How to Open the Sonus Faber Olympica IIIs (Please Help)

It seems strange that you would have an expensive pair of amps like that and not know what pre to use with them.

@roxy54 strange indeed, on top of that there is a binding post plate on the back of the speaker with six clearly seen bolts/screws.

I’ve always got the best results with Audio Research preamps for my Pass amps… notably better than the result with Pass preamps. With ARC still detailed but much more natural and musical.