A:Answer The LG 200W Hi-Fi Shelf System with 3-CD, Cassette and Bluetooth® Connectivity, Model # CM3370 is not designed with any provisions to add additional speakers. Speakers are available in alternative ohm ratings (Usually 4, 8, and 16 ohms) and usually, you need to match the output impedance of the amplifier with the speaker's impedance for maximum power transfer and so that you don't damage the amplifier in the unit. The speakers on this unit have an impedance of 4 Ω. If you use more speakers than what the unit is designed for, the equivalent overall impedance changes depending on how the speakers are wired. You can wire multiple speakers "in series," "in parallel" or in a combination of the two wiring configurations ("series/parallel"). The wattage on the speakers also indicates how much power from the amp they can handle before being damaged. When you use multiple speakers, the output power from the amplifier will be distributed among the speakers. Using speakers with the same ohm rating in multi-speaker cabinets ensures that the power is evenly distributed to each speaker. So if you know how to wire additional speakers to the unit. you can add additional speakers to this unit...^IFV
