Hello. I noticed a new member in here also from Portland Oregon. Hello I am from Portland Oregon and have my dad‘s old Quadphonic 4-way 10 speaker High-Fi and some other components. None of the electronics have been powered up in the last 21 or more years now although the loudspeakers and surrounds and twin subs have been reformed in anticipation of turning on the old stack and listening to some of the LPs that are made for hifi systems like mine. I’m looking for information and more places that can do any work on them that maybe needed over the course of testing components proper operation. Nakamichi tuner and equalizer and there is a technics turntable and unknown arm and cassette. The rest is Audionics of Oregon components and there is about a dozen different units. Anyhew I’ll be in and out and sometimes it takes me a spell to full circle through the interests and get back to this long overdue project. Patience please if needed I’ll be back here.