Reviving an old thread. I got a pair of 807W's a few weeks ago. Last night, I plugged a Nad 2400THX integrated (seems to be conservatively rated at 100wpc) into them and I couldn't turn the volume up much past 1.5 notches (around 7:30 on the clock) before making the volume too loud to listen to! These speakers are EXTREMELY efficient. One of those low wattage tube amps would really make them sing, IMHO. When I use this same amp with my Kef LS50's, the volume know needs to go much higher to achieve the same volume levels. The 807W's are a nice speaker. Enjoy.
