Changes

=== Modelers ===

Most recently, companies are developing digital devices using algorithms to emulate various pedals and amps (including pre-amp and power amp tube distortion). This allowed artists access to a greater range of combinations of pedals and amps and experimentation that would be impossible in real life - things like running amps at full volume with the tubes in class A operation biased as hot as possible or daisy chaining multiple amps.

== Effects Loops ==