New member Username: JdgrahamPost Number: 1 Registered: Jul-09 | I just put in my sound system and all was working well until yesterday when I hit 140 on the highway and the amp cut out and has been ever since once I turn up the volume. I also noticed that my sub is rattling now and it wasn't before. Please help, confused as to wether or not its a blown fuse, blown sub, or wiring. Thanks. Ps. When I eliminate the bass/sub and blast the speakers they still pump good clean sound and the amp doesn't cut out. |
Gold Member Username: SomedonniedudeIllinois Braaap MX Post Number: 2741 Registered: May-07 | Sounds like a blown sub. Push in on the direct center of the sub lightly, does it make a crunching or scraping sound when the cones moves? |
New member Username: JdgrahamPost Number: 2 Registered: Jul-09 | I will take it out of the box and check now, that wouldn't cause the amp to cut out though would it? |
New member Username: JdgrahamPost Number: 3 Registered: Jul-09 | Ya when I push the sub down in the middle it cracks and rattles a lot, does that mean that its blown? |
Silver Member Username: Vivi2000Lansing, Mi Post Number: 247 Registered: Aug-07 | That means the voice coil is blown and is now scratching. You fed it to much power or clipped the signal(most likely) so the voice coil overheated and broke. |
New member Username: JdgrahamPost Number: 4 Registered: Jul-09 | Ya I bought a new Alpine sub, and everything is fine and working again. But how can I prevent that from happening again? |
Silver Member Username: Vivi2000Lansing, Mi Post Number: 248 Registered: Aug-07 | Set the gain correctly. What amp and what sub do you have? This is what i use to set my gains, i tune it with the dmm first, then by ear afterward and make sure it still sounds good. http://web.archive.org/web/20080104010047/http://www.subwoofertools.com/forum/se tgain.asp |
New member Username: JdgrahamPost Number: 5 Registered: Jul-09 | I use an American Pro Audio 4CH 600w and now an Alpine E Sub, I also have my 6x9" JBL's hooked up to the amp as well. |