Box tuning for a single SD Zv3.12 dual 1 ohm 2 cu ft ported box

[sim0nkpc]

Hi everyone,

For some reason my custom made sub box for my 1x sundown zv3 12" dual 2ohm from my local car audio installer sounded not as ok as I think it would. I suppose you can say it hits some bass notes (frequency) pretty well but some just unbearable or missing or can't be heard or weak.

For example: when i play lil wayne 6ft 7ft its good but when I play something like yg - who do you love. the intro onwards is just weak (shouldn't say weak but seems semi-missing or should i say not hitting maybe)

Anyhow my low bass setup:

skar 1500.1 setting 90hz LPF , phase 0, bass boost 0, subsonic about 32hz can't really tell as its extremely hard to tell where its at, gain set with multi meter at about 39 (1500 square root)

Sub - single SD 12 zv3 dual 2ohm

Most importantly the box:

17W x 14H x 22D MDF 0.75 - port 2" with port length18" L1 + 8.5"L2 should be at 32hz ( I did used the RE calculator but human error could happen) I don't know why this is happening but I did try to put the subs in my 1.75cu box it sounded boomier but bass were not that clean) but its still better than missing or unable to hear.

Note : car BMW e60 520i 2003 with ski hole cut

should i just have another box build?

By the way i'm looking for best in both world SPL & SQ.

your valuable inputs is very much appreciated

SImon

[sim0nkpc]

sorry meant to post this under subwoofer/enclosure