Connecting Bose 901 Equalizer to a receiver or another graphic equalizer

Greetings!  I've read a lot of the discussions posted; contacted Bose, Yamaha, Sony, and Kenwood, and still can't figure out how to reconnect my 901 EQ to my system.  Before I moved, the EQ/speakers were connected to this system and worked wonderfully.  My receiver does not have pre-outs but it does have tape play/record and so does the Kenwood EQ.  If someone can assist, I'd be very grateful.

I see a lot of people do not like the 901s.  When I graduated high school and joined the Air Force in 77, I purchased 3 pairs of 901s in Okinawa JA because at that time I loved them.  The pair I kept all of these years are the special edition oak cabinets on stands.  Several years ago, I had the speakers (tweeters) rebuilt.  I have an emotional attachment to them now.  Thanks for your help!