Do Subwoofers Lose Power Over Time?

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Do Subwoofers Lose Power Over Time? Do composite subs like the L7 lose bass over usage

#1 protegeboom

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Posted 18 June 2008 - 09:33 AM

I have 4 L7 15 kickers and it seems that 2 of them play stronger than the 2 new ones I have. Is it the voice coils that lose there resilience or is the magnets?
P.S. All 4 are of the same model year and build.

#2 FiBTLforlife

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Posted 18 June 2008 - 09:37 AM

protegeboom, on Jun 18 2008, 09:33 AM, said:

i would think that it would be the voice coals but dont take me up on that...ive had some amps do that to me but never a subwoofer.

This post has been edited by FiBTLforlife: 18 June 2008 - 09:37 AM

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#3 deafyT

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Posted 18 June 2008 - 09:40 AM

FiBTLforlife, on Jun 18 2008, 09:37 AM, said:

...ive had some amps do that to me but never a subwoofer.

caps inside the amps, like regular batteries, have a limited shelf life.

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#4 sactownstang

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Posted 18 June 2008 - 09:44 AM

plus after awhile those caps will leak and trouble will follow!!

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#5 Team Bassick (ALPINE)

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Posted 18 June 2008 - 09:44 AM

The subs have to break in then they will take more power and might get louder

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#6 protegeboom

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Posted 18 June 2008 - 09:45 AM

sactownstang, on Jun 18 2008, 09:44 AM, said:

plus after awhile those caps will leak and trouble will follow!!

I have all new T series amps.

#7 wL<3bass

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Posted 18 June 2008 - 09:49 AM

You need to break the subwoofers in.

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Colin - 1HVYHTR, on Sep 26 2009, 10:03 PM, said:

Your port was like: "Gimme Yo Sweata'!!! NOM NOM NOM"

czman30, on Jan 27 2010, 04:00 PM, said:

yea but my bro's a networking spaceshilist

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#8 banginAltima

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Posted 18 June 2008 - 09:55 AM

protegeboom, on Jun 18 2008, 12:33 PM, said:

I believe this maybe true... I have two RF T1 15's. They are down almost a full db, 145.5 which I did all the time down to 144.8. I have changed amps, head unit, speaker wire, etc. Still down a db. I check the coils with a ohm meter and they check fine. I have even added another battery. I don't know what else it could be. The box is the same as well as the tuning. I went from a RF T1001bd to another RF T1001bd to a Sundown 1500 and still can't get over a 145 with these subs.

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[BenH] 6:24 pm: clipping doesn't really hurt subs
[BenH] 6:24 pm: being an idiot is what blows subs

#9 Team Bassick (ALPINE)

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Posted 18 June 2008 - 09:56 AM

wL<3bass, on Jun 18 2008, 09:49 AM, said:

You need to break the subwoofers in.

Didn't I just say that??? Love it when people ignor the TRUTH preach on brotha

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#10 wL<3bass

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Posted 18 June 2008 - 10:06 AM

Team Bassick (ALPINE), on Jun 18 2008, 12:56 PM, said:

Didn't I just say that??? Love it when people ignor the TRUTH preach on brotha

Figured if a second person said it he might believe it.

Colin - 1HVYHTR, on Sep 26 2009, 10:03 PM, said:

Your port was like: "Gimme Yo Sweata'!!! NOM NOM NOM"

czman30, on Jan 27 2010, 04:00 PM, said:

yea but my bro's a networking spaceshilist

#11 Team Bassick (ALPINE)

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Posted 18 June 2008 - 10:19 AM

banginAltima, on Jun 18 2008, 09:55 AM, said:

This is also true when overpowering a sub way over rms and your constanly getting the coils hot after a while the hot then cold then got coils will get weak I say your subs are on there last leg there or the box is no good also makin the coils get hot

I got the first ever Db Drag Slammin 160+ Sticker
SS5+ KING OF CALI!!!!!!
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only one to get a Drag and Bass Race KING OF mutha Fu*ckin CALI!!!!!!!
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#12 deafyT

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Posted 18 June 2008 - 10:22 AM

Team Bassick (ALPINE), on Jun 18 2008, 09:56 AM, said:

Didn't I just say that??? Love it when people ignor the TRUTH preach on brotha

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#13 Kranny

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Posted 18 June 2008 - 10:43 AM

c is for cookie, thats good enough for me *jacks e-cookie*

nfsplayer, on Dec 23 2009, 06:20 PM, said:

i thought you only have to hook up 1 coil. cause right now i just have 1 side hooked up.

Red-navi-916, on Jan 22 2010, 10:04 PM, said:

u think your tougue tickles now, u shoudl download some decaf or bigpimpin slaps, your tongue will be bouncin lol

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#14 banginAltima

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Posted 18 June 2008 - 03:58 PM

Team Bassick (ALPINE), on Jun 18 2008, 01:19 PM, said:

How can my box be no good making the coils hot?

Quote

[BenH] 6:24 pm: clipping doesn't really hurt subs
[BenH] 6:24 pm: being an idiot is what blows subs

#15 protegeboom

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Posted 21 June 2008 - 01:35 AM

Team Bassick (ALPINE), on Jun 18 2008, 09:56 AM, said:

Didn't I just say that??? Love it when people ignor the TRUTH preach on brotha

Doesn't the sundown 1500 have more power than the T1001bd?

If so then the woofers do lose power.

#16 protegeboom

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Posted 21 June 2008 - 01:46 AM

banginAltima, on Jun 18 2008, 03:58 PM, said:

How can my box be no good making the coils hot?

I believe if the box is not tuned to the frequency of the woofer, such as wrong port length or box too large or too small it will cause the woofer to over work its suspension and overheat the voice coils. It may not have enough back pressure as well.

#17 ISO

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Posted 21 June 2008 - 07:18 PM

I didn't read the other shit much.
Your new L7s need broke in, Thats all.
Only run the new set for 2 weeks and they will sound like the old ones.
The suspension on the L7s is so tight that there is a dramatic difference in sound between a brand new one and a used one.(I know this for a fact)
The new ones will catch up after you get them broke in.
Period

You should be in the Kicker section.

This post has been edited by ISO: 21 June 2008 - 07:18 PM

Isobaric - Refers to the practice of coupling two drivers together to make them act as one.

A cap is only good if you have 0 voltage loss and want to clean up the power at the peaks of the ripples..

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