Verification of an amplifier's specifications mean that it achieves as near as possible the original intended performance.
Some service houses just make sure a repaired amplifier produces the watts! Invariably, checks for items such as crosstalk can indicate internal wiring faults. Residual noise can point to connectors that need replacing ... the list goes on.
When Lab.gruppen started to build amplifiers the one thing they wanted from their designs was longevity. There is no reason why any of their amplifier designs should not give a working life of more than 20 years. However, this can only be achieved with the correct maintenance schedule. We recommend that you only have your amplifier repaired by an official Lab.gruppen service agent and you can find your nearest service centre here