Recently I hooked up an old Aiwa (1995) NSX-999 stereo system to my Sony Bravia/Apple TV to better the sound of the Sony crappy internal speakers. Sounds so much better but I really have no experience with surround sound. I have one more vintage item and according to my Internet search, these Marantz HD 770 speakers that have been stored in the closet since 1995, have both woofers and tweeters built in. My question is can I safely hook them up to this Aiwa stereo. The speakers hooked up now are 6 ohms and the Marantz speakers are 8 ohms. Currently these 6 ohms speakers that came with the Aiwa are connected to the Aiwa and then the Aiwa is connected to the audio output on the Sony. And as good as that sounds, I thought maybe the Marantz speakers might sound even better (connected to the Aiwa).