The larger Q floorstanders are the Q750 and Q950

The 750 uses a 6.5" UniQ unit and a 6.5" bass unit.

So why are there 4 round bits Michael?

That's because the top and bottom ones are ABRs, which stands for Auxiliary Bass Radiator.

ABRs aren't driven, they are passive devices to extend and deepen the bass performance while keeping it under control.

This a technique Kef have used in successfully in several models over the years.

Q950 looks very similar, in fact from a photograph it's impossible to tell between them

See what I mean!

All drive units are now 8" diameter so the whole speaker is 5" taller and 1.5" wider.

Listening between them is very inter esting, the Q750 from the Q550 is a much bigger warmer sound with a real easy sound to them .

It's not laid back though as it still has real punch and dynamics.

Changing to the Q950 has the same characteristics and also goes deeper again in the bass. At high volumes these can really kick it out.

Radiohead at full volume? Yes please

Low volumes are the most clever part where the increased dynamic capability means that they stay realistic at these low volumes.

You might think it's counter intuitive that the larger speaker is superior at low volumes but it makes sense as it is related to the surface area of the drive units.

Where does this leave us?

Well at £ 1150 the Q750s are excellent and at £ 1430, strange price point, the Q950s are better overall and especially if you play it loud.

A better question is how do these compare to the £ 1499 R500?

The R series are clearer and better but have less bass output until you go up to the £ 1999 R700

I'd take the R series every time, but it's your money not mine, and I'm really happy to let you hear the difference for yourself

That's what we're here for