Wiring speakers in parallel to a mono amplifier is a common way of adding multiple subwoofers into a car audio system. Because the mono amplifier typically only has one set of speaker output terminals, it's necessary to connect the multiple speakers using a specific wiring method. The principle is simply to connect the positive speaker amplifier to the positive terminals of the speakers (and the same with the negative).
Instructions
1. Cut lengths of speaker wire long enough to reach the speakers you'll be wiring. In the case of two speakers being connected to the mono amplifier, you'll need one length of speaker wire to go from the amplifier to the first speaker, and another length to go from the first speaker to the second speaker.
2. Strip the insulation off of the positive and negative leads of both end of each piece of speaker wire, so that each piece of wire has 1/2 inch of bare wire exposed on the individual leads.
3. Connect the positive and negative leads of the first piece of speaker wire to the respective positive and negative speaker output terminals of the amplifier. For most amplifiers, loosen the screws in the terminals, slide the bare end of the wire under, and tighten down. Some amplifiers will have hex screws that open a hole when they are loosened. In that case, loosen the hex screws, slide the wire in, and tighten down.
4. Take your second piece of speaker wire and connect the positive and negative leads to the terminals of the second subwoofer. Twist the subwoofer box's speaker terminals counterclockwise to loosen, slip the wire in the opening that's revealed, and tighten down.
5. Take the loose ends of the first and second pieces of speaker wire, and twist together the positive and negative leads to make each a single connection. Then loosen the speaker terminals for the first subwoofer, and insert the combined positive and negative leads into the respective terminals. Tighten the terminals to secure the wires. You've now connected two subwoofers in parallel from a mono amplifier.
Tags: positive negative, speaker wire, negative leads, positive negative leads, mono amplifier, piece speaker, piece speaker wire