MIDI THRU and Filter Box shares 1 MIDI IN signal to 4 MIDI THRU ports.
Programmable MIDI filters: 1. MIDI Channel mapping 2. MIDI Transpose 3. Velocity 4. Program switch ON/OFF 5. CC Controller ON/OFF 6. Pitch bend / After touch ON/OFF 7.System Exclusiv ON/OFF 8. Realtime Messages ON/OFF

FEATURES:
1 MIDI IN to 4 MIDI OUT Thru Box • MIDI powered • Multiple filter functions • Channel Mapping • Transposer • Program Changer • Controller Filter • Programmable with the Keyboard and DIP switches, or Windows PC editor software