Help troubleshooting my system!

[superchuckles]

you can check for a blown speaker with an ohm meter, but - it'll be an open or shorted condition. speakers rarely (if ever) actually read in ohms what their impedence rating is. the reason is because this rating is an ohm reading that is an average derrived over the amount of power consumed when the speaker is operated within the specified frequency range. those of you out there who are into ham or radio repair, know what i'm talking about right away, as do some of you who have electronics backgrounds -- the impedence number is derrived by measuring how many amps are being drawn from an amlifiers output, and measuring the voltage of the amplifiers output - taking that voltage & dividing it by the amount of current = the amount of functional impedence that exists from the amplifiers point of view. a speaker can easily have a resistance of far less than 1 ohm, & still be rated at 8 ohms. this is because audio is dc biased AC, and at the frequency that the ac passes thru the speaker & the way that voice coils passing thru magnetic fields function at those frequencies, the effective resistance increases. lot of technical stuff, but really - don't think that your speakers are necessarily blown just because you're showing a less than 1 ohm reading. check each speaker independantly (wires disconnected from one another and from the amp) -- CAREFULLY move the cone with your hands while watching the ohm meters readings (use alligator clips to hold the leads on securely so you know there will be good connections). if while you're moving the cone you get a sudden wild spike, you've probably got a break or short somewhere in your voice coil & need to replace the speaker. remember to move them SLOWLY since moving the voice coil adjacent to the magnet will induce voltage! in fact, you can see by your meters movement while moving the cone, that indeed the apparent resistance it's seeing changes. hope your speaker isn't blown dude, sux when ya have to replace the $$$$$ stuff.