On my Wavestation I go to MIDI>Transmit>Local Control>Disable
This will make your PC the master controller and you won't hear everything at once. Check your manual for something similiar for the i5s. If you are "daisy chaining" synths together, you will want to get midi interface that has as many ins and outs as you have synths. Then you can use all midi channels on all instruments and not just 4 at a time... you will want a 2x2. If you think you will get more equipment than plan ahead, check out
www.opcode.com. They have a 2x2 that is expandable to an 8x8.
[This message has been edited by WS (edited 08-05-1999).]