I have a Pioneer Surround Sound Amplifier with 4-301-Book Shelf Bose Speakers. Two of the four outputs failed on the rear of the amplifier, thus all I can listen to are two of the four Bose Speakers. Is it possible to hookup two sets of speakers to the positive and negative terminals on the rear of the amplifier for the right side and again for the left side, thus being able to use all four sets of speakers in stereo? Currently the speakers that are being used are opposite (diagonally) apart from each other.