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Thank you Jim! Indeed, you were instrumental in my progress; however, do not quiz me a year from now. :rolleyes:

Thanks for the contact; when I get it out of the box and check its function, I'll followup.

Makes sense now! I'm assuming this is newer than my BILs 60 & 70 vintage stuff since the box has several languages on it; which was probably not standard printing in those days.

Yes, lovinthehd - now I get it; I was reading one side of the box which is probably not English, just appeared close. It is actually, DENON DRM-700A STEREO CASSETTE TAPE DECK; haven't gotten it out of the box yet; hope it is not another repeat of the Marantz rcvr; looks good but doesn't work in...

To all who helped get me to this place in my audio component education, THANK YOU VERY MUCH! Especially, lovinthehd, and TLS Guy for all your insightful feedback and research. This is truly a professional forum, helping beginners like myself. It's clear that each of you love the world of audio...

Had a good day today after a thread of 90 posts, this audiophyte (did I really say audio?), plugged in four (suspect) JBL concert speakers to a BGW amp with an audio source of JVC KD-V6 playing orchestral music (Christmas no less; didn't have time for the "101 Strings" cassette). Yes, I heard...

Oh no . . . Do you mean get the screw driver out?

Sterling - I now have one Marantz 2270, bequethed to me, that because of the help I've gotten on this forum in prodding it along; and coming to appreciate its solid controls and beautiful lighted display, I would like to keep it if the repair would not be costly. . . . I was just minding my own...

TLS Guy - I'll probably never know if the midrange and the woofer are JBL but the 2370A horn is even labeled JBL. :rolleyes:

SUCCESS (partially)! Hooked the JVC KD-V6 Stereo Cassette Deck to the BGW 210 amp, and slowly turned up the deck's Output, and what do you know - music to my ears. :) Unfortunately, the 30 watt Portable Sonocasters' sound awful; they buzz. Nonetheless, tomorrow I go to storage and will connect a...

I hear what you are saying. :rolleyes:

Looking through the cabinet screens, the drivers appear to be the same, at least in size and coloration. As mentioned in the early postings, the only driver with a visible model number is the JBL 2370A horn, found topmost in each of the four. lovinthehd, early on asked me to open the cabinets...

"Since the output stage is direct coupled, protection needs to be robust . . . most likely cause is a power transistor" - Sounds logical based on the symptoms. "Do not take that unit to a recycling center." Please explain.

TLS Guy - this is more good info; I like being educated. Yes, I naively I do think they are worth more. But a high price is not my main reason for selling. JBL concert-style speakers: "seldom would a speaker like that be much good" but if they sound good (relative to the listener and the...

Good info TLS guy - am not pursuing repairs; either sell. if functioning. or the various items go to the electronic recycling here in CA. BTW, the Marantz rcvr is a beast at 40 lbs. P.S. Just had an afterthought, since you are knowledgeable in the internal working components; could I test if...

NO sounds, static . . . only lights and words on the display indicating that the Selector knob was on tape, aux, am/fm, etc., and meter needles moving.

Okay Jim - that's my next step. Using what is available to me from my BIL gives me an idea that it functions. Regarding speakers, the JBLs are in storage about 35 miles away; so, I am using small 30 watt portable speakers for this testing in my house. Once this arrangement produces sound, I'll...

lovinthehd - Rethinking your suggestion to work the controls, how about "deoxit" which I see mentioned on this site. I'm assuming it deoxidizes electrical contacts; not an omega-3 fatty acid antioxidant? ;) Perhaps that could hold an answer to why no audio out to speakers?

Okay, a new direction. I started this thread to simply power four (not necessarily at the same time) JBL concert speakers, determine that they work and sound good, and then determine their value for sale. They take a large footprint where we now have them and would be glad if someone bought them...

Thanks - I probably have pressed most of the buttons except the filters because there was no sound to hear channel conflicts.