Square dance sound a big a small how

Sound for a while big for a while small that is big and small fault, is due to the amplifier in the amplifier block heat sink is too small, when the sound is big, the current increases, the amplifier block output power increases, the heat also increases, due to the heat sink is small, not enough heat dissipation, resulting in the amplifier block heating temperature rises, heat fast self-protection start, the output power is reduced, the performance of the sound becomes small. And then due to the sound power output is reduced, the heat is reduced, the temperature drops, the amplifier block is back to normal, the sound becomes louder ...... so the cycle. Solution: Increase the area of the amplifier block heat sink.