I just got back from my local performance music center and picked up a Sabine RT 7100 rack tuner. This thing is cool its super bright, extremely easy to read, and 10 times more accurate then those little cheapo things they put in multi effects pedals. Plus it gives your rack alot of light, this thing is big and bright. When they say "you can see it from across the stage with sunglasses on", they mean it. It also has an awsome smart A/B system. you can run #1 inst. to 1 or two amps, #2 inst, into 1 or 2 amps, or have all going at the same time. The a/b has a really easy to read display, and it has a sensitivity light to the incoming gain. It halso has 1/2 step tuning mode, 1 step tuning mode, 1 1/2 step tuning mode and 2 step tuning mode. Great buy!