How does this look?

[DaveCan]

I think I may stick with these and order across the border anyways..
Eminence EMI-1550 15" High Efficiency Sub from Madisound Kind of along the lines of what I"m wanting.. Any thoughts on these?

[bjorno]

Originally Posted by DaveCan

I think I may stick with these and order across the border anyways..
Eminence EMI-1550 15" High Efficiency Sub from Madisound Kind of along the lines of what I"m wanting.. Any thoughts on these?

Hi,

FYI, The data given at -isound for EMI-1550 is inconsistent?

b

[Cokewithlime]

Originally Posted by DaveCan

That solen kit and the woofer mentioned is alu coned.. I had thought surely there must be a really good sq closed alignment design using a paper coned based woofer still? And no I didn't mean Shirley lol.. Thanks for all the help and ideas...

I don't know where you got the info that the 830845 cone in Al - that is completely incorrect, the cone for that driver is Nomex

BTW - the Eminence EMI-1550 does not model very well as a sealed sub - this driver is targeted and more suited to PA type work or bass bin horn.

If you are looking for a 15" home sub - consider the Dayton DVC385-88 15" DVC Series Subwoofer from Parts Express - I've done many orders from PE and even with surface postal delivery it is usually less than a week to receive the package.

[DaveCan]

Oops, I think I confused it with a Dayton driver I was looking at or something that had the other cone.. I may be in need of a good nights sleep lol, or just burnin out etc..

Thanks for the link on that DVC sub.... I'm not heart set on a 15'' just want a really good buy with the best sq etc...

[Cokewithlime]

If what you are looking for is a sub mainly for music and something that will probably integrate very well with your existing mains then I would still recommend the Peerless 12" over the 15" DVC sub.

I have had the Peerless 830500 + matching 830548 passive radiator in a 2ft^3 (35l) enclosure driven with a 500W plate amp for many years - all the the Peerless XLS and XXLS drivers have very low distortion plus have excellent transient response(compared to most 15" subs)

If you would really like to actually hear what a live drum kit, acoustic bass and the lower registers of a concert piano sounds like then you will not find many better choices. (and you can buy it in Canada )

[DaveCan]

Thanks for all your help Coke. I think I may go for that Peerless 830845 sub you linked. I already have a sub amp that I think is better than the solen kit so I can save money there etc.. I tried a calculator and entered these calculations, wondering if I did it right and what you may think?

Peerless 830845

Sealed Box
Qts - 0.45
Vas- 5.7 ft3
Fs- 21.5 hz
Qtc- 0.707
Vb- 3.882ft3
F3- 33.78 Hz

Thinking maybe I could just build a 4ft3 internal volume sealed enclosure?

[Cokewithlime]

DaveCan - I just did a quick model in WinISD - 4 ft^3 looks pretty good, if you add about +3db of EQ @ 28hz and then a HPF @ 20Hz you should get about 108db with an F3 of 34Hz and a F10 of 22Hz and still stay within xmax limits

On the other hand, Solen's kit enclosure of 2.6 cubic feet (74L) actually looks like the best trade off size for power handling + LF extension with control of xmax limits

[DaveCan]

Sounds good (well hopefully lol).. I saw with the solen kit they add 60% of fill I think, and I thought I'd try to just go bigger with no stuffing, and shoot for a 0.707 box for best sq alternative? I have the space to build up to a 10-15 ft3 box so size isn't an issue, but I guess there is good reason that they went with the 2.6 box as you pointed out..

[Cokewithlime]

For most subs that I build, I rarely stuff them - stuffing just tends to muffle the attack(transients) which is OK in a HT type configuration but for music it doesn't really work out.

The one thing I would suggest is to get some eggcrate bed topper foam from WalMart and spray glue it on to the back wall opposite of the driver. You can add more to the other internal surfaces but I find just that one piece at that location is all that is needed to tame internal cabinet harmonics.

[bjorno]

Originally Posted by DaveCan

..I have the space to build up to a 10-15 ft3 box so size isn't an issue,..

Hi,

FYI, A 6.1 cu ft T-TQWT using the Peerless 830845 is too within the volume range.

b