audio set-up for beginners [continued]

[D3nb3r]

glad to know you're keen in DIY. you mean it can go lower in frequency?

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Kailangan mag DIY sir dahil the nearest audio installer sa area ko is 300km away hehehe.
What I mean po is I'll buy a sub na lang and build my own enclosure rather than buy a powered underseat sub.
Underseat sub can only do so much. Yung kicker hide away underseat sub is around 16k, the Focal IBus kahit yung gen 1 is 20k above. DLS is going to bring in their own underseat sub but dont know when and magkano price. With that amount of money I could buy a JL 10tw3 shallow sub at around 17k, wider cone surface, longer excursion and more powerful kahit mga 0.34cu ft lang enclosure ko makaka produce ako ng mga 56hz at 0 db. Yun nga lang kailangan pa amp.
I would be more than happy if I can produce kahit 50Hz dahil as per the graph below from WinISD app, mag roll-off ako at around 45hz.

Fingers cross na tama input ko ng T/S parameters.
This app also helps me decide if worth ba ang 17k na JL or ok na ang 5k na Infinity reference