subwoofer help

[Navy I.C.]

the offset issues i know off have to deal with imaging and delay

[DannMann99]

but what you suggested should work right?

[Navy I.C.]

yeah if it was a low z (impedence) problem you should be good

[DannMann99]

but if its some offset problem i shouldnt? i dont even know what offset does lol. im just saying i dont want to rewire it for nothing, because of some offset bs.

[Navy I.C.]

you dont have to rewire your sub, put a multimeter across the positive and negative wires going to your speakers. and just set it for resistance. if you dont have one use one at a local stereo shop.

[PaulD]

offset is a signal riding between two halves of a signal when the postive and negative are amplified using two different IC's. This setting is done by the factory ... and DC offset is bad for the speakers - probably good that your amp is shutting oof instead of burning up your speakers.

[Navy I.C.]

the only thing that i can think of from what i know about offsetting issues is when you delay parts of a sound stage to enhance imaging, like in stereo and mono settings or surround sound.
I heard off thermal and overload protection, but offset is a new one for me. I'll ask about it on the ship tomorrow and see what I find out.

[sr20de4evr]

Originally Posted by Navy I.C.

the only thing that i can think of from what i know about offsetting issues is when you delay parts of a sound stage to enhance imaging, like in stereo and mono settings or surround sound.
I heard off thermal and overload protection, but offset is a new one for me. I'll ask about it on the ship tomorrow and see what I find out.

you're thinking about the wrong kind of offset

With a speaker, it sits at equilibrium and has equal (or close to equal) room on both sides for the cone to move correct? When you feed an AC signal the cone moves the same amount in each direction, say out to 5mm and in to -5mm. When you have a DC offset, just sitting there doing nothing the cone is moved out or in a bit, and current is constantly flowing through the speaker. So now your "equilibrium" is at say +2mm, so when you feed this AC signal, the cone moves out to 7mm and then back to -3mm. It's much easier to bottom out the speaker with a DC offset, since your excursion in the direction of the offset is hindered, and it's also easier to fry the voice coil since there's constantly current flowing through the speaker even when sitting at rest, which never really gives the speaker a chance to cool off.

[DannMann99]

okay, whats a multimeter, and how can i set it for resistance

[DannMann99]

oh okay, i have a multimeter. im just not keen on how i would use it in this situation, or how i would be able to adjust anything on the sub.