In general minimum impedence is more important that nominal. According to Soundstage review
its impedance dips to a low 2 ohms in the high frequencies and could, therefore, present something of a problem for low-powered tube amplifiers and solid-staters that are less than stable into difficult loads."This would indicate that it might very well present a problem; since Tandberg is now defunct, and repairs are likely difficult/expensive, this might not be the best pairing. Disclaimer- never heard these together (or apart); just going on theory.