QuestionI have an old Rotel amp with a pair of Mission speakers. Although this amp is almost 30 years old, it sounds better than most "modern" amps. Nevertheless, I decided to test its capabilities with 4 speakers (2 front + 2 rear), since it was originaly built for that. In a strike of genius, I added an extra JVC pair of speakers, but the result was an overall crappier sound than just with one pair. No problem, I thought, I just don't have enough power for the 4 speakers. So I reconnected the JVC speakers that I connected to Rotel's rear speakers to its original amp.
And now begins the strange part: Do loudspeakers have memory? Because now these JVC only emit back vocals and side instruments in music!! The effect is kinda cool because you hear your favorite tunes in a whole different way... but I was hoping I can somehow revert this process... Maybe the impedance "killed" part of my speakers? Should I trash them?
AnswerNo, the speakers in parallel lower the impedance below the threshold of the amp. It is likely that has caused the amplifier to give up and go into overload.
You may be able to revive it with a reset. Just unplug the power main cord for 1/2 hour. Then power it up again and see if it comes back to normal.
It is also possible that the amplifier caused the voice coil of the woofer in the speaker system to go open circuit. This would produce the sound that you are speaking of.
So, you may have two problems going on at the same time.
You should be very careful about speaker impedance - if the load goes too low for the amp it can do serious damages to the and the load (speaker).
Hope this helps.
C
