Analogue-sequencer

> So if I order the midi + midi sync option, I'll have :
> 
> four midi outs
> 1 dync sync out that also puts out midi sync (no midi notes)

The units Analogue Haven have are only wired for one or the other.
If you want both, a few extra components would need to be fitted which will
be supplied on request if you buy one without.
Same goes for existing owners.

> and my 808 will work as long as I have a midi cable with pin 
> 4 unconnected?

If you have the socket wired for both, yes.
You'd need to use a Y-cable to separate the outputs for MIDI and DIN
devices.
If you were to make a cable up, leaving out pin 4 on the DIN socket would
make life easy.

BTW The new 'restart' function on the DIN sync output is very handy for
switching between play and edit on an 808 without having to stop the P3.
Only problem is that sometimes the 808 will switch pattern if you move the
knob from 'manual play' to 'pattern write' while it's running. You can
reselect the right pattern before doing a FUNC+RUN to get the 808 to switch
to edit.

Best regards,
Colin Fraser
Sequentix Music Systems Ltd
http://www.sequentix.com