KEF 107 Kube - Repair Help Needed (Schematic Diagram)

Rebuilt my KUBE 107 after a 3T regulator failure, and upped the op-amps to OPA2134. Does anybody know the proper setup procedure for MF and HF levels on the internal trimmers ? Easy enough to match the channels, but would like to know what frequencies best to use, and what level in relation to the LF (and test freq ?). Should they all be equal output for same input level for each band ?