This professional power amplifier is Usound audio for many years devotes to the audio frequency domain newest technology crystallizes, the output power has covered 125Wx2-800Wx2/8Ω, the 2U standard engine case altitude, the fashion outward appearance, the brand-new concept design, It passes on the simulation amplifier the acoustic fidelity to be exquisite, intermodulations distorts lowly, width frequency range and so on multitudinous merits. The power amplifier protection circuit to be extremely complete, has over-load, overheat, the output shortcircuit, the DC cocurrent, Switch on/off speaker protection protective measures; In sets at the clipping limiter circuit, reduces distorts, protects the speaker UM series to be suitable extremely for the flowing performance, the conference room, Suits in situation uses and so on super Karaoke