about 2 months ago I traded for a vetta 2-12 combo(love it)and reading about that stumbled upon the vraiax guitars.
I do alot of different tuning and thought a variax guitar would fit the bill.found a nice variax 300 online and bought it.
I changed the strings and adjusted the truss-rod and it played great,I was inlove with it.the first practice with it I started to get a weird noise through my amp but it was very low so didnt think to much of it but the noise got progressively worse everytime.I was using the xps to power the guitar and thought it could be that,so I used the batteries to power it and that made it worse.It would make weird thumping noises,change in between tuning,even got stuck on the sitar sound no matter the position.at this point it was unusable and I was like damm I just love this guitar but cant use it like this.one day when it was doing all this I had a 9volt battery so I plugged that in instead of the AA batteries and it all cleared up like magic.I checked the volts of the 6AA batteries and they were good 8.67 volts so it wasent dead batteries,but I was like cool I will just use a 9volt,WRONG.lol it drains the 9volt in about 30 mins or so then the guitar just cuts out.So i needed to figure this all out or this guitar is useless.The first thing I did was take the guitar apart and see if I could see any issues.
the case of the electronics was hitting the side of the guitar in 2 spots,I know its only wood but they do have 2 grounds going to the body and a black paint that looks like it could be a conductor.so I lined the inside of the body with gorilla tape.I also noticed that the power wire going to the battery pack was chafed at the connector.while i had it all apart I wanted to see if I could put a rechargeable pack of some kind in there instead of AA batteries.I fly rc planes and helicopter and one of them uses a 2s lipo pack that has a max volts of 8.4v fully charged so I said what the hell Ill give it a try.I soldered in a female jst connector as the battery has a male connector,put it all back together.
And to my surprise no more noise at all not a peep,sounds awasome,works perfect,etc
and the battery lasts a long time!! I start out a 8.4v and after 5 hours of use,im at 7.6v so I still have lots of time left,
you just dont want to run a lipo down too far so I havent tried to see how long I could get.my guess would be at least 6-7hrs.
also now the xps works perfect when not using a battery,so what ever I did fixed it.also been using the lipo for a month now and still working great.
I also made an adapter so I could still use the factory AA pack if I wanted to.