Here is what seem to be the best modelers today (no particular order):
Kemper Profiling Amplifier
![[Image: products_profiler-head-white_cropped_wh.jpg?v5]](https://www.kemper-amps.com/images/pagecontent/products_profiler-head-white_cropped_wh.jpg?v5)
Fractal Audio Axe-FX
![[Image: axe-fx-ii-wallpaper.jpg]](http://tonereport.com/uploads/img/axe-fx-ii-wallpaper.jpg)
Line6 Helix
![[Image: LINE-1006_Module_v03_je.Still001_r17489.jpg]](http://l6c-acdn.line6.net/helix/assets/end_frames/LINE-1006_Module_v03_je.Still001_r17489.jpg)
Amplifire
![[Image: amplifire-pedal-1200-1030x702.png]](http://atomicamps.com/wp-content/uploads/2014/11/amplifire-pedal-1200-1030x702.png)
All are essentially DSP-based, using algorithms which mimic amps based on their circuit schematic -- except for the Kemper which models the amp as a black-box at a higher conceptual level. All also use Impulse Response (IR) convolution to reproduce the speaker cabinet response.
Kemper Profiling Amplifier
Fractal Audio Axe-FX
Line6 Helix
Amplifire
All are essentially DSP-based, using algorithms which mimic amps based on their circuit schematic -- except for the Kemper which models the amp as a black-box at a higher conceptual level. All also use Impulse Response (IR) convolution to reproduce the speaker cabinet response.
