Hi Tekdredger and thanks for your response. I bought them used and have had them at least twenty years. No modifications. They do sound quite clean and transparent. Actually I have six sets.

Four sets are in my basement sound-room where I play originally recorded 4 channel live big band material. I bi-amp these use DC300s of varying vintages. Yes I understand the benefits of biamping in that with my DC300s I can increase the bass or treble since there are volume controls. You asked re: crossover etc. I'm using two Crown SL2 preamps in the 4 ch array. Also a pair of stereo EQ's as needed. No crossover. Sounds quite live. Living room with two ES224s [soon to become 5.1 and maybe later 7.1]currently uses an old Mac C28 preamp [for now] which has held up for 30 yrs.

In my living room where Mrs. nfaguy and I will have our (initially 5.1---maybe more later-since this is my initial trip into it)I have my other two sets. I was wondering if there was a way to do this with 990/950 series of pre/pros. This question since I noted that on the 755 (with which I'll start this venture) there are no volume controls. I plan to use them as Front R & L spkrs. I do have a DC300A Series II up there and am running them non-bi-amped now. So I guessI could [as you say] put them on the woofer section, but I was wondering if anyone had any experience with this.

I was thinking to use the 755 as the 5 ch amp for the Center, Front R&L and surrounds. Maybe the DC300 for the other, later.

Thanks for your input. Any additional thoughts from you or anyone are most welcome. Please remember I'm REALLY a newbie at 5.1 and hope to have my 990 and 775 ASAP...
Sincerely
nfaguy...the newbie