Complex sentence: The company is equally known for its uncompromising and idiosyncratic approach to hi-fi design, insisting that specifications and test bench power ratings are poor indicators of how good an amplifier sounds.
Split into simpler sentences: The company is equally known for its uncompromising and idiosyncratic approach to hi-fi design. Naim insist that specifications and test bench power ratings are poor indicators of how good an amplifier sounds.