Curtis96olds

what i may do, instead of finding a single 12... is do a few electrical upgrades and get a crescendo bc2k to run on the sa-12's, that way i can overcome the smaller box by running more power, ive pretty my came to the conclusion that im not doing anything wrong, its just not as loud as i would of expected.

i would love to do that, but i need to be able to take the box out from time to time

would i have been better off to go with lower port area in favor or a larger box? because i litereally cant build a bigger box to fit into the trunk, i had to take trim panels off to get this one to fit to begin with. if i went with a port thats 3.5" wide and 25" long, it would still give me a 32hz tuning but i would be up to 3.5cuft while still being within acceptable port area, would that make that much of a difference? i havent tried firing to the rear yet, but like you said it would have to have enough air space around to box to get back into the cabin, in which my case wouldnt be enough, i only have about 3" on each side of the box and the box goes to the top of the opening, so i figured firing forward would give me better airflow into the cabin

thats just it it, there is no one in my area into bass, i live in northern new hampshire... we have forest.. and thats it lol, i dont even get cell service at my house. thats why i turned to you guys

all connections to the amp are solid, good grounds, DMM reads 12.53 volts at battery and 12.52 volts at amp (with car off) box is 30x24x14 with a 4"x12.5" port that is 35" long, gives me a tuning of 32hz, box sounds looks good to me, like i said, im stumped.

i just took the subs out to check the wiring, i triple checked it, and everything was wired correct, but just to be sure... instead of using jumper wires from coil to coil like i had... i did an individual run of wire for each coil down to the + and - bolts, then had my dad double check the wiring as well. put it all back in, turned it on, and it sounded the same. so im not sure where to go from here, like i said, maybe i was just expecting too much? i dunno, but even on low notes the subs barely move. an example is the song "betcha cant do it like me" by D4L, the low note on that song really got my BTL moving, and that box was tuned to 32hz as well, so i played that song on the sa-12's and they barely moved.

hmm i guess i will pull them out tomorrow then, if its not wired wrong, where do i go from here? because like i said, ive had smaller systems and they were alot louder then this, hell my 2 10" sony xplodes from my first system would of gives these a run for there money they way they are playing right now.

i havent yet, no, to pull the subs i have to get the box out of the trunk, which is a PITA, even if it was wired wrong wouldnt the polarity of one be reveresed? i would be able to see that by looking at the subs, and they are moving in unison, not to mention my DMM says they are wired to 1.3 ohms, i dont see how it can be wired wrong? i attached the positives from boths subs to a bolt, and the negatives from both subs to another bolt, and then ran wire from the bolts to the amp.

i did some research and i guess my H/U doesnt clip until you max the volume out and do +15 on the bass, so i reset my gains for max volume (35) and been riding around for 2 days like this... now the clipping indicator is barely blinking...never solid. yet after about 10 mins of music i start to smell coil and the dustcaps are hot. i feel these subs have more in them then this... i know im tuned low which would cause the subs to move less listening to lower music.. but these subs BARELY move, even on low notes...i mean it does get moderatly loud...but my old single 15 AQsdc2.5 got way louder then these and that was off half the power and a shitty box.

i know, i wont have time to pull out the subs until the weekend, but until then, im trying everything else i can think of that could be wrong.

well i did what was suggested earlier... set my gains to a higher H/U volume... i decided to make 32 out of 35 my "max" and turned up the gain until the clipping light started blinking (not solid) and it is louder, but not what i feel it should be, but atleast the gain isnt maxed out now. i dunno maybe im just used to how loud my BTL 18 was, and i was expecting too much out of these subs. (BTL was run off the same 1200D amp)

just checked the ohm load, its reading 1.3 ohms, which means its wired right.

very unlikely, i put all the positives together and all the negatives together, and its 2 d4 subs, so thats definatly 1ohm. is there anyway i can check my ohm load without taking the subs out of the box? just put the dmm on the positive and negative of the amp terminals? or will that not work.

dust caps are still cold, the weird thing is, with this same headunit, im my last vehicle, i had the volume set to 25/35, and only had to turn the gain up to about 1/4. same amp, same headunit, same everything, only thing different is the subs and box. so your saying i should re-adjust my gains so my "max" volume on my h/u is like 35? that way my gain doesnt have to be up so high? cause right now my gain doesnt go high enough to maximize the signal at 25/35 volume. but i still think there is another problem here somewhere, but i will try that tomorrow and see what that gets me

i have the LPF filter on the amp turned all the way up (200hz) that way i just set it to 80hz on my H/U and its more accurate, and right now i have my SSF all the way down (20hz) just for testing, sub level on the deck is set to zero (flat) it can go to -15 or +15 but ive always kept it at zero in all my systems and just left it there forever. this is my second time buying the alpine cde-123 H/U ive used it in my past 3 systems, so i know pretty much what i can do, so im 100% sure i have the H/U settings correct