Ok, Thx :)

Note that the three driver S45 is not a true 3 way speaker, it uses the mid driver as a phase link speaker, used to fill in in a dip in response that occurs where the woofer and tweeter overlap. I think this design approach was way ahead of its time, B&O has always been good at addressing loudspeaker design issues others seem to ignore.

So, personally, I'd go with the older phase link models if it were me. But if you can listen to them your ears should guide you. Also, if memory serves the later two driver models used foam surrounds on the woofers which have likely deteriorated whereas the older models used rubber surrounds.

Thx for your insight 😊 Is it any way I can identify the non-foam version version without splitting them open? Serial # maybe...?

You do however need to remember that the S45.2 (the desirable 3 drive unit model) is now getting quite old - the capacitors in the cross over may be aging and the magnet on the woofer can slip, causing the drive unit to seize. This is fixable but will either require some work or some money!!

Having said that, the S45.2 is possibly one of the best small speakers available at what is still a reasonable price. The later S55, which is a two grille model, and the MC120.2 are also super small speakers and likely to be even cheaper.

Ok, thx. I'm a newbie to B&O equipment - are these components, should I need them, available through eBay? Maybe slightly off topic, but maybe someone can recommend a LP player setup for these speakers? I've been considering the Beocenter 7007.

The Beocenter 7007 and 7700 are the two best B&O LP based music centres. They will need maintenance so either buy a restored one or be prepared to get work done - They will need new belts for the cassette player and the electronics will often need some of the components replaced. A good match for S45.2s.

What's actually the difference between model 6302 and 6312?