Commonly, audio crossovers are designed to split an audio signal into several frequency ranges so that each resulting signal is adequate for the speaker drivers they are connected to. Typically, low range is sent to the big woofers, mid range to smaller woofers and high range to the tweeters. The ADDAC607 enables you to split the signal into different bands, creating many interesting processing possibilities. For example, by independently processing specific frequency ranges, one can add delay on only the high frequency range. Or, users split a signal to feed three different compressors for multi-band compression. Finally, DJs can use the Gain knob as a 'kill switch' to remove an entire frequency band, if desired. Although ADDAC607 operates in Mono (for Stereo signals two modules can be used) there are two audio inputs, making it easy to achieve stereo to mono summing. The Mono Sum Out carries this summed signal. This is pre-gain and can also be used as a buffered Thru output. The ADDAC607 is a great companion to the ADDAC220 Dual Envelope Follower+, since it allows extraction of dynamics from any signal in a focused frequency range. This allows it to separate the frequencies of a kick drum and a snare, for instance. Specs 6HP 4.5cm deep 60mA +12V 60mA -12V Product Specs Item Number: 37338 Make: ADDAC System Model: ADDAC607 Crossover Condition: Brand New Finish: Black Categories: keyboards-and-synths ⇒ eurorack Made In: Portugal MPN: ADDAC607