Manual says: Tuner Out Jack This standard ¼ inch jack is designed to provide a post-tube, pregain signal for connection to a tuner. It can also be used to provide pre-tone signal to other devices such as a direct box or console. Anybody is using it this way? I would like to give to the house console pre-eq signal, because I usually tweak eq to tune the venue specific stage sound and I don't want to have this setting in the PA.. That Recording Out XLR is post-eq.. Thanks.