I'm more interested in the quality then the quantity like pianist so how bout it Julie
I think you'd prefer them in all ways to the PFE (unamped PFE). I had to use a lot of EQ on my Sony to get the PFE's to sound acceptable to me. But the CK10 is fine with just some bass boost. Quality of bass is honestly not much different to the PFE (with no EQ), but I think the CK10 respond better to some boost since it adds a little more depth and warmth. You won't get the C710 bass from them though, no way Jose
But if you like a lot of treble sparkle, and can live with the reduced bass impact, then I think you'd like them a lot.