re sub heating up??

[dman4486 5,000+ posts]

would help, but I am 150 miles away:crap:

 

[tdblanchard13 10+ year member]

not to clutter this thread but.....how far are you from augusta? ill be by there in the next couple weeks.

 

[dman4486 5,000+ posts]

not to clutter this thread but.....how far are you from augusta? ill be by there in the next couple weeks.

only 120 miles, but it is all back roads and ~3hr drive

 

[Bass Addict 10+ year member]

possibly 2 things,your box is too small,and the frequency on ur hu,amp or both are set too high so the sub is getting more current than it can handle and not being able to breath sufficiently

 

[dman4486 5,000+ posts]

possibly 2 things,your box is too small,and the frequency on ur hu,amp or both are set too high so the sub is getting more current than it can handle and not being able to breath sufficiently

single 12" with ~2cubes before sub and port

 

[tdblanchard13 10+ year member]

ok, i have an alpine 9885. if im setting the hpf thats not affecting the sub is it? i know i have that at 120hz. as far as the amp settings i have no idea what the people did. i didnt really question them due to my lack of knowledge with all the technical settings on an amp.

ill try to be a little more detailed. so an alpine head unit has volume #0-30 (i believe). the sub preamp is #0-15. when my volume is at say 5, sub preamp on 5, its decently loud. if i wanted more vocals and turned volume to 15, sub preamp at 5, its as loud as the sub will get. even if i crank the sub preamp alll the way to 15.

btw my bass setting is at the max, which is 7. I hope all this makes a little bit of sense?

 

[tdblanchard13 10+ year member]

single 12" with ~2cubes before sub and port

is this bad? when they show that a sub is good at 1.5c, is that before the displacement of the sub or after?

 

[dman4486 5,000+ posts]

ok, i have an alpine 9885. if im setting the hpf thats not affecting the sub is it? i know i have that at 120hz. as far as the amp settings i have no idea what the people did. i didnt really question them due to my lack of knowledge with all the technical settings on an amp.
ill try to be a little more detailed. so an alpine head unit has volume #0-30 (i believe). the sub preamp is #0-15. when my volume is at say 5, sub preamp on 5, its decently loud. if i wanted more vocals and turned volume to 15, sub preamp at 5, its as loud as the sub will get. even if i crank the sub preamp alll the way to 15.

btw my bass setting is at the max, which is 7. I hope all this makes a little bit of sense?

hpf does not affect the sub....my money is on the amp settings

 

[dman4486 5,000+ posts]

is this bad? when they show that a sub is good at 1.5c, is that before the displacement of the sub or after?

I usually go for after sub and port displacement....in this case we do not know what the ports displacement is.

 

[Bass Addict 10+ year member]

i know i had a similar box like he has once with a cvr 12 running off of a kenwood 8104d,and when i ran the frequency at 200 on the hu,sub got a lil smelly.the one and only time that a sub got smelly on me.and im gonna say that box is tuned to 38-40 hz prefab boxes are only good for headaches,literally

 

[tdblanchard13 10+ year member]

hpf does not affect the sub....my money is on the amp settings

so if this is the case, would you think i need to change more than just the gains?? i know yall cant do much with out actually hearing and seeing in person. ill type up every setting on that amp tomorrow before i change anything.

 

[Bass Addict 10+ year member]

i never run my hu bass at max.try turning that back down,turn sub level to 15 so the voltage to the amp will be correct,and start over on the gain

 

[tdblanchard13 10+ year member]

i know i had a similar box like he has once with a cvr 12 running off of a kenwood 8104d,and when i ran the frequency at 200 on the hu,sub got a lil smelly.the one and only time that a sub got smelly on me.and im gonna say that box is tuned to 38-40 hz prefab boxes are only good for headaches,literally

i have never seen a option on my headunit that can change frequency. i can adjust the output like said before, and i can switch between sub woofer system 1 and 2 but thats not relevant to the problem. gah i wish i was near one of yall cause im scared to play this thing at all now. i wish i went with the se to be honest cause im all about loudness

 

[Bass Addict 10+ year member]

just try like i said,sub level @ 15,bass on 0,turn down the gain,turn up hu to a max point ,no more than 3/4's,or where ever you listen to it as long as its not max and start turning up the gain on a heavy bass song till you hear distortion or it stops getting louder,back off a lil

 

[tdblanchard13 10+ year member]

i never run my hu bass at max.try turning that back down,turn sub level to 15 so the voltage to the amp will be correct,and start over on the gain

why would the bass preamp affect the actual sub output? i understand sub=bass but i thought bass, treble, etc affects only the front stage, not the sub. Now that i know it does, why does bass setting affect the subs output but hpf doesnt affect it the sub at all. i thought the whole point of the sub preamp output thing on the hu is so u can change the subs level seperate from the bass settings on my frontstage (which is stock)

edit: heres all the settings on this amp http://mobile.jlaudio.com/pdfs/Slash_amps/250_1_MAN.pdf