if you get resistance between the 2 neg then that would mean they are touching internally, and each amp is fighting each other, is each amp seeing 2 ohm( per voicecoil) and if you hook a amp up by itself to both coils( 1 or 4 ohm) 4 ohm isn't enough of a load for the amp to work, so it won't go into protect. and it probabally wont turn on at 1 ohm. so when you try each amp by itself your changing the final ohm into the amp, like zzzzzzz said, it's dropping too low in impedence, wiring 2 amps in one sub thats not strapple is hit or miss, it's really hard to tune perfectly and have it last.

 

okay so itested both coils and there reading 3.5-3.6 ohms, anyways i took the probe and put one on each negative of each coil and there is resistance 16ohms does this mean anything? also btw i hook one amp up 2 both coils it works fine just the amp shuts off after 20 mins b/c itsnot ment to take 2ohm load ? any other ideas?

 

ic what u mean thanx alot for the advice
so i should probably just buy a better amp (d class mono) and wire it in parralell to create a 2 ohm load? b/c 2 amps isnt gonna do me anygood