Class AB output circuit
Full short circuit protection
Open-circuit protection
Overheat and overload protection
Peak power limiter
Clip indicator
Soft start
Dual speed fan motor cooling system
Input sensitivity selector
Stereo/bridge/parallel selector
Input connectors: 6.35mm phone jacks
XLR connectors
Output connectors: Neutrik speakon 4
Versatile binding post (BA-4250 only)