1971 Ludwig Rock-Duo Hybrids I custom ordered my Ludwig Rock-Duo drums direct from Ludwig Drums out of Chicago back in the spring of 1971. Sometime in the 1980's, I tucked away the second kick drum and converted my double kick over to a single bass set. I have loved and played these drums professionally for almost five decades! Over 1000 weddings, clubs, corporate events and they still look new! I just finished converting these to a hybrid set using mesh heads, internal triggers and a Yamaha DTX module. Conversion took close to a month to complete. I ordered the triggers, cones and heads from 628Drums out of Amsterdam. I did not drill any holes or damage these drums in any way so I can easily bring them back to acoustics. I power them with a Simmons DA200S drum amp, satellite PA speakers and 1500 watt 18 inch sub. They're amazing to play and sound very well balanced.