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Multi-Way Conventional loudspeakers with crossovers

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Old 7th June 2006, 11:14 PM   #1
hongrn is offline hongrn  United States
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Default Finally Finished my RS Towers!

It's been a while, but I finally finished my RS towers and wish to share a few pics with you guys. Between the new job, the new house and all the associated stress, woodwork has been my savior. All the drivers are from Dayton, except for the Seas H1212 tweeters which were purchased from Madisound. Here's the summary:

MTMs with RS180 midwoofers wired in parallel and Seas H1212 tweeters, crossed at 1,800Hz, LR4, Zobel network, 3 dB BSC, in vented 1.1 cu ft boxes. The subs each are in 1.6 cu. ft boxes tuned with a 12" Dayton DVC passive radiator with an additional 255g mass, resulting in a F3 around 25Hz. Power is supplied by dual PE 300W BASH amplifiers. Total height is 54 inches, and weight is approximately 46 tons each (seems that way!). Once the whole thing is lugged upstairs to the home theater room, the MTMs will be glued to the top of the subs.

The MTMs, front and back of the subs are wrapped in red oak veneer, and stained with 6 coats of Minwax Ebony. The sides of the subs are real red oak wood glued on top of the MDF, and stained with another six coats of Minwax Sedona Red. Both the Ebony and red stains are purposedly left dull to prevent reflections from the movie screen. I really like the contrast between the black and red. The cabinets are far from perfect, but to think that a year and a half ago, I didn't know which end of the router to hold...

How does it sound? Awsome, but you guys knew that about the Dayton drivers.

More pics on my website...

Hong

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Old 7th June 2006, 11:37 PM   #2
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Those look amazing!!

Where did you get the spikes/feet for the subs? I've been looking everywhere for something like that!

Excellent work,
Tristan
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Old 7th June 2006, 11:40 PM   #3
badman is offline badman  United States
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Looking sharp! Congratulations!
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Old 7th June 2006, 11:43 PM   #4
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Excellent work Hong. So nice to see someone else using a built in woofer and amp. And being a passive radiator fan, the whole thing looks great to me.

What woofer did you use with the Dayton drone?
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Old 8th June 2006, 12:23 AM   #5
sqlkev is offline sqlkev  United States
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I think he got those spikes from partsexpress as well,
probably these http://www.partsexpress.com/pe/showd...number=249-720

nice work Hongrn,
did you design the crossovers yourself? or whose version of the dayton MTM did you go with?
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Old 8th June 2006, 02:28 AM   #6
hongrn is offline hongrn  United States
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Quote:
What woofer did you use with the Dayton drone?
The RSHF 10" sub. Thanks.

Hong
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Old 8th June 2006, 02:31 AM   #7
hongrn is offline hongrn  United States
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Quote:
did you design the crossovers yourself? or whose version of the dayton MTM did you go with?
I do my own crossover, that's how I learn, but I read about how guys around here do things quite a bit. Thank you.

Hong
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Old 8th June 2006, 04:08 AM   #8
sqlkev is offline sqlkev  United States
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Quote:
Originally posted by hongrn


I do my own crossover, that's how I learn, but I read about how guys around here do things quite a bit. Thank you.

Hong


I looked at your page, guess you haven't load up the details on the project yet.
Please do share if you documented the project.
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Old 8th June 2006, 01:19 PM   #9
Zaph is offline Zaph  United States
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Very nice!

I almost hate to say it, but the thing I'm impressed with the most is those cabinet feet. I didn't know PE had those! I just ordered a whole load of them. I've been looking for something like that for a long time...
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Old 8th June 2006, 01:46 PM   #10
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Very nice work Hong. I notice that you used a mirror-image design for the subs: the active drivers are inside and the passives are outside. Did you have any particular reason for choosing that design over actives outside/passives inside?
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