SERIES ONE 412 PRO A/B CABINETS The S1-412PRO cabinets are standard ?1960? size and are built using a false/fixed baffle construction for a more balanced mid range response. When combined with a new 8 Ohm speaker exclusively developed for Blackstar you get a 4x12 with tone and projection unlike any other in its class. ? 240W / 8 Ohm angled or straight standard size 4x12? extension cabinets ? Switchable mono / stereo ? Finger-jointed birch plywood construction ? Special baffle for construction for more balanced mid range response ? Heavy gauge wire ? New 8 Ohm speakers