BSS AR-133 Active Direct Box/Line BalancerThe unit includes phantom power and battery supplies as standard. Should the phantom power from the console fail or be accidentally switched off, the AR 133 automatically switches over to the internal 9V battery providing uninterrupted use. The unit is housed in a rugged aluminium extrusion case, with robust polyurethane end cheeks which give the AR 133 a very distinctive look. Input connectors are both 1 4" jack sockets and an XLR socket, the latter