soo this how i made it, it is only the first step i have done,, after this i know what to do,,but just cause noone has replied on my question about the port ,i made decision by my self and i will place 2 x 12 cm diameter and 13.8 cm long ports.......soo ty anyway

Soo is it good for two rsd's to use one port of 16cm inside diameter?

that is inside diameter,,and the price for this port on the picture is here 450 dinara that is 5 euro here,,,

port's are rounded and i think about two different types
1. Fi = 12cm
2. Fi = 16cm

This on the picture Fi = 12cm and he is 13.8 cm long

should i place these two or one of 16 cm ,the friends told that fo more DB it is better one of 16 cm and for better sound two of 12''

i have bass box installed and installation version,,,,but it is little hard to understand the thing of measure cause it is different that we use in my country i can learn all and i tryed but i went round and o'round and didnt went anywhere with trying lol,,,this phorum is my only hope llol ;)

Ok hello to everyone My name is Marko Petrov from Serbia I have registered today on this phorum, Soo this is my problem,,, I have bought two of Phoenix Gold RSd12d I want to make Bass reflex ported box for my car, I have Mercedes A160 w168 as i measured the limits for the box i can place there is X ...