Of course if you are talking about old Spendor models, they are wonderful sounding and many will say they still do some things "better" than many modern competitors.
But in terms of sheer technical prowess, advancements in accuracy, detail, clarity etc, they have been surpassed.
However Spendor hasn't sat on it's hands. I remember thinking the sound coming from a pair of Spendor D9s (or was it D7?) was among the best at a recent audio show. Really convincing clarity and timbre with jazz saxophone, drums, sense of drive, etc.