GUITAR BAFFLE Auxiliary screen STWO (designed for the joint use of the HONE head). 150 watts at 4 ohms. 8 inch speaker. Recommended for instruments of medium / low frequency range: Double basses, cellos, ukebass, acoustic basses, flamenco drawers ... etc. Frequency range from 40Hz to 20Khz. INCLUDES PADDED TRANSPORTATION COVER. (To cover the full frequency range and get the most out of the amplifier it is recommended to complete the equipment with the SONE screen)