The MIDI murf makes a lot of sense, midi sync is the way to make the timing fit to your music. But couldn’t you do exactly the same with a Voyager and sending CC messages from an external sequencer to change the VCF cutoff in time to your music?
Just asking because if the murf does more, I’d like to get one.
The Midi MuRF offers eight bandpass filters in parallel… gives a totally different sound to the two Voyager filters. Another big difference is that you can only send cutoff CCs to the Voyager filter and/or fire the filter envelope with MIDI… the MuRF is firing a separate envelope for each of its eight filters independently, so it’s really “8-band polyphonic” where the Voyager can only fire its single filter envelope monophonically.
Plus, each filter on the MuRF has its own level slider that goes to zero, for true DJ-style “EQ-kill” effects.
I think it’s safe to say that the MIDI MuRF has a large number of sonic tricks that cannot be covered by the Voyager… or by any other piece of kit I can think of! It’s well worth a try. 
I have used the Voyager to replicate things that I have done the a Bass MuRF. Things had to be set up just perfect on the Bass MuRF and I had to start the sequencer at the exact right time to get the sound that I was looking for and have it fire off at the right point in the song. The Voyager lets me do that now much easier by triggering the gate via MIDI and alternating FCO setting for each trigger.
However, the MIDI MuRFs abilities far surpass the Voyager as far pure filter manipulation fun. Hands down.
I did not know that…
Thanks Amos, well worth asking that question! I really like your audio demo too, lots of potential in the midi murf.