art325i ili zx4

[MarjanMilosevic]

Casper, zvucnici imaju svoje specifikacije dge je navedena povrsina membrane.
Taj se parametar oznacava sa Sd. I nemam ja potrebe tu bilo sta izracunavati.
Otvori specifikacije neke osmice i neke 15 tice pa ces videti sam.
Matematika tipa Pix radius na kvadrat tu ne vazi jer je membrana konusna i povrsina je veca od radiusa zvucnika na kvadrat puta Pi.

Tako da molim te uzdrzi se podcenjivackih komentara, jer ja tvoju inteligenciju ne vrdjam.

Istini za volju, ja jesam u mom komentaru pobrkao brojeve povrsine 12tice i 15tice.
Tako da nisi u krivu :-)

Sd Effective driver radiating area.

Given in sq cm or sq inches. Basically means how much area the cone has to move air with. Larger cones will have bigger Sd’s and smaller cones will have smaller Sd’s. An average Sd for an 18” cone would be 1150 sq cm and a 15” driver would have an average Sd of around 890 sq cm. But the depth of the cone also has to be taken into account. A deeper cone will give you a higher Sd for the same diameter. So that’s why you see different Sd’s for same size drivers. The ones with the higher Sd’s have deeper cones or have less surround material or both.