BAT lean, nope... I fell in love with bat the first time I heard it about 7 months ago. I heard the new REX tube amp at 80 watts a channel with the REX pre and come home and sold my entire Mcintosh C500T, Mc2301, setup and I now have a totally new system of which nothing was in it 6 months ago. I chose to go with the VK600-M-SE and am truly loving it. These amps are so quick, natural, and put things in there place as well as anything without missing a detail or a beat. BAT is highly recommended out of this house-hold. Enjoy,