hear a smacking sound in a sub test....

L

lexmark

New Member
ok i know this isn't the best sub in the market but i have a z2300 2.1 with an 8 inch sub, I'ive been running sub tests from youtube and it just shakes everything in my room but when it goes to a certain frequency it sounds bad... like something in my sub is hitting another part hard... its hard to describe, its just an abnormal sound... like a "clak clak" lol :P something isn't right here.. it gives a slapping sound of two hard objects hitting each other... is it ok to run the test with this slaping sound going on? or is it damaging my speakers?

what gives?
 
it happened to me-the coil of copper wire that recoils the speaker surface is damaged!!!

i dont know the proper names or terms but that copper coil has been damaged...
 
That would be the voice coil (consisting of a bobbin, collar and winding) which is the coil of wire attached to the apex of the cone of a loudspeaker. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.

The speaker may still make sound, but it will be distorted, and when you push the cone in and out by hand there will be a “scraping” noise, felt as much as heard, which indicates that the voice coil is rubbing in the magnet gap. Other physical indications of a “blown” speaker can be an inability to move the cone in and out manually, indicating that the voice coil is stuck in the gap (from overheating, deformation, maybe even melting of the insulation or adhesives used to assemble it). I have seen speakers where a combination of voice coil damage and overexcursion has resulted in a cone which can be pushed in and will stay there, can be pushed out and will stay there, but will not “center” to its normal resting position.
 
Ultranothing said:
That would be the voice coil (consisting of a bobbin, collar and winding) which is the coil of wire attached to the apex of the cone of a loudspeaker. It provides the motive force to the cone by the reaction of a magnetic field to the current passing through it.

The speaker may still make sound, but it will be distorted, and when you push the cone in and out by hand there will be a “scraping” noise, felt as much as heard, which indicates that the voice coil is rubbing in the magnet gap. Other physical indications of a “blown” speaker can be an inability to move the cone in and out manually, indicating that the voice coil is stuck in the gap (from overheating, deformation, maybe even melting of the insulation or adhesives used to assemble it). I have seen speakers where a combination of voice coil damage and overexcursion has resulted in a cone which can be pushed in and will stay there, can be pushed out and will stay there, but will not “center” to its normal resting position.
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I know nothing about speakers or subs but im not really sure mine is damaged... it only makes this slapping sound on a certain frequency at high volume, it only happens once in a blue moon on deep bass tests... im guessing its just a cheap woofer (which it is) but if you say its a defect or broken i might return it
 
no if its cheap and your giving it some stick it will make a slapping noise because it cant handle the current you are throwing at it!

you need to keep away from that level or it will blow the coil!!!

been there done that twice lol
 
Funkysnair is correct - in this case, the Logitech z2300 sub just isn't going to give you that low end "boom" that I believe you're seeking.

In the end, you get what you pay for and pay for what you get.
 
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