Just bought a GB Shuttle 3.0 combo with the 10" cab. I tried it out on approval, and did an A/B against my Markbass LMII. Wow is all I can say. I never realised how much colour the LMII put into the sound until I did the test. The shuttle is definitely transparent, and obtains a great sound with all controls dead flat. The gut D and G come alive with the shuttle, quite amazing really. Why wasn't this amp available 20years ago?... I would have saved myself a bucket full of money Running the combo with my Bag End 1x12" cab is a revelation!