I don't know if the GW-7 can play G70 styles. I didn't have time today to plug the GW7 up to my computer and I'm closed Sunday and Monday for the holiday. I will try it next week.
The sounds in the EXR and the sounds in the GW7 are very similar. I'm playing my EXR7 out of it's own speakers and I'm using Yamaha 3 way PA speakers with a Behringer powered mixer. I will compare them more next week. It's been a very busy Saturday in my store today and this is the first chance I've had to read the posts here today. Now, it's almost 6 PM here and I'm closing at 6PM and really need a couple of days off! I'm usually here 6 days a week.
George Kaye
Kaye's Music Scene
Reseda, California