All I can say is that I have speakers that are 106db/watt efficient. I use a 50 watt tube amp for the woofers (which is overkill) and a 5 (five!) watt for the highs in an active bi-amped configuration. I can tear down the walls with this amount of power. If your main speakers are really 101db/watt efficient, you can draw your own conclusions.

[This message has been edited by soundhound (edited February 26, 2004).]