beckyjc said: I'm a bit slow... If I put an effect on a preset channel, would putting another effect over that work?
I'll probably have a good look at the effects built in before I buy the pedals.
No, they're extremely simple to use, basically you have:
Amp which is your type of pre-amp, I.E. your clean or distortion but there's about 10 to chose from.
Effect which is your choice of effect, you also have the adjustable parameters for each effect.
You can set these to whatever you like and save that to one channel, change it and save that to another, if you save over the channel it just replaces what was there before. Think of it like a normal two channel amp but you can save where the knobs are so if some monkey twiddles with them you can still re-call your nice sound.
Some of the selectable effects are a combination of two effects, so you can get phaser and compression or whatever but not every mixed combination is available. It also has a really cool effect called "Rotary + Reverb" which is like normal reverb where you have the clean signal and the echo, but the echoed signal has a swishy sound to it which doesn't affect the clean sound, very cool, dunno how practical it is though.
If you go to the vox website you can hear all the different effects and stuff of the amp provided you have decent speakers on your PC.