The Rolls SX21 is a 24dB/Octave two-way frequency divider intended for small sound reinforcement applications. It has Input, Low and High Output jacks, and Input, Crossover Frequency, Low and High Output controls. It is powered by . . .
The Rolls SX45 is a unique frequency dividing device for small sound reinforcement applications. The unit features a 12 dB/Octave roll off rate, a frequency dividing range of 50Hz to 2.5kHz, and an external power supply for noise . . .