I’m pretty sure the later Harbeth models use the newer RADIAL drivers. You can Email Alan Shaw to verify this!
https://www.harbeth.co.uk/
You can give the importer ( Fidelis ) a call to answer your question!
https://www.fidelisav.com/
https://www.harbeth.co.uk/
You can give the importer ( Fidelis ) a call to answer your question!
https://www.fidelisav.com/