audio set-up for beginners [continued]

[jhnkvn]

Tanong ko lang pano ba gumagana or pano ba nakukuha tong bass na "gumagapang" daw. I just want to disprove some claims ng pinsan ko na I need powerful amp and sub para daw makuha to. Pano ba to? Can I achieve it with yun normal na included box sa mga packages ng shops? I have JBL GT5-12 Sub with ported enclosure.

Easy. You simply need a high volume level on very low frequencies (many tune theirs to be from 38hz to 34hz).

Contrary to popular opinion, sealed can also make gapang. It's just less efficient in doing so that's why people love ported boxes. Because at their tuned frequency, a ported box gives you free additional decibels.. and if you've read what I posted in KAC.. you should know how important decibels are. It's like jumping from a 300W amp to a 1000W amplifier.

Now is to make the box.. efficient in doing so. So you need to... make it large. The larger you go, the more efficient you are. In other words, if you have a 1 cu.ft ported box and you hit your maximum excursion (one-way cone travel) at 700W. If you redesign that box to 2cu.ft, you'd probably just need around 300W to hit the same amount of cone travel.

Third is the subwoofer design. The higher the one-way linear cone travel or xmax. The longer your "throw" is and the more output you get. This is generally why the JL W7 costs 30,000php while the JL W3 costs 8,000php.

If you're on a budget, the most affordable and easiest way to get a high decibel output is... to get ENOUGH power... and get a lot of cheap BIG expensive subwoofers in a BIG ported box.

For your current setup, I won't really suggest trying to show off your sub's gapang. It'll probably overtax your amplifier in this case and you don't want that ;) You WILL have gapang.. but you won't have excessive amount of it.