Ndzeit Audio has updated Dirthead to v0.61.

Dirthead is a free tube guitar amp simulator VST effect plug-in for Windows. It features three channels, clean, crunch and ultra that can be activated by clicking on the yellow, orange or red leds. It comes with the usual controls found on guitar amplifiers and additionally a voicing knob that alters some internal poweramp parameters.

Changes in v0.6:

• New GUI.
• New oversampling filters.
• Completely redesigned preamp stages.
• Altered Tonestack and Poweramp.
• New Cabinet emulation (alpha).
• Some bug fixes.