Powerful power: each channel output up to 300W power, provide strong sound effects, suitable for large sound use Multiple channel distribution: 1 in 4 out, can be output to four region, to meet the demand for multiple region distribution. Losslessly design ensures that there is loss during the transmission of , providing clear, highly sound effects. Flexibility: Each channel is independently controlled, inputs of different zone can be adjusted according to demand to achieve personalised setting. Suitable for large shop, conference , and other commercial place for partitioned source distribution and control, providing a highly