CITRONIC CX23. Filter slope: 18dB/octave. Crossover ranges - mono: 50Hz-5kHz;750Hz-7.5kHz; 2kHz-20kHz. Crossover ranges - stereo: 50Hz-5kHz;750Hz-7.5kHz. Frequency response: 20Hz-25kHz +0/-1dB. 40Hz ultra-low frequency cut.
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