Bose 4.2 Series II Owner's guide - Page 5

Testing the connections To make sure that the speakers are connected to your amplifier "in phase' - positive to positive, negative to negative - perform this simple test. 1. Set your sound system for MONO (monophonic) reproduction. Be sure the balance control is centered or set to normal. 2. Temporarily place the speakers close together, facing each other. 3. Now, play some deep bass music over the system. If your speakers are correctly phased, the sound will appear to come from between the Speakers, providing full, natural bass response. 4. If the music seems to be lacking in deep bass, reverse the + and - wire connections on one speaker and repeat the test. Use the connection thatproduces the most powerful bass. Amplifier/receiver considerations Your 4.2" speakers incorporate heavy-duly driver elements designed to resist many types of electrical stress. However, any speaker can be damaged if the amplifier driving it should fail. Speaker damage may also occur by playing the music so loudly that it sounds distorted. This can happen even witha low-poweredamplifier or receiver. Your 4.2 speaker system is designed for us', with amplifiers or receivers rated from 10 to 150 watts per channel. For further information, refer to your amplifier or receiver owners guide. • 4