when you hear a loud crack, that means the voice coil hit the magnet. Thats about as far as it can go. It will be a sudden crack noise whenever the bass hits.
Anonymous
Posted on
.....um....if you drive a sub hard enough to here it "crack"...or bottom out....thats never a good thing!!!
It depends on what kind of excursion you're talking about. Full mechanical excursion is usually when you'll see the surround stretched as far as it can go, but this is usually coming with some damage, like the voice coil hitting the magnet for example (you should NEVER let this happen) if the sub isn't designed to counter this. Linear excursion is really hard to tell. You can usually tell by listening, distortion will increase a lot when the sub is at or past its linear limits.
Anonymous
Posted on
Thank again Jonathan So, it's true better to underpower our sub rather than over powering it, should the amplifier have more than the power limit and have it "turn down" or get a ampilier that has a lower power rating (200-300 watts). Say if those are the choice.
Usually, it takes much more than the rated power to reach full mechanical excursion, so if you stay within specs you'll be ok. Also depends on the enclosure. I'd do an amp with either the rated power or a little above. Underpowering can lead to damage as well if you lead the amp into clipping, overpowering will do the same, but you'll usually not clip the amp as much since a more powerful amp will be louder.
Anonymous
Posted on
More is less!! LOL The more I read about car audio world, the more I find out how less that I know. I thought I was in the middle of the ocean but I was just baraly touching the shore line.
also heres an example for you i have two lanzar dc 12's and am pushing them with twice their rated power 1400 rms into 700 total rms 12's (350 rms each 12) and they take it. I think the key is clean power without clipping that way if the subwoofer is vented a vented basket design like my lanzars they can keep extending and get the propper air to the voice coils