All but the largest Harbeths struggle when pushed. Seems their mid-woofers simply aren’t designed for high power handling. Their similar competitors often sound better and can play louder before compression sets in. Similar to Focals, their midrange tone sounds unnatural and slightly smeared to my ears (another listener called it "glassy"), the main reason for which I don’t understand the hype surrounding the brand and its Radial material. They do manage to have excellent driver integration, and as such, decent imaging. If coherency is top priority, they may still warrant an audition. I honestly feel Harbeth is one of the most over-hyped brands on the market concerning overall performance, especially at current retail prices. But Harbeth is becoming the Bose of British speakers -- they’re such a powerhouse in marketing that you can tell folks that there are better alternatives until you’re blue in the face -- doesn’t matter, they’re going to sell droves of them regardless.