Blackstar"s True Valve Power offers six different power valve responses - EL84, 6V6, EL34, KT66, 6L6 and KT88. The patented ISF control gives you access to infinite new sound possibilities, from the USA to the UK. The unique Voice control has six different channels. Deep editing and storing of patches is simple using the Blackstar GUI software. Patches can be shared, uploaded and downloaded via the online community. The effects section delivers studio quality modulation, delay and reverb effects; four of each effect type, all based on classic and boutique effects.