Pro Audio DIY Subwoofer for home?

[radal]

Hi guys,

As the title says I would like to try a DIY subwoofer using pro audio drivers this would be for mainly home audio and movies occasionally.

Why pro audio drivers? because its either car audio or pro audio where I'm from not much if any places selling DIY home audio drivers.

I would like bass from around 35hz (30hz if possible) to the usual 80-100hz to crossover to my mains which are BTW all pro audio drivers.

I'm currently lookin at the Faital Pro 15HP1010 a 15" woofer with specs as per link: FaitalPRO | LF Loudspeakers | 15HP1010 I'm really looking at this driver because i'm gettin them for a good price.

With my very limited knowledge I have simulated this driver in Winisd in a bass reflex box and looks flatish to 40hz and goes down to 35hz -3db using a tuning frequency of 38hz and volume of 3.5 cu. ft. But in reality? i dont know!

Would this work for my desired frequency range? (feel free to model it in your favourite box design software 🙂) How might it sound? anyone have experience doing a sub like this?

Also would two those 15's be overkill? My mains are an MTM configuration using two 8" 8FE200 woofers (95 db each) and 1" compression driver HF100 (108db) all faitail pro drivers.

Thanks in advance

 

[nigelwright7557]

For home use one 15 incher would be fine.

Fane do a good range of speakers.
I have often used Fane drivers and regretted changing to another supplier on the one occasion I did.
I get mine from Blue Aran - Professional Sound and Lighting
They are about the cheapest Fane supplier I could find and I have always had excellent service from them.

 

[chris661]

That Faital Pro driver is rather nice. You could probably go for a slightly larger cabinet with a 30Hz tuning if that's how low you want to go.

2x15" a side going to 30Hz would easily keep up with your MTMs. 1x15" a side might not be enough if you want to eek out every last bit of volume.

Chris

 

[radal]

thanks guys ...4 15's 😱 I think i'll try 2 first (1 per side) and I was thinking if I dont get the lower extension i'm looking for I could build something to pick up where the 15's leave off. something to cover 15-35hz especially for movies

 

[markgolf]

The BMS 18n862 is probably one of the best subwoofer drivers available. Just go look at the test results at data-bass.com . for a pro driver it can go low and loud. Pricey though at 700+ dollars
Mark

 

[mpa]

I use 4x B&C 15BG100 in sealed boxes which are very nice! In my room they reach 25Hz comfortably.

 

[radal]

Thanks, some good reviews on that b&c 15GB100 driver! I'll see if that model is available locally might be a little pricey though

 

[GM]

What is available? IME, all decent prosound drivers are expensive.

GM

 

[chris661]

The Faital Pro driver linked above would work in a small sealed box, but would need considerable EQ to bring the low end back up, given the low Qts and relatively high Fs for home use.

Remember that sealed boxes lose a lot of SPL compared to ported ones.
With a high-efficiency dual-8" MTM, I'm expecting fairly loud SPLs. In that case, 4x 15" sealed would do nicely, with lots of flexibility for playing with room placement as Geddes would recommend.

Chris

 

[radal]

Using the drivers I linked above I am now considering two 15's in a 4.5 cu. ft. ported box tuned to 35hz, box size isn't an issue so I would prefer ported instead of sealed if it means I would lose spl on lower extension going sealed. And if needed I would add 2 more 15's later on when when funds permit.

I know with horns extension lowers when used in multiples but does the same happen with bass reflex boxes?

 

[scholl]

B&C 18SP100 looks good too

 

[GM]

I know with horns extension lowers when used in multiples but does the same happen with bass reflex boxes?

A relatively minor amount for every doubling of cabs.

GM

 

[chris661]

I'd've thought the Helmholtz resonance would remain constant - you're not changing any of the related parameters by putting another box next to it.

Hornresp does seem to suggest a given ported design will have a lower tuning frequency (and f3) when used in multiples, though.

Chris

 

[GM]

As I understand it, as the speaker 'stack' increases in area its 'baffle' end correction increases along with the driver coupling and since the vent is a small acoustically driven piston 'driver', it's contributing to this increased total acoustic loading over some portion of the baffle's BW, causing some acoustic band-pass [horn] loading of the vent, making it a bit more efficient [acoustically longer].

GM

 

[umut1001]

Hi.I found quad industrial subwoofers in my country.I want to build 2 towers with them.Model no d-445 year 2008 and 17. Week. Can i find Ts parameters of them ? Are they good for home use ?

 

[umut1001]

And Front side.They are used in good condition and only 2pcs available.Dual coil 2x8 ohms.400w

 

[GM]

Most likely you will have to measure them and what little I found for the brand implies cheap mobile audio, so MAYBE OK for home 'sub', but with no specs.........

GM

 

[umut1001]

Hi.Here is data of speaker made with these drivers.
https://static1.squarespace.com/sta...69608/1447400973010/QI+Brochure+2014+0521.pdf

It seems driver is "Q Suba " s driver.Please check.

 

[GM]

All there is of use is a sealed box size you can build.

GM