Finally after owning my pair of re-Quest speakers for the past 20 year, I'm going to post up a review. I purchased my set new back in 1998, had them powered thru an old onkyo integrated amp at the time, but over the year the electronics in the system had been upgraded many times and my setup is currently running bi-amped with bryston 7bst for each of the panels and a 4bst for the subs. Should be more than enough power for these, probably close to 1000w RMS to each speaker. Still one of the best speakers I've heard, classic electrostatic sound, airiness, the sweet mid-range that isn't present in any other speaker out there. The bass had always been lacking with these speakers so those kick drums never had the punch you get at a concert but the bass that is produced is smooth, detailed similar to what you would hear from a British speaker system, eg meridian. The newer electrostatics do improve in the high frequency details, improved transparency, but the difference hasn't been light years or even worth a 20k upgrade. 20 years later and everything in the system had been changed but for some reason these re-quests are still part of my system. When it comes to reproducing vocals no other speaker can match it without spending at least 20k, but at that point I'll probably need to spend that much in electronics upgrades. I would highly recommend listening to your best vocal tracks on this speaker and you'll see what I mean, been with this same speaker for 20 years and probably will spend another 20 years with it. My set is still running on all original panels and woofers.