Did a bunch of playing. Some of the models are incredible - you can clearly feel the depth of the modeling.
* US Tweedman - Phew - just wow. What an amp!
* WhoWatt 103 - Fantastic model. Sounds and feels spectacular.
* US Dripbass - Love this model
* Brit MegaBass - Just amazing!


In almost all cases (i.e. even outside of the above 4 models), when the presence and treble are cranked, I like the models fine. The Helix models lack some of the heft but there is more high-end/detail, on average, which I like.
* US Tweedman - Phew - just wow. What an amp!
* WhoWatt 103 - Fantastic model. Sounds and feels spectacular.
* US Dripbass - Love this model
* Brit MegaBass - Just amazing!



In almost all cases (i.e. even outside of the above 4 models), when the presence and treble are cranked, I like the models fine. The Helix models lack some of the heft but there is more high-end/detail, on average, which I like.