18A: 1) Dimensions: 255 x 75mm 2) Power: 5W 3) Weight: 600g 4) Frequency: 150 - 15,000Hz 5) AC: 120V 7A: 1) Dimensions: 230 x 97mm 2) Power: 5W 3) Weight: 970g 4) Frequency: 150 - 15,000Hz 5) AC: 120V 14A: 1) Dimensions: 210 x 82mm 2) Power: 5W 3) Frequency: 150 - 15,000Hz 4) AC: 120V musicsources# Musicsources1# YAHOO ID : xingboxia