Ported bass reflex box for 2 rsd 12'' ???

[Morfijum]

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 90cm----Y 50cm----Z 42cm

1 inch is ----2.54 cm

as i calculated over the Rockford fosgate web site that is 144liter for two speaker's ~~~~ 5.1 cu.feet

And on the specification for the woofer they said it is good for ported box 1.8---3.6 cu.feet for one speaker

i think that 5.1 cu feet for 2 speaker will be fine,,,

what do you think?

and i have a problem with port's i can not decide what Fi (kind of port to use)

Should i use 2 ports x 5 inch(5x2.54= 12.7 cm )

OR one PORT of 16 cm = 6.3 inch

All 2 kind of port's are 13.8 cm long

and 75% of peoples here is saying to me to use bigger port and only one if i want to make box for db drag

So from your experience what do you say?

and how can i measure the HZ in my box


Ty so much

[Bfowler]

we would have to run your box in a software simulator like bass box. mine isnt installed on my computer right now, but im sure someone can mock it up for you

[Morfijum]

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

[Bfowler]

if you click on the unit of measure, you should be able to change it to metric depending on version

[stipud]

5.1 cuft should be good enough. I am confused about your ports though. You say they are 16cm or 12.7cm, and 13.8cm long? Are they round? Are they flared at the end?

[Morfijum]

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''

[stipud]

Is that the diameter inside the tube, or outside? We need the inside diameter.

[Morfijum]

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

[Morfijum]

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

[Morfijum]

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