137.4 off a single 12

[HunterJohnson]

I'm just saying the peak is high. I'd like to be under 40, I know the box isn't tuned to 41hz

...every car is different. i peak at 45. some cars peak at 55. some at 35.

yeah but generally if you tune your box lower you will decrease your peak

[Guest]

I'm just saying the peak is high. I'd like to be under 40, I know the box isn't tuned to 41hz

...every car is different. i peak at 45. some cars peak at 55. some at 35.

yeah but generally if you tune your box lower you will decrease your peak

yeah then your score will also decrease. think man

[Zapanater]

I'm impressed. Better than me and my two 10" visoniks when I first got into the game. Keep it up man! You've come to the right place for advice.

[HunterJohnson]

I'm just saying the peak is high. I'd like to be under 40, I know the box isn't tuned to 41hz

...every car is different. i peak at 45. some cars peak at 55. some at 35.

yeah but generally if you tune your box lower you will decrease your peak

yeah then your score will also decrease. think man

yeah thats true from what I've tested. lol I kinda forgot this is an how to gain SPL thread...

I'm not an spl guy but when i did have an alpine type x 12 it peaked at 46hz 139.8db's box was tuned to 36hz. That was in a hatch

Now im 143.something at 39hz 2 sa-12's...I need more port

[WadeTustian]

will sound deadening the hatch/ trunk area make a big difference??? and also maybe a new box soon with maybe some aero ports rather then a slot

[BassHead1990]

For hatchback I like sub up port up.

[B4SS H3ADD]

for hatch i also like subs up, maybe go with a 6" aero port, tuned higher than 35 for more spl

[alaskanzx5]

ive got a focus zx5 and there are a few people on here with the zx3, i had a single rf t2d412 wired at 1ohm running on an old t1500.1bd did a 141.xx sub up port up but that was in a 3.5 cuft box prefab round ports. then in a box built according to the specs/design in the manual that came with the sub (2 cuft ) i did gained about .2db port and sub facing back lost a little facing up and more facing foward. for me it seems like the smaller boxes do better facing back and the bigger boxes do better facing up. oh and those scores where at 46-48hz on the dash sealed. prefab box i dont know the tuning for but the built box was 40hz if i remember right.

also had 2 t2 12"s in a prefab off the t1500.1bd port back subs back do a 146 at 51 hz but a better built box ( 4cuft after discplacement 16 sq in of port per cuft ) tuned to 45hz like the prefab facing back did a 144.x 51 hz hopefully getting it metered agian today. turned the box sub up port up and it sound/feels a good amount louder gets the car flexing more but wont know for sure till its metered. besides the first prefab box all my boxes have been slot port.

the hatch lid will move a lot, i would sound deaden it and fill it with expanding foam. when/if you fill it with that foam take the license plate light out and hang the wires down so that when needing new bulbs you can get the light out. ive heard of people gaining and loosing spl from sound deadening so it hit or miss. i havent done much in that area so i dont know yet.

[fecupe2001]

yeap, sub up /port up it`s the best on that focus with 2 subs, single sub i´m pretty sure you would get louder with sub up or back/port side, with that amount of power, i would do somthing like 2.25 cubic feet and single 6" aeroport tuned around 44 hz for comps and for daily whatever you want, that would be way louder IMO

[RooTxBeeR]

45's decrease SPL!!!!