Would you consider unscrewing one of the smelly drivers? If yes, do so, DON'T disconnect it and place it on a stool (or any support). Drive the spkrs and check if the driver is heating up.
It sounds like you're overheating the voice coil -- but why is beyond me (dc entering the system? Coils shot??). As you say, you don't drive the spkrs too hard anyway...
It sounds like you're overheating the voice coil -- but why is beyond me (dc entering the system? Coils shot??). As you say, you don't drive the spkrs too hard anyway...