Greginnh, yes a lot of people don't understand that about the 800 series B&Ws until they listen to them with amps that can really supply the grunt. They look at the 8 ohm impedance and the normal sensitivity ratings and just assume things. It's more complex than that. I once has a technical guy at a well respected amplifier company tell me the amp-speaker interaction is a combination of Qts, complex impedance, and sensitivity. Some speakers just need more current to really come alive and it's not always apparent by reading the specs of the loudspeakers. And you don't always know what you're missing until you try various amplifiers.