YES I HAVE A SONY STR-AV770X RECIVER. AND A PYLE PRO PDG 4000 POWER AMP AND I WONT TO RUN MY BOSE 901 SERIES VI SPEAKERS WITH THE ACTIVE EQULIZER FOR STEREO MUSIC ONLY AND USE MY SONY RECIVER FOR THE VOLUME CONTROL SO HOW IS THIS ACOMPLISHED THANKS.

There's no reason you can't use the 901's in ALL of your audio experience.

Try this:

Remove the short plugs from the Adaptor jacks. They claim you can record some of the effects (surround, dbfb and tone) from these jacks so that implies it's late in the preamplification path. The question is - did they place it after the Volume Control, too - as many other receivers with jumpers do?

Take an RCA pair from the Adaptor Out to the 901 Active EQ's Line IN; then the EQ's Line Out to a separate amp's Line IN. Attach the 901's to the new amp.

Because we don't know if the Volume Control is in the path at this point, find yourself a CD with a long, low fade-in just in case the signal is at maximum power here. Be ready to Pause it if it gets too loud.

If the Volume Control affects it ok, then get yourself a pair of RCA cable splitters and place them where the Adaptor Jumpers were with the extra leads going to the cables we ran to the 901 EQ at first. That way the receiver still keeps the program internally for its own speakers and the 901's get it, too, but without modifying what the receiver sees.

If the volume control on the Sony isn't in the Adaptor loop you'll have to use the Pyle's volume control. But you could still have the speakers that are directly attached to the Sony useable at the same time.