boombastic sub size 15 help

[ReccaH]

Kicker Solobaric L7 on a ported box is also good.

[ianne]

Any comments ba with crystal X2? 1600rms daw eh..im thinking of having 1 15'in pasok na box size should not exceed 54x17x16 kasi i already have amp rack sayang if babaguhin pa.

[busy road]

Any comments ba with crystal X2? 1600rms daw eh..im thinking of having 1 15'in pasok na box size should not exceed 54x17x16 kasi i already have amp rack sayang if babaguhin pa.

If you have the following parameters (usually given by the manufacturer), I can help you decide for the optimum box volume (either closed or ported):
Fs -free-air resonance
Qt -total magnification factor
Vas- equivalent air volume compliance

[ianne]

Fs-23.5hz Qts-0.52 Vas-4.2 ported daw sir required for spl kasi sub na to. have knowledge of rear horn type na box?

[busy road]

Fs-23.5hz Qts-0.52 Vas-4.2 ported daw sir required for spl kasi sub na to. have knowledge of rear horn type na box?

Based on the above parameters, it turned out the following:
1. For optimum ported box, volume of 9.644 cu.ft. will have a box resonance frequency of 17.78 down to 15.26, which you can't almost hear it anymore. As a compromise, try 4.2 cu.ft, which will give you a resonance frequency of 23.5 hz. If you don't have the instrument to test this frequency, it will be hard for you to decide for the port dimension.

2. For optimum closed box, volume of 4.95 cu.ft. will give you an optimum box resonance frequency of 31.95 hz. (I preferred this one).
If you want a harder bass, go for 2.177 cu.ft with a resonance frequency of 40.22 hz.

Volume is the net volume. Approximately add an additional 10% volume to compensate the volume covered by your drivers.

Horn type box are designed for external use like open space. I don't advise this for car application.

[ianne]

ok,sir medyo mahina po ako sa frequency(hz) any suggestion kung san makakatulong sakin sa pag gawa ng box or shop? may setup na po kasi ako and gusto ko lang yung boy lang ng subs ang mabago at wag na amp rack,wala pa po kasing 1month setup ko and now lang talaga ako naka pagdecide. i'll post pics some other time so you can give me guys suggestion on what i can do.tnx po pala sa oras

[pepengtom]

meron nagbebenta ng dd3515d with ported box sa kotseaudioclub.com. look for paul ferrer. 20k ata niya benta. gawa ni mickey yung box.

naka audi ako ng 3512d + t1000 lakas din!!

[ianne]

pepengtom-have you auditioned mmats P3 15'? sin lakas kaya nun?my na auditioned ako DD but ay dont know the model pero malakas din pwede credit card?hehe