perhaps with the AD50 and the 12" speaker the high gain channels would sound better. the 10" speaker on mine has pretty bad bass response, producing either a muddy or farty sound, so i back off the bass on mine. the mids are rather well pronounced but i think having higher treble does the trick for cleans and makes the high gain channels more usable. adding a pedal on the OD channels can give a pretty nice classic rock drive.
*sorry for the use of relatives (pretty, rather etc) but a modelling amp is a modelling amp and is only capable of coming rather (lol again) close to the original, but having a separate character of it's own.
Btw the only channels i use now are the
- Vox AC30TB: For both dirty and clean rhythm and passable leads (both with the help of a Hughes and Kettner Tubefactor to give it a more natural tubeish flavour
- OD: Heavier less brit overdrive, bordering on distortion (again with Tubefactor, but alone it's capable of ok tubeish breakup)
Pros:
- Natural enough overdrive channels for it's price
- Exceptional cleans in it's price bracket
- Above average effects
- Attenuator
- Sensitive EQ + Gain (makes quite a bit of difference with a tweak of the gain knob)
- Vintage Vibe 8)
Cons:
- So far i've never found a decent lead channel without using a pedal (if you do pls tell me)
- Inaccurate high gain channels; the only partially usable one is the NuMetal channel (Mesa) but too scooped and bassy for my liking at cartain settings, but at lower gain, with a OD pedal, the OD is surprisings natural
- Saving the channel doesn't save the master volume setting together with it, so your clean and dirty channel would have quite a big volume disparity
- Bad bass response
- Doesn't respond well to some pedals. I could barely get a usable sound when i put a GT2 i got for a steal together with it. it's either a) they just don't go well together or b) the GT2 was err 4 years old. In the end sold the GT2, discovered that i'm an OD guy. Oh but for the settings that did work, i got this fabulous Santana smooth tone with mucho sustain and also a close Megadeth like tone.
In the end it all comes down to YOU in deciding whether this amp deserves a space in your room. For all i know you may like scooped muddy hi gain tones 8)