This is my first post so take it easy.... I would like to build a second sub to add to my current home theater system, (B&W DM300 series - front ,center, surrrounds and asw500 sub. Denon 1802 recvr.)
I am thinking of using the Dayton 12" Titanic MKII in a vented box , EBS.
The white paper posted for the MKII Vented gives the following:
Box Volume 4.83 ft3
Fb 19.47 hz.
Vent 4"D x 15.2" L
F3 21.43 hz
F10 15.1 hz
Output @ 20hz - 101.5db
Typical In-room response
F 10 11.0hz
Output @20hz- 119 db
I am planning to use Model 50-6281 250 watt sub amp from MCM Electronics and use Sonotube for the enclosure with MDF top and bottom.
I used the Sonosub Construction Kit software to calculate .
The software says the 24" Sonotube will be 21.78" and the port will need to be 4"by 15.2"
This will be my first DIY speaker project and I would like some opinions or suggestions. I'm not a true audiophile but I am slowly learning.
Please let me know if I'm on the right track or out in left field.
a similar project worth considering would be the 12" Shiva
page 20-24 is the project i refer too directly
im in the process of building one now, ive heard some wicked reviews on it though, ill let you know.
The Shiva looks great. How close are you? Any pictures?
I ordered the amp from MCM yesterday. Not sure how long that will take, but I won't be able to get started for a couple of weeks anyway. If I don't decide on the speaker ,it may be a little longer.
Keep me updated on your progress....
getting close. ill post complete pictorial when is complete, hopefully soon after my bookshelves are done.
How some details on the bookshelves?????
With the 142.5ltr vented shiva are u using flared ports, if so where did u get them from?
Im going build the 85ltr vented shiva but cant find the flared ports in australia, so I was thinking of making the box with a slot port any ideas?
Whats the go with correction factor on slot ports? something about friction of the air in the port?how do u work it out?I use Winisd which doesnt factor this in I've heard?
Slot port isnt really the way to go, from what ive heard if u dont stick to the plans pretty accurately then they will turn out a little less then anticipated.
There is a place in Melbourne that can do the Flared port and they have another nice trick that you might be interested in, i am looking for the same ports and i am going in tomorrow to pick up my SEAS drivers and looking at the ports. I will get pricing etc for you and be back in a day.
Thanks keep us posted!
What is wrong with slot ports?
I've built a few car enclosures with slots and they work well, apparently if u dont use the correcting factor the port is tuned lower than estimated by Winisd/speaker simulators?(that's not bad is it, unless u are tuning really low)
the only problem i would have is that it is untested with this particular system, and the flared ports are available so y not use them.
this is a stupid question i know, but i need it answered non the less.
can i have ported speakers with a sealed sub?
(sorry, having a mental blank here)
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