PB10 Clone - Advice requested

[wildfire99]

OK, so I needed a smaller, really cheap (emphasis cheap) sub for the computer, and I saw a Dayton Titanic MkIII 10" driver for half price on the'bay. I thought to myself, hey, why don't I grab this and a 300w BASH amp and make a PB10 clone?

Unfortunately my auction skills seem to surpass my box modelling skills, and I now realize this driver is no substitute for the PB10-NSD driver. No worries though, I don't need 105db output, I thought (but I would like to get the thing way down low, like a 20hz tuning, for reasonable-volume movie watching/monitoring). At least, until I tried to model something.

Are there any good designs or ideas for a ported 10" sub, either boxed or tubed? I can't seem to get a good fit on anything with this driver, as it wants a really small box, but then you can't get a low tuning on it due to port length, or risk having a huge 'saddle' in the output. I previously used a 10" car sub in a sealed 0.75ft3 box, and it sounded great, but there was absolutely no useable output below 30hz, which is noticeable for films. Should I perhaps just sell this titanic off and start again with a bigger driver, or does anyone think I can make this work?

[SteveCallas]

How's about an Ascendant Audio 10" Assassin in 90 effective liters with a 4" port that is 19" long being fed with 300 watts and a 20hz highpass. Tuning comes in ~22hz, probably a bit lower in real life, and you should be solid to 20hz. Is that too big?

Hmm, unless I'm making a mistake somewhere, that looks like a pretty damn fine sub for using a 10" driver.

[Exocer]

It looks like he already has the Titanic MkIII 10" driver. I'd keep that instead of selling it to get an Assasin 10" driver.

[SteveCallas]

Well like wildfire said, it's really hard to model a smooth response with the Titanic without using an extremely small enclosure - which prohibits the use of proper porting. The Assassin actually gives more output over the whole range too.

[Exocer]

I should've mentioned I'd also go sealed...eliminating the problem at hand here. Sorry.
In that case... its obvious the titanic should be sold off. The Assasin 10" does look good. However I nominate the Tc-1000 10" SVC. 200 liters tuned to 20hz with about 450 watts behind it...if you can afford the space. wouln't really be a Pb-10 clone, more like a Pb-10 killer. 6" port diameter, 22" long. HP around 19hz.

[derekbannatyne]

I should've mentioned I'd also go sealed...eliminating the problem at hand here. Sorry.
In that case... its obvious the titanic should be sold off. The Assasin 10" does look good. However I nominate the Tc-1000 10" SVC. 200 liters tuned to 20hz with about 450 watts behind it...if you can afford the space. wouln't really be a Pb-10 clone, more like a Pb-10 killer. 6" port diameter, 22" long. HP around 19hz.

That seems really big for a 10", did you mean 100L? I modeled that driver in Unibox and 100L tuned to 19hz with 300w looks pretty good.

[Exocer]

It slips my mind... :E 100L does look good though with a 22" long 4" port

Edit: I only suggest the Tc-1000 because I'd think the NSD driver has more Xmax than the Assasin drivers. Steve, wouldn't you agree?

[SteveCallas]

Steve, wouldn't you agree?

It's the better driver no doubt, but with the mentioned intent:

OK, so I needed a smaller, really cheap (emphasis cheap) sub for the computer

I think $175 is a bit much for a computer sub driver. The Assassin is only $70. Also, can you comfortably fit a 22" long port in a 100 liter enclosure with enough clearance from walls? That would be cutting it really close.

For $70, the Assassin looks hard to beat for this application.

[Exocer]

Personally I dont think it'd be cutting it too close if the enclosure were rectangular, say 16"Wx16"Hx26" deep. Also since he'll be selling off the Titanic 10" driver I assumed that would offset the price of the Tc-1000 a bit. I do see your method of thinking though...16"x16"x26" isn't smaller than the Pb-10.

[WillyD]

Actually, the Dayton Ref. 10" HF driver in a 65liter enclosure, tuned to 21-22Hz, looks good. Not the same value as the AA driver though.

http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=295-460

[wildfire99]

Thank you all for the suggestions. That TC-1000 driver is indeed impressive, and I have a bad feeling I will end up getting one and pairing it with a 300 or 500w BASH amp in the end (I'm a total sucker for More Power, and the extra $100 amortized over the life of the sub isn't that much; I am still about *this much* away from getting a b-stock SVS and calling it a day). Maybe it's a good time to go tubed also, to cut down on floor space.

I am also pondering just taking the sub budget and sinking it into simply getting two good full-range stereo mains. Good stereo movies are still better than bad surround movies. The high-end Adire stuff springs to mind, but my god--they are expensive. Choices, choices.

[Exocer]

There are many good DIY designs here in the missions accomplished section of this forum. I suggest you check there first. You seem like a good candidate for the TMWW's