The Symetrix 524E is a high-performance multi-mode crossover/speaker processor. The 524E can be used in stereo two-way and mono three- and four-way systems. But wait...there's more! Not only will the 524E slice your input signal into as many as four bands, it will also protect those expensive transducers from overload and it allows optimizing driver alignment. In today’s state-of-the art audio systems, the system crossover must now do more than simply slice and dice the audio signal into discrete frequency bands. Driver alignment, driver protection, CD horn EQ，LF tailoring are all parameters that the modem system crossover now must provide.