Hi, if anyones looking for high sensitivity drive units I have a pair of Stephens Trusonic 80FR 8 inch full range drivers approx 97dB, as reported on the James Mellhuish site they are better than the legendary Western Electric 755A, I know this because I've owned a pair, as well as Goodmans Axiom 80, 201, 300, 301, 401 more Lowthers than you can shake a stick at! I have the TS data for them, also included is a pair of new unused Audax PR120IL HF units which go very well with the 80FRs for the very high frequencies. £395 or 'interesting' exchanges. Regards Meeko