Anyone?
So I guess the majority of the people are satisfied with the horn.
Not exactly, it's a bit "meep" isn't it?
Personally it's just one of those things that was lower down on the list of priorities to get sorted as I don't ride in much traffic normally (quiet country roads round here) and wanted to get the ergos and convenience things done during the first summer of owning the bike.
I had a decent (if large) FIAMM aftermarket one on my now sold GS - there was loads of room on that bike to fit larger horns, think it used a relay to avoid upsetting the CANBUS with over-current draw.
Space is more limited on the Duke so something smaller is needed - an FIAMM Mini Blaster or Denali Sound Bomb Mini perhaps?
They should be a simple 5 minute job to replace - they aren't expensive and are much louder than the OEM horn.