Thumbs up on the AVC-R i want one badd and thank you jet for the price and Nengun preformance $580 is an awsome price brand new, on ebay the best i found was $480 but it was second hand with preset calibrations, brandnew there like 700 buks woo hopefully in a week or 2 ill be buying one. Are they hard to calibrate or should i get a tuner to do it for me ?