for those who may not know the history of spendor, there are few key points, in short form, that are worth noting:
- the hughes family spencer dorothy and son derek owned and ran the company from inception in 1969 to 2000... they developed all sp series speakers, descendants of the bc-1, one of the initial bbc speaker commissions - derek was technical director after dad spencer died too young
- in 2000 the company was sold to philip swift (who founded uk audiolab electronics), swift invested in the company and developed the modern a and d series speakers, to his sonic tastes, which, if you recall audiolab’s sound, was more upfront and lively -- he did this while smartly maintaining and incrementally improving the classic series (the original line) with modernized materials for drivers etc etc - swift is a good businessperson, expanded cabinet and driver manufacturing, serving other makers...
- the surviving son derek hughes is no longer affilliated with spendor the company, has worked for years as independent contractor/consultant and was most recently involved the with the lovely stirling broadcoast bbc ls3/6 - basically an up-market spendor sp1/2 with modernized drivers for better power handling and slightly greater resolution
understanding this helps understand why today’s spendor has their classic and modern (a/d) lines, and why there is such a divergence of sound signature and presentation
here is a useful article for those that are interested ... https://www.spendoraudio.com/wp-content/uploads/Hi_Fi_Choice_Insider_feature.pdf
The newest A series sounds more similar to the older Classic series than it does the D series.