I sold Kefs for years. They sound very good with lees than a 100 watts. The bass comes to life with power. You think you are listening to a different speaker regardless of volume with power
The Kefs absolutely need power and not just brute force...you want an amp that can swing between 2-8 Ohms because that is the R3’s performance range. I have the R3’s paired with a Parasound A23+ power amp great match but since you are seeking an intergrated the Parasound Hint 6 will serve you well and save you a ton of money over most everything else being suggested here.
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