Wiring, Stereo & Electronics Audio Components | Radars | Alarms - and things that spark when they shouldn't

Blown Sub question?????

Thread Tools
 
Search this Thread
 
Old 11-22-2008, 12:22 AM
  #1  
Staging Lane
Thread Starter
 
CR71's Avatar
 
Join Date: Dec 2007
Location: Corbin,KY
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
Default Blown Sub question?????

Well after only having my new pioneer premier 12 for about a month it for some reason took a dump on me. My question is will it hurt my amp if I leave it hooked up without a sub hooked to it or will i need to disconnect the power turn on wire?

Thanks
Old 11-22-2008, 11:44 AM
  #2  
TECH Fanatic
 
99345hp's Avatar
 
Join Date: Jul 2007
Posts: 1,516
Likes: 0
Received 0 Likes on 0 Posts
Default

I dont think it would hurt anything. You could disconnect power, because it is still drawing power from the car.
Old 11-22-2008, 01:24 PM
  #3  
Banned
iTrader: (65)
 
KEE AUDIO's Avatar
 
Join Date: Sep 2004
Location: Marietta, GA
Posts: 2,857
Likes: 0
Received 2 Likes on 2 Posts
Default

It won't hurt anything! Just disconnect the speaker wire from the amp and leave everything else alone. That way when you replace your sub you have less to reconnect.
Old 11-22-2008, 02:48 PM
  #4  
TECH Senior Member
iTrader: (35)
 
99Bluz28's Avatar
 
Join Date: Nov 2007
Location: C. V., Kalifornia
Posts: 9,705
Likes: 0
Received 10 Likes on 10 Posts
Lightbulb

You can also just pull the fuse for that amplifier.
Old 11-22-2008, 04:41 PM
  #5  
TECH Junkie
iTrader: (28)
 
whytryz28's Avatar
 
Join Date: Feb 2007
Location: Hawaii
Posts: 3,758
Likes: 0
Received 1 Like on 1 Post

Default

Originally Posted by 99Bluz28
You can also just pull the fuse for that amplifier.
+1 thats what i do.
Old 11-22-2008, 09:48 PM
  #6  
Staging Lane
Thread Starter
 
CR71's Avatar
 
Join Date: Dec 2007
Location: Corbin,KY
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the replies. But is there anything that you guys can think of that could of made my sub blow? The sub is rated at 400 watts rms and 1200 peak, and I was running 400 watts rms and 800 peak through it so it makes me think that it wasn't a over powering issue but something else. Anyone have any ideas?
Old 11-26-2008, 03:14 PM
  #7  
TECH Junkie
iTrader: (33)
 
LS1-450's Avatar
 
Join Date: Aug 2005
Posts: 3,783
Likes: 0
Received 9 Likes on 8 Posts

Default

Originally Posted by CR71
Thanks for the replies. But is there anything that you guys can think of that could of made my sub blow? The sub is rated at 400 watts rms and 1200 peak, and I was running 400 watts rms and 800 peak through it so it makes me think that it wasn't a over powering issue but something else. Anyone have any ideas?

Does the resistance of the sub equal that of the amp? If the sub resistance is less than that of the amp & you were hitting it w/ the subs max RMS, there's your problem.

For example: 400W, 8 Ohm AMP to 400W, 4 Ohm Sub = 400W/(8/4) = 800W
RMS @ the Sub.
Old 11-26-2008, 06:40 PM
  #8  
Staging Lane
Thread Starter
 
CR71's Avatar
 
Join Date: Dec 2007
Location: Corbin,KY
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
Default

I just found out today from a guy at the local audio what I did wrong. I turned up the Low pass filter on my amp up to 240 (not knowing what I was doing) and that caused a lot of distortion and fried my voice coils. I also picked up 2 new memphis 10's today and love em.
Old 11-29-2008, 03:44 PM
  #9  
TECH Addict
 
dragonrage's Avatar
 
Join Date: Sep 2006
Location: Massachusetts
Posts: 2,594
Likes: 0
Received 1 Like on 1 Post
Default

That's a lie. It will make it sound like crap but it has nothing to do with why your subwoofer fried. You sent it too much power. Period.
Old 11-29-2008, 10:49 PM
  #10  
Staging Lane
Thread Starter
 
CR71's Avatar
 
Join Date: Dec 2007
Location: Corbin,KY
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm still not sure how that would be possible when the sub is rated to handle 400 watts rms and 1200 max, and my amp only puts out 400 watts rms and 800 max.
Old 11-29-2008, 11:42 PM
  #11  
Teching In
 
#8sprkplug's Avatar
 
Join Date: Aug 2008
Location: Indianapolis
Posts: 23
Likes: 0
Received 0 Likes on 0 Posts
Default

if you didn't have your gains set correctly it could have easily clipped the signal causing your sub to blow, also if you were using bass boost it could have done the same thing. bass boost = bad




All times are GMT -5. The time now is 04:11 PM.