Re: Απάντηση: 12' Sub σε κουτί 38 λίτρων
Linkwitz transformation.
Θελεις εναν driver με μεγαλη δυνατοτητα προσληψης ισχυος (εαν θες να πας και χαμηλα και σε κλειστο κουτι μπορει να "πεταξεις" πολλα βατ) και ενα δυνατο ενισχυτη. Τα λεει αναλυτικοτατα, ο ΕΣΠ εδω:
http://sound.westhost.com/linkwitz-transform.htm
Επισεις το 12αρι σ αυτη την περιπτωση ειναι ΠΟΛΥ προτειμοτερο απο το 10....
" * Look for a driver with a BIG linear Xmax. The driver should have a one-way Xmax of over 12 mm (0.5").
* Look for a driver that is 300 mm (12 inches) or bigger. Remember, that producing low frequencies is all about displacing large quantities of air.
* The driver should have a high power handling capability, in my opinion at least 300 watts RMS. The driver will need a lot of power to hit those low frequencies.
* The driver should also have a low Fs. It should be the lowest you can find. The reason for this is because you want the transform to use as little gain as possible to reach the lower frequencies. The lower the Fs of your driver, the lower the Fc of the closed box system will be and the lower overall gain the circuit needs to apply.
* And finally the driver should have a high sensitivity rating, unless you have a really big amp to power it. The higher the efficiency rating of the driver is, the less power it will take to reach those insanely low frequencies. If you have a driver that is 89 dB sensitivity and a driver that is 92 dB sensitivity, the 92 dB driver will require half as much power as the 89 dB unit, for the same sound pressure level."
Το καλυτερο μπασο που ακουσα σε χαιενταδικα ηχεια (εννοειται βεβαια ΕΞΑΙΡΟΥΝΤΑΙ οι μπασοκορνες
) , ηταν 2 αλουμινενια 10αρια σε κλειστη καμπινα, με δικο του ενισχυτικο module το καθενα και με διορθωση βεβαια ..
