Steve,

I've had a 568.1 and 568.2 set to all small analog and mono sub from day one. Never had any pops except for pops out of my Sat box but that wasn't the fault of the 568. I also run all my digital through a 518. Smartlink connection and my 568.2 I don't use a 518 but everything else goes though a 518.

I found that when speaker levels are set above zero in the calibration that you will get pops. I've owned a 568 since they first were released back in late 1999 early 2000. If any channels are above zero...drop all your channels by an even amount so that they are all below zero.

Ron

HT: 568.2mm (Revelation One filter), 518x2, SB3, Bryston 7BSTx3, 8BST, Aerial 10T, CC3, SW12(Qty2) w/SVS AS-EQ1, MK Tripole x4. JVC RS1u, DVDO Duo, Oppo 103 w/Vanity103HD, Sony PS3, VIP 3D Theatre, Acer H5360. Logitech Ultimate Remote and Hub.