I had a chance to audition the Kilpsch RF35 at a local London Drugs Store before I commited to the M60s. I recall loving the overall sound with them. It was pretty detailed and accurate. However if you dont like bright speakers the RF35 is a no no. They say the M60's are also bright speakers but IMO they are just right. Soundstaging on the M60's are amazing. A week after getting the M60's I went back and tried the RF35 and I'm glad I bought the M60's.