Well, I'm not as far forward as I'd hoped and that is because the only place I could find that was stocking a GNX seemed to have no idea how to use it! When I first plugged my guitar in using a Marshall JCM800 model it just sounded like a bag of angry wasps. I left and went back a couple of hours later with my own amp to give them a chance to read the manual. That did improve matters but it still sounded like a very processed signal, unlike the Vox. As Guitarist magazine gave it 5 stars I assume that I simply haven't heard it at its best. I did, however, hear enough to convince me that it is as good as the Boss and as it's the thick end of a hundred quid cheaper so that's the Boss out of the equation. There was certainly that latency people talk about between patches and it was mildly annoying but realistically, I'm a bedroom player so it's hardly the end of the world.. Overall I thought that the lo-gain tones and the Hi-gain sounds were pretty good given the ineptitude of the sales staff. Pinched harmonics were really leaping out all over the place when I played Hi-gain. It seemed like I just thought 'pinched harmonic' and there it was. It was that Mashall JCM800 model that has really made me stop and think. To me that is exactly the amp where I want that warm tube sound and it was exactly where the unit sounded most artificial and processed. Given all I've read about the GNX it was a big disappointment but as I said, it may be due to the sales staff not knowing what they are doing.
I then went and tried the Vox again. God that UK80s model is fantastic! So warm and tube-like. As for the problem of High Gain, I tried the US Hi-gain model without any pedals at all and just pushed the gain on the amp model. It turned out OK, though I had both controls pushed hard to get that and I think the tone would have been improved if I'd backed off on the amp gain but added a distortion pedal, which of course would preclude the use of a Wah effect.
Now comes the crunch. I KNOW the Vox is really good at reproducing valve tone and I can get one for £247 but I suspect that to really get great Hi-gain sonds from it, at some point I will probably have to invest in a good distortion pedal to go with it. The alternative is to take a chance on the GNX3000. The reviews are excellent and it got that 5 star award from Guitarist magazine so there must be some great sounds in there, it's just that I couldn't access them in the time I had. If I go that route it will have to be, to a degree, a leap of faith as I simply trust what others have said. Having said that, it is only £169 online and that saving may open up other alternatives. With the difference I could buy the MFX Supermodels or I could maybe try a Harmonic Converger on it. Would it be possible to use some kind of valve preamp with it to warm up the signal? I've heard that done on a Roland Cube before and it was improved dramatically. The fact is the shop I tried is the only one around here that seems to stock Digitech products and they didn't really know how it worked. I think what I need is someone who knows a GNX3000 well and has also tried the Tonelab so they can advise me if the GNX can get close to the tube-like tone achieved by the Tonelab or would know if any of the ideas I mentioned might work. Is there such a person out there?