Looking for 15" Sub for ~3.8cubes Ported ~25Hz < 1,000watts......

[5.3bowtie 10+ year member]

Hi All,

As title states I am looking for a 15" sub to go into my newly acquired Pontiac Vibe hatchback. I already have a 15" box made from a previous install that is roughly 3.8 cubes tuned to about 25Hz so I would like to use that. Also, would like to stay at or below 1,000watts of power so as to not tax the electrical system too much. Obviously the cheaper the better as well (budget is

Thanks for the help!

Click to read more...

 

[ABSOLUTEAUDIO 10+ year member]

incriminator audio Lethal injection 15 D2? PM if interested

 

[BOOMINGRANDPA 5,000+ posts]

cab ultra (been called best 2.5" coil on earth by peeps here) sundown sa, fu 750 or 1250 (nice sub), ab xfl, skar ddx.. lots of things to look at under $300 that IA ^ IS nice.. b2 is 15 750rms vendor here sells them just gave me some deadner lol.. http://gpcaraudio.com/b2-audio-is15-v3-dual-2-subwoofer/

 

[kr15 5,000+ posts]

Those new synergy 1k subs look nice. They are 199 plus ship

 

[kcr357 10+ year member]

I have an fu750, 85 plus shipping.

like new shape

 

[BOOMINGRANDPA 5,000+ posts]

I have an fu750, 85 plus shipping.like new shape

now that i have new amp if that was a 12 it'd would been gone before now..

 

[5.3bowtie 10+ year member]

Thanks for the reply guys! I will research the subs named and decide which would be the best fit. If anyone else has any they would recommend or one for sale please let me know!

 

[5.3bowtie 10+ year member]

So......I am currently leaning towards the B2 Audio IS but the recommended ported box volume is 6 cubes and I only have ~3.8 cubes to work with BEFORE sub displacement so more like ~3.6 cubes net. Why do they recommend such a large box? Only thing I can figure is the Qts is relatively higher which would drive the box volume up correct? I like the high Qms, xmax, Sd and Vd which would hopefully lead to good output at lower frequencies.....

Edit: Also found an Adire Brahma Mk1 with PSI recone for $250. Think I can get it a bit cheaper as it has been for sale for a while. Sound like a good deal to you guys? From the research I have done it looks like the Brahma is superior to the B2 in Qts, xmax and overall Vd which leads me to believe it is capable of moving a bit more air......

 

[BOOMINGRANDPA 5,000+ posts]

So......I am currently leaning towards the B2 Audio IS but the recommended ported box volume is 6 cubes and I only have ~3.8 cubes to work with BEFORE sub displacement so more like ~3.6 cubes net. Why do they recommend such a large box? Only thing I can figure is the Qts is relatively higher which would drive the box volume up correct? I like the high Qms, xmax, Sd and Vd which would hopefully lead to good output at lower frequencies.....
Edit: Also found an Adire Brahma Mk1 with PSI recone for $250. Think I can get it a bit cheaper as it has been for sale for a while. Sound like a good deal to you guys? From the research I have done it looks like the Brahma is superior to the B2 in Qts, xmax and overall Vd which leads me to believe it is capable of moving a bit more air......

it says compact ported 2.4 or so, so 3.6 cf ad should be b fine, but u can get fu 750 for less $ and they loud..

 

[BOOMINGRANDPA 5,000+ posts]

but depends some on how much power u running., if u run 1k-1500 then smaller box work well (spl box) if u running 500rms maybe go with sub that works in smaller box.. my ppi does 930rms @ 2 ohm 1162 @1.. skar vvx 15 takes 4cf ported, sundown e and and sa work in 3-4 cf, cheap too if u get bstock, cab ultra i'm sure takes 4cf or less and thats a very nice sub..

 

[Papermaker85 5,000+ posts]

i cna build you something off the HDC3 platform.. something ideal for that box and power. better than anything i see on the market

 

[5.3bowtie 10+ year member]

i cna build you something off the HDC3 platform.. something ideal for that box and power. better than anything i see on the market

PM coming your way......

 

[Slo_Ride 5,000+ posts]

25 hz? Why so low, you sure thats right?

 

[5.3bowtie 10+ year member]

25 hz? Why so low, you sure thats right?

Pretty sure based on multiple online calculators. It is a round port though so it can be cut down if needed. I would prefer to use it as is however.....I think I had a Treo SSi or the like in it previously which had an Fs in the high 20's so the box was tuned a few below that. Been a few years since I used it though so hard to remember.

Really looking for something that will move some air at lower frequencies....

 

[Jeffdachef 5,000+ posts]

Pretty sure based on multiple online calculators. It is a round port though so it can be cut down if needed. I would prefer to use it as is however.....I think I had a Treo SSi or the like in it previously which had an Fs in the high 20's so the box was tuned a few below that. Been a few years since I used it though so hard to remember.
Really looking for something that will move some air at lower frequencies....

I'd go with this sub for low frequencies. The box recommended is home theater, in a car environment with cabin gain that will change. They like low tuning and retain musicality as well.

https://www.parts-express.com/dayton-audio-um15-22-15-ultimax-dvc-subwoofer-2-ohms-per-coil--295-514