Genzâ¢Benz's amplifiers from the Shuttle series was created for on-the-move bassists who need a flexible, full-featured combo system that is easily transportable and sounds good too.The core of the series is the lightweight Shuttle amplifier design. The 6.0 weighs only 3.75 lbs. and delivers 375 watts at 8 ohms and 600 watts at 4 ohms. Though this is a combo, the amp chassis can be easily removed from it's combo "saddle" quickly and carried to another gig in the pocket of your bass case or the available carry bag. The chassis has a handle too that makes carrying the cab, just as easy.The head is extremely useful as a standalone unit, with a headphone output that is excellent for quiet, personal practice sessions. You can adjust the volume level and tone you hear with the analog 12AX7 tube preamp, and, using the Post EQ setting on the DI, you can turn the Shuttle 6.0 into an outstanding preamp for recording. It also has an extended range input gain for active/passi