Which amp and 12" driver for ported 4 cu. ft. box? (1 Viewer)

[Jim A. Banville]

I'm considering selling my Velodyne CT-120 and building a DIY sub with a 12" woofer and a nice plate amp. I'm looking at the Dayton Titantic II and Adire Shiva woofers, and the 250 amps at Parts Express and Adire Audio (they look identical). I have room for a 24" x 24" x 15" box, but not a tall sonotube. Opinions?

 

[Patrick Sun]

Go buy one of these original SVS subs (keep an eye open and look in hardware area) and tune it to around 22Hz-25Hz.

 

[Jim A. Banville]

Go buy one of these original SVS subs (keep an eye open and look in hardware area) and tune it to around 22Hz-25Hz.

You mean the old drivers that people are selling as they upgrade to newer drivers? The older SVS driver is better than the others I mentioned?

thanks

Jim

 

[Ryan Schnacke]

Not better, just cheaper. The new SVS driver is probably close to the Shiva in output. And its got 30% more than the old driver. So if you can get the old driver for $40 that's about 3/4 of the performance for about 1/3 of the price vs the Shiva. Two of these would likely edge out even the Titanic MK2 for about 1/2 the price.

 

[Jim A. Banville]

Okay, how would you all "rate" the drivers mentioned in this thread?

1- new SVS

2- Shiva

3- old SVS

4- Titantic

 

[Jeffrey Noel]

Jim, don't forget the Dayton 12" DVC. It's alot like the Shiva and I sure like the output from mine! LOUD!!

 

[Rudy H]

New Titanic MK2

12inch Dayton DVC

Shiva

New SVS

Old SVS

Old 12inch Titanic (very good music woofer, but very easy to bottom with the bigger plate amps. I only recommend 150watts, no more).

 

[Brian Bunge]

Jim,

How about the Dayton DVC 12" tuned to 20Hz? Looks like you'd get about 107-108dB at 20Hz, anechoic. You barely go past Xmax by 1mm around low 30's, high 20's.

Brian

 

[Ryan Schnacke]

I agree with Brian's recommendation. Assuming a box volume somewhere between 3.5 and 4ft^3 the DVC looks nice tuned to 20Hz. With a 4 inch diameter port I get a port length of 18 to 21 inches depending on actual enclosure volume. That's near the limit of what you could fit in a 24 x 24 x 15 box without any bends in the port.

 

[Brian Bunge]

Unibox gives me a port length of 18" for a 4" diameter port with two flared ends in the 4ft^3 enclosure.

Brian