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New 18" Btl Problem


greg662

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I did not check the box calculations, but I can tell you it takes a lot of hard playing on those subs to get them sounding good. Man they are stiff out of the box.

Current system:

1997 Blazer - (4) Customer Fi NEO subs with (8) American Bass Elite 2800.1s

Previous systems:

2000 Suburban - (4) BTL 15's and (4) IA 40.1's = 157.7 dB at 37 Hz.

1992 Astro Van - (6) BTL 15's and (6) IA 40.1's = 159.7 dB at 43 Hz.

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I talked to the guy that built the box and he says the Fb is at 37Hz with a peak roll off at 41.5Hz he said he built it for high SPL and not a daily driver box and is rebuilding me another one. So i guess this is my real problem along with the sub not broke in

Thanks for all the input

2 15" DC LVL 5' crescendo 5500 yellow top under the hood and two xs power d3100

Big three upgrade

Rockford Fosgate T162S components in front

Rockford Fosgate T152 in the back

Dynamat everywhere

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  • 3 weeks later...

just thought i would let yall know i got a new box, cd player and rca and i works perfect now. went to my first local comp yesterday and won first place with a 147.1 with the TL mic on the dash

2 15" DC LVL 5' crescendo 5500 yellow top under the hood and two xs power d3100

Big three upgrade

Rockford Fosgate T162S components in front

Rockford Fosgate T152 in the back

Dynamat everywhere

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just thought i would let yall know i got a new box, cd player and rca and i works perfect now. went to my first local comp yesterday and won first place with a 147.1 with the TL mic on the dash

congrats!!! Question for you though. What is your gain set at now? Have you seen the rms voltage chart exposport has on his sig? I used that chart and jlaudio's directions on how to set amplifiers to the right gain setting and it works great. Granted, there is no way to tell if something is clipping without an o-scope, but using the procedure that jl audio says to use to set the output voltage on the amp, it works great for me. check it out!!! setting gains too high only adds to distortion and destruction of equipment. But congrats on your score and placing!!!

Loud as f*ck, and sounds good doing it.

Team built from here on out!!!!

BIG things to come.........

Missing link is the shite!!!

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congrats!!! Question for you though. What is your gain set at now? Have you seen the rms voltage chart exposport has on his sig? I used that chart and jlaudio's directions on how to set amplifiers to the right gain setting and it works great. Granted, there is no way to tell if something is clipping without an o-scope, but using the procedure that jl audio says to use to set the output voltage on the amp, it works great for me. check it out!!! setting gains too high only adds to distortion and destruction of equipment. But congrats on your score and placing!!!

i have it about 3/4 the way up but for the comp i had it all the way up

2 15" DC LVL 5' crescendo 5500 yellow top under the hood and two xs power d3100

Big three upgrade

Rockford Fosgate T162S components in front

Rockford Fosgate T152 in the back

Dynamat everywhere

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Ya you never wanna have your gain all the way up, thats just looking for trouble. Check out some past threads on how to set your gain. Got any videos of the sub in the new box?

225 Excessive Amperage Alt.

4 Yellow top batteries

Pioneer AVH-6600

Kicker KQ5

2 FI 18 BTL's fully loaded

2 zx 2500.1's

4 ks6.5 coaxials

4 ks5.25 coaxials

kx650.4

http://www.cardomain.com/ride/2358078

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I've had max gain for every amp i've ran in my car

SH!TTY rca voltage FTL need a new deck or line driver or something idk its 1am

-Drew

detail.gifI am a United States Military Arts and Crafts Professional. Sand it off, Paint it on. detail.gif

uhoh_45 said:
dont be a pussy P give the jeep to drew
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I've had max gain for every amp i've ran in my car

SH!TTY rca voltage FTL need a new deck or line driver or something idk its 1am

-Drew

your kidding right?

if im understanding this correctly you run all your amps with the gain maxxed out?

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well i can turn my gain up all the way and the sound doest sound bad at all but i have a clippin light on my bass knob and it will stay lit so if the amp is clippin but doesn't sound bad will my amp or sub still blow? i dont really get what clipping is.

and no vids yet but i hope to get some soon

2 15" DC LVL 5' crescendo 5500 yellow top under the hood and two xs power d3100

Big three upgrade

Rockford Fosgate T162S components in front

Rockford Fosgate T152 in the back

Dynamat everywhere

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