I am wondering if I put two (2) 830500 in the same enclosure (sealed), and double the volume specified by DST will be fair for moderate listening levels. Two drivers means an overall 3dB gain, and at 25Hz the subwoofer is predicted to produce ~103dB using a 60L enclosure and the two identical drivers (as said).
I have attempted single woofer sealed, and i wasnt very happy with the results. I have tried vented, but even the specifications by peerless and calculations I have made, the subwoofer still doesn't sound up to scratch with what I want. I like the tight feel of bass, especially as it blends in well with my style of music in the lower mid section, but I also want to have the headroom for audible bass during movie time, not exuberant SPL... but moderate.
Maximum SPL is estimated at 115dB. The vented simulation for two drivers in one enclosure is quite impressive from a technical point of view, but it would be too complicated for me to build such an enclosure accurately.
I have attempted single woofer sealed, and i wasnt very happy with the results. I have tried vented, but even the specifications by peerless and calculations I have made, the subwoofer still doesn't sound up to scratch with what I want. I like the tight feel of bass, especially as it blends in well with my style of music in the lower mid section, but I also want to have the headroom for audible bass during movie time, not exuberant SPL... but moderate.
Maximum SPL is estimated at 115dB. The vented simulation for two drivers in one enclosure is quite impressive from a technical point of view, but it would be too complicated for me to build such an enclosure accurately.
Placing two drivers in a single enclosure is in many ways "OK"- but it gives you more to worry about.
I'd suggest two enclosures, and here's why:
-smaller spans of cabinet to worry about for bracing
-smaller internal measurements pushes the first internal standing wave up in frequency
-subs in different areas of the room start to act as a line source, and excite room modes more evenly
just my two cents, and why you might want to consider two boxes instead of two in one. If you really want two in one, then my suggestion is just to pay attention to the issues I mentioned.
Joe
I'd suggest two enclosures, and here's why:
-smaller spans of cabinet to worry about for bracing
-smaller internal measurements pushes the first internal standing wave up in frequency
-subs in different areas of the room start to act as a line source, and excite room modes more evenly
just my two cents, and why you might want to consider two boxes instead of two in one. If you really want two in one, then my suggestion is just to pay attention to the issues I mentioned.
Joe
You could try a Push-Pull enclosure, might be very interesting!
Also, 60L is quite small, so you could try Isobaric with that 60L box to flatten the frequency response, but then it's a bit more power hungry.
You could even do a vented push-pull or vented isobaric if you are a bit crazy.
Also, 60L is quite small, so you could try Isobaric with that 60L box to flatten the frequency response, but then it's a bit more power hungry.
You could even do a vented push-pull or vented isobaric if you are a bit crazy.
Do a google search for the site for Bamberg Engineering and Sound Labs, owned by Phil Bamberg. He makes subs/ offers designs using single and two Peerless drivers.
George
George
Here's the URL for Phil's site:
http://www.bamberglab.com/
He had a nice looking sub design using the XLS drivers and a passive radiator.
http://www.bamberglab.com/
He had a nice looking sub design using the XLS drivers and a passive radiator.
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