The I series (2U) is designed for economical access to the premium sound quality
with professional power-handling capabilities and exceptional low-end response which
make it an ideal choice for stadiums, auditoriums, touring sound, discos or
other installations and touring applications that demand the finest audio quality.

It has multi-protections. Its intelligent cooling fan works faster as the unit gets
heater. When the unit reaches 90°C, it can work at a power of 100W lower
than normal (at full power) for long duration. When reaches 100°C, the output
is disconnected automatically. When overload protector works ("protect " LED lights
up), the amp circuitry will be in a "delay" works again. It also has DC-fault
power supply shutdown function.