how can i test my sub?

mikee816 · Post by **mikee816** » Sun Jun 18, 2006 3:23 pm

I bought an ava 15 from a tag sale today ... some guy said it was given to him by a friend before he passed away ... long story .. any ways the guy said he had no interest in it .. and hed sell it to me for 10 dollars .. so i had to buy it .. its in very good condition but I dont know if its in working order ....

how can i test the sub? i dont have an amplifier so are there any other ways i can test it ... i know theres a way to do with a 9v battery ... but im not sure how to do it ..

can u guys give me any ideas on how to test it out?

Justin from Detroit1 · Sun Jun 18, 2006 4:43 pm

Just hook the positive and negative from the battery to the proper terminals on the subwoofer.

mikee816 · Post by **mikee816** » Sun Jun 18, 2006 4:48 pm

what do u mean? how do u do that

is there a way to test it with a 9 volt battery?

Robert Wollenberg · Post by **Robert Wollenberg** » Sun Jun 18, 2006 6:23 pm

connect the negative terminal of the speaker to the negative terminal of the 9v battery and the positive terminal of the speaker to the positive terminal of the 9v battery and watch your speaker. If the cone moves, it's probably good. If it doesn't move, either your battery is dead or the speaker is. Test the battery by putting the terminals on your tongue. You'll get a nice little jolt but you'll know if it's good or not. lol.

Post by **GlassWolf** » Sun Jun 18, 2006 6:37 pm

a DMM will tell you if the coil DCR is fairly acurate.. a 4 ohm sub should read about 3.6 ohms
test coils for continuity and DCR.
after that just hook the speaker up to an amp and try it out.
you can also make sure the cone isn't 'frozen' due to a fried coil.

mikee816 · Post by **mikee816** » Sun Jun 18, 2006 6:41 pm

the sub is a dual 2 ohm so what should it around 1.6 or so?

what would show me if the speaker is frozen? it seems to have good movement without being attached to an amplifier .... but im gonna give it a try ... and see what happens

Post by **GlassWolf** » Sun Jun 18, 2006 6:49 pm

1.6 to 1.8 yeah
just push the cone gently. see if it moves freely and returns to center.

mikee816 · Post by **mikee816** » Sun Jun 18, 2006 7:20 pm

i pushed the cone in gently returns right back to its original position ... im gonna buy a mulitmeter ... and see what happens from there ...

thanks glass

Darthness · Post by **Darthness** » Sun Jun 18, 2006 7:25 pm

killer deal. i'll buy it off you for $20 (double your investment.)