Load impedance: It indicates the load capacity of the power amplifier. The smaller the impedance of the load is, the stronger the current capability of the power amplifier. Generally speaking, most power amplifiers have a minimum load impedance of 4Ω, and the power amplifier has the lowest quality. The load is typically 2Ω. It can load 4Ω power amplifier in dual channel. It can load up to 8Ω in bridge state, 2Ω power amplifier in dual channel, and 4Ω in bridge state. In the bridge state, only 8Ω power amplifier can be loaded, and it is not possible to load lower impedance. Otherwise, it will be successfully built because the current is too large and burned.
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