Hi Dave:
Sounds Very Interesting with those DR-9's. I hope that you will be able to get that Upgrade-kit for the other one as well, so that you can drive them Bridged. What are their watts as Stereo Amps??? 50W? 100W? I suppose, that if they are for instance 100W, then you should be able to Quadruple the Amount of Watts to about 400W when bridged, Correct Dave??? I at least remember this from my early hi-fi days back in the late 80'es and early 90'es, where I had a couple of 100 Watt NAD 2200PE's, which nominally were 100Watts in Stereo, but a Whopping 400 Watts Bridged. Together with a couple CW D-9E, They Definately Rocked The Interior Pants off Your Grandmother, jijiji!!!
A guy I know in the states, which I have talked to about His and Mine No. 20.6's, has TWO Pairs of No. 20.6's. One pair he bought around 20 years ago and they have been stored in their boxes for all this time. He wanted to sell them at first for $10.000USD, but retracted the add, since he would rather try to bridge them, so as to get more Power to his B&W 801N's. I haven't heard if he has done it yet, but one of these days, I'll drop him a line or two, to see how THAT project is going.
I would love to hear, how and when you are coming along with 1) Finding the up-grade kit (Have you seached on ebay??? Sometimes you can find some pretty odd and rare things there!!!??? 2) Getting them into Bridge Mode (Is it just a switch on the back of it or is it more complicated than that???
Yeah its fine, to crank up the volume on the Krells, but I Cherish More The Silent Nights at 9-10 O'Clock in The Evening or Later still, where everybody has gone to bed, including my wife and then Gently and Fluently raise the volume JUST ENOUGH, so that you can hear all details. That is why I have invested heavily in cables, so as to hear the finest details at LOW Volumes. That is in MY opinion, what separates a High-End Stereo from a Normal Hi-fi or Low-end Stereo, that you falsely believe, that if you crank up the volume, you'll hear more low level detail...WRONGGGG!!! You'll hear more of EVERYTHING and thus the sound that obscured the low level detail before at LOW volume levels, will ALSO obscure these same low level details, when you crank up the volume...
Lot's o' Luck, with finding that kit, but until then, you can still enjoy the stereo version at low volume levels, where it counts...
Have a Great Audio Day.
Sincerely Thomas.