_S7V7N_'s box

[talnlnky]

so... a few issues, kicker didn't really give much data about the Cvr12... there is a dvc2ohm & dvc4ohm unit... they gave specs, but didn't tell me how they got those specs, I don't know if those are with the coils measured separately, in series, or parallel wired (it makes a difference)... but it doesn't really matter too much anyways because they only gave me about 5 useful specs, and realistically I want more like 8-15. I can have the program calculate some of the others, but I had to guess on the SD (cone area) and so my graphs should be fairly close, but they may be off.

also... you didn't tell me what you wanted... so the default is a street beater setup.

To be honest, looking at the QTS, it's not really designed to be in ported boxes, and if you were to put it in one, it might sound weird. The group delay is weird, normally the group delay will spike, and it'll be this weird looking bell curve type line... this one spikes... then slowly rolls off. Luckily, it doesn't spike too high, so this might sound relatively tight, but there is a 5dB bump in the frequency response around 50hz... which sure won't help with giving you a tight sound... and that is with the box tuned to 33hz, I can only imagine how big that peak would be if you tuned at 40hz like may store bought ported boxes are... but then again, kicker is kind of notorious for having big peaks in the response in the 40-60hz range. It gives the illusion that the sub is a lot louder than it really is.


If you went ported, I'd recommend using dual 4" aeroports (the round ones with flares on both ends), that or about 25sq in of port area.