Just a small input as a blackheart user, it is a good amp at a good price too, i am able to have nice clean tones and classic crunch tones (reminiscent of old school marshalls) by diming the vol which makes it a really loud amp even though it has only 5 watts (it has a pentode/triode switch to reduce the power to 3 watts). Oh and if u plug this baby through an amp cab loaded with 12'' speakers, it will be so loud that u will rarely go past 9 o'clock on the volume at 3 watts! Solidly built, 3 band EQ, takes pedals really well, with options of taking different amp cabs (4 ohms, 8 ohms, 16 ohms), with plenty of mods that can be done to it easily, and an affordable price tag. I had mine modded by goose and have been using it for the past 1.5 years and counting.
On a side note, if u do not wanna buy a seperate amp head and cab, the blackheart combo comes with a custom eminence 12 inch speaker which is an advantage over the vox ac4tv. Both amps do not sound the same but are definitely great tube amps for musicians on a budget, so go and try the both of them out!