Listed price includes tariffs + duties + fees (approximately 14%) we are now required to pay on imported Cwejman modules. The MMF-1 is an extremely flexible filter. The variable SPACING (bandwidth) and 2 variable resonance peaks make it possible to create various vocal-like sounds. The circuit design is 'state of the art' analog and the results are truly impressive. Wide frequency range from 1 Hz to 25 kHz Vital parameters such as CUTOFF, Q-PEAK and LEVEL output Selectable 2, 4 and 6 poles Low, high and band pass mode Clean sound even in self oscillation mode Ideal as "effect filter" with external sound material Clean, yet "warm" and "smooth" sound Low noise The Multi Mode Filter offers 7 modes of operation: Low pass High pass Band pass Dual band pass 1 Dual band pass 2 Dual band pass 3 Notch