[jazzscreamer]

I currently have an 8" ORB Audio sub in my home theater. My living room is about 20' X 12' and opens up to the kitchen that is about a 1/3 of the size of the living room. I currently have 2 10" AA arsenals that are sitting in my garage. I want a bigger sub stage. Something that will extend into the 20hz range. I would like to build an enclosure geared toward my home theater. FYI, I have some building skills, so I can build an enclosure for any box design. I have between 4.5-5.25cu.ft to work with on each sub in my living room. Here are the parameters of the Ascendant Audio Arsenal 10"
Driver Specs:
Znom ual 4 ohms
BL : 19
Re Dual 3.5 ohms
Sd: 330 cm2
Fs 29 Hz
Mms 150 g
Vas 31.2 L
Xmax 20.5 mm
Qms 4.01
Spl 83 dB 1W/1M
Qes .59
Qts .515
Rms 750W
Le 1.8 mH


-Bob

 

[Mike P.]

re: Triple 10" Sub Build

What is the power handling of the subs and what will you power them with?

 

[jazzscreamer]

re: Triple 10" Sub Build

They can handle a modest 500W rms each . I do not have an amp as of yet. Any ideas?

 

[Mike P.]

re: Triple 10" Sub Build

Each in 3 cu.ft net tuned to 20 hz looks good. The sub will handle 450 watts with a high pass filter at 18 hz. A slot port 2" x 8" x 32.5" long keeps the air speed to 27 m/s at 20 hz. If the subs are wired for a 4 ohm load the Dayton 1000 watt plate amp would work nicely.

 

[jazzscreamer]

re: Triple 10" Sub Build

That 's looks great. I was expecting a larger enclosure.

 

[jazzscreamer]

re: Triple 10" Sub Build

What would a rounded port calculation be. I have tons of PVC of different lengths and diameters. Are there advantages or disadvantages?

 

[Mike P.]

re: Triple 10" Sub Build

one 4 inch port wouldn't be enough as the air speed is too high. Two 4 inch round ports would need to be 53.25" each and the air speed would be 18 m/s.

 

[jazzscreamer]

re: Triple 10" Sub Build

Any suggestions on an amp to run these. Plate? Rack?

 

[Mike P.]

re: Triple 10" Sub Build

As long as it has a HPF at 18 hz it really doesn't matter if it's a plate or rack amp.

 

[jazzscreamer]

re: Triple 10" Sub Build

I have a budget of $350. Any suggestion?

 

[Mike P.]

re: Triple 10" Sub Build

The Dayton amp is on sale for $350.

http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-808

 

[jazzscreamer]

re: Triple 10" Sub Build

What would the dimensions for the slot port be if I put both subs in the same enclosure?

 

[Mike P.]

re: Triple 10" Sub Build

8" wide x 3" high x 22.75" long would keep the air speed under 28 m/s.

 

[jazzscreamer]

re: Triple 10" Sub Build

Well, I have an update with my sub needs. I recently talked to Chad at Epik about his MTM design that I just recently built. By the way, I love these speakers. So we were talking about my sub needs and I'm going with a 3 10" AA Arsenal sub configuration. I will be getting a 1000W Bash Amp to go with this. (Yes, it will handle a 6 ohm load very well as it was designed that way) Each sub will be getting around 333W each. I'm waiting for some enclosure specs and what not, but was wondering if someone could model this up for me tuned to 17hz or 14hz. I have 9cuft to work with. The design we talked about was for a prototype Conquest design that just didn't happen. Anyway, I believe we are looking at 3-5 3"ports. Thanks guys!!

 

[Mike P.]

re: Triple 10" Sub Build

Can you post a link to the amp?

8 cu.ft. net tuned to 20 hz with 3 - 4 inch flared ports looks good assuming the amp has a high pass filter at 18 hz.

 

[jazzscreamer]

re: Triple 10" Sub Build

Mike,
I don't have specs on the amp. I am confident that everything will be good with filters, power handling, etc. As I was told, this amp was built for this setup. What would this look like with a 17hz tuning. I can't remember from my conversation with Chad if this was a 14 or 17hz tuning. Once I have the amp and have some more discussions with my buddy, I will post.
I have yet to receive the amp and Arsenal sub (I already own two of them). Should get them this week. I am really excited about this project!!!

 

[Mike P.]

re: Triple 10" Sub Build

Once you find out where the high pass filter is set we can determine the best tuning frequency. Keep us updated.

 

[jazzscreamer]

re: Triple 10" Sub Build

Well, I'm wondering if my 3 10" sub/amp setup is going to work. It's been awhile since I've heard from my buddy who is helping with this (selling me the extra sub and amp). So I want to make a plan "B" if this doesn't work out. I would use the 2 10" Arsenals I have, but I have no amp as of now. I've been thinking of getting a Behringer EP1500 since it will run a 2 ohm load. I'm not exactly sure what tuning freq. would be best for this type of setup. I did state earlier a 20hz tuning, but some people wanted to know what the HPF would be since this could change some things. I have no clue what this would be since I don't have an amp at the moment. Any other plans that you all may think could work, or any "I would do this if I were you" would help. I would like to keep the enclosure between 3- 3.5 cuft. per sub. I was even thinking of doing two separate enclosures (mostly for asthetics).

 

[Mike P.]

re: Triple 10" Sub Build

Are the Arsenals dual 2 ohm coils? Are you going to use a slot port or round ports?

 

[jazzscreamer]

re: Triple 10" Sub Build

dual 4ohm coils. Duh.........I can run them into a 4 ohm load together. I had these in my truck running a 2ohm load each. That's why that was stuck in my head. :duh:
I have a pair of 3" Precision ports I'm not using. I can also make a slot port if necessary. I just don't like slot ports cause they have been a pain in the butt to paint inside the port opening. Either would be fine.