Those are great-sounding speakers! I heard them hooked up to an ARC tube amp/integrated. I had the guys put on my Grand Funk Railroad's red CD (with Got This Thing On The Move, Mr. Limousine Driver, etc.). I was amazed at how good they sounded and how much bass they put out! Those little guys are one of the most impressive bookshelf/monitor speakers I've ever heard! I wish I could buy them but I can't do it right now.