in front of the big screen and finally watched Rambo IV on Blu-Ray. I actually clipped my EP2500 on the mortar fire scene! The impact was impressive! Hell, even TV with the 21" has more impact.
You should get more lows through your TV than a music concert if you have a good receiver putting out a good LFE signal to your sub because the movie directors add the THX and high impact scenes with extra lows and punch, like a war tank sitting next to you, or U571 with the depth charges. Watching a clip from the Haunting, you would think the sheetrock would come off the ceiling with my other two stacked subs it was so earth shaking!! I can't even imagine what the Texas monster is going to do?

Off to get the passives at UPS and the laminate will be started today. There's lots of sanding and tweaking to get to this point. The additional birch bottom is installed too.

Did you really mean 5 hz? How did you measure that low of a frequency? Typo?
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