The Ultimate Marantz, Superscope, UNIX Boombox Thread

Discussion in 'Chat Area' started by Mister X, Apr 13, 2018.

  1. Mister X

    Mister X Moderator Staff Member

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    Found on Mercari Japan, a very old Standard Boombox, maybe from just before the Marantz Takeover? The Standard KR-1600J is for sale now! I think a corrosion filter is automatically applied to these sales, you can see some around the MIC, there's probably more.


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    Last edited: Jan 23, 2026
  2. zefram

    zefram Member

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    Recently inherited this beautiful CRS-2204

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    Plenty of plugs: i/o + ext antennas + ext speakers:

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    It has an issue in right channel: no sound from speaker in radio mode ( the Vus both channel working), only loud hum in tape mode.

    IMG_20260123_081639.jpg

    The mech, curiously to me, is working but I think in need for lubricate.

    Next I'll start servicing this beauty reporting my progresses in a new thread as a self-tutorial.

    Sorry for bad quality in the above pictures (i know someone somewhere here did post good tips & tricks in taking good pictures of our portables… see https://walkman-archive.com/articles/photographing-gagdets-focus.htm)
     
    Last edited: Jan 23, 2026
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  3. Mister X

    Mister X Moderator Staff Member

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    Great project! I'm getting to the point where I can't find some of my cool ones, I'm assuming the "4" has four radio bands?

    In case you don't know, the hum is usually the "recording bar" inside, sometimes hitting record several times will work it out. Member Cassette2go has talked about it for years and posted this video. I've also found that 95% of the time the pegged meters has to do with the "FUNCTION" switch, give that a good cleaning with a contact cleaner. Over here DeOxit is very popular, the EU tends to have other brands. When I rebelted a CRS-4000 I dropped a tiny plastic isolation washer and didn't think much of it. The unit hummed until I figured it out and reinstalled it, it was isolating the transport from the metal chassis.

     
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  4. zefram

    zefram Member

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    Indeed MisterX! Four bands
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    Thanks for the reply and for the link!

    I'll start to clean all out/inside. It was sitting in a my father in law kitchen for about 20 maybe 30 years asking for a single cassette, instead tons of dirt, dust, vapours. I think I'll be in need for a lot of oooohhmmmm! to be able to enjoy again cassettes with it!
     
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  5. Mister X

    Mister X Moderator Staff Member

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    Most Marantz/Superscopes have a very mature sound, a little more than contemporary boomboxes from the late 70's, even these midis, but of course they were also 2x the price. Multiband always looks 100x better than just AM/FM which were more popular in the USA.

    Good luck cleaning it up, they look great when fresh.
     
  6. Mister X

    Mister X Moderator Staff Member

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    Some tape decks from 1976, I bet students thought taping class lectures was the fashizzle back then. USD


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  7. Mister X

    Mister X Moderator Staff Member

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    1974, I don't know when Superscope Branded Equipment started but I think it was around 74?


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  8. Mister X

    Mister X Moderator Staff Member

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    1981 France, the exchange was a little under $6 USD to each Franc, so the CRS-3504 would have been around $430 USD. My Marantz "PMS" 3500 is labeled Marantz, I think the EU Model was branded Superscope.


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  9. Mister X

    Mister X Moderator Staff Member

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  10. MarylandUSA

    MarylandUSA New Member

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    After retiring in 2025, I needed a decent portable cassette player or recorder to digitize my memories from the 1970s through 1990s. So I bought a Sony TC-45 (mono, 4 AA cells, 1972), the largest, heaviest, highest-specced one-handed recorder in Sony's TC (Tape Corder) series. Unfortunately, the belts needed replacing, as I discovered when it started to chew up my tapes. Just as well, because the TC-45 doesn't have a proper Line OUT; just a headphone/speaker jack, which would introduce distortion and noise.

    I then bought a Superscope CS-200 (stereo, 4 C cells) because it looked like the Superscope C105 I used through in the 1970s college. The eBay seller had tested it, writing that "everything works." Everything did work for 3 weeks. Then the Superscope, like the Sony, began chewing tapes. Of course, the cassette whose tape I had to cut free was my most precious tape of all, so I've bought a nice repair kit.

    After two strikes, I vowed that my next recorder would be one that had been rebuilt, with new belts, new electronics as needed, and an internal cleaning. And so it was! I found a Marantz PMD221 (mono, 3 D cells, about 1980) on eBay whose owner had lovingly restored it, for just $165 shipped! At that bargain price, I didn't dare sleep on it: I clicked Buy It Now.

    Here's my Marantz PMD221, shown with all the accessories I've bought to go with it. Every accessory was bought "used" except for the USB digitizer and the RCA splitter cable. Clockwise from 12 o'clock:
    Marantz_PMD221_kit_Paul_2126x1744.jpg
    • Marantz PMD221 mono cassette recorder ($165 shipped), Marantz PMD vinyl case ($20 shipped), and hard-to-find Marantz PMD shoulder strap ($31 shipped).
    • Marantz DA-36 AC adapter ($26 shipped), the hard-to-find Made in Japan original version, not the cheaper Made in Taiwan DA-36 that came later. (You can tell Japan from Taiwan at a glance: If it's made in Japan, the printing is read while the adapter is horizontal, as shown here, not while the adapter is vertical.)
    • Behringer UCA222 stereo USB digitizer (about $27 shipped, as I recall), from Sweetwater.
    • Videoraser VX-1601 tape eraser (about $30 shipped)---at 12 amps, the company's most powerful handheld eraser. It seems to weight about 4 pounds.
    • GC Electronics 40-watt head demagnetizer ($20 shipped), chosen for nostalgia: I bought the same model more than 50 years ago.
    • YYTCG 0.5-meter RCA splitter cable ($20 shipped) from Amazon.
    Oh: And nickel-metal-hydride D cells. I already had a high-end Miboxer NiMH charger.

    The only Marantz accessory I didn't buy was the car charger (CA221PMD). Only one seller in the world seemed had it, and he wants $57 shipped (new old stock). Despite my fear of missing out, I just couldn't justify paying so much money for an accessory I'd never use.

    Thanks to all of you who helped me learn about Marantz, Sony, and Superscope portables along the way.

    The final piece--the RCA splitter cable--arrived today. I'm finally ready to resume digitizing old voice recordings.
     
    Last edited: Apr 16, 2026
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  11. Mister X

    Mister X Moderator Staff Member

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    That car charger must be super rare, I don't think I've ever seen one. I do have a Sony Version with the funky keyed plug on one end but it only works on Sonys as far as I know, 5 bucks at a ratty thrift store still in the box.

    I was getting those mono Marantz a few years ago for dollars, I have a small stack, now they go for decent money. I've heard the guitar and recording guys like them to create effects. I just learned that George Lynch, one of my favorites, ran his guitar through something like a Tascam 4-Track Recorder to get his iconic sound.

    Good luck with your project! I'll have to take better care of my straps, they're actually worth more than I paid for the units.
     
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  12. Mister X

    Mister X Moderator Staff Member

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    I was looking up the specs on MarylandUSA's Unit and found this James Bond Marantz and it looks like they might have actual Marantz Rotary Dials on the bottom.
    https://www.ebay.com/itm/336366479167?


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  13. Mister X

    Mister X Moderator Staff Member

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  14. Mister X

    Mister X Moderator Staff Member

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  15. Mister X

    Mister X Moderator Staff Member

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    gagaeyes posted this back in 2012! The Marantz CRS-8000 for a silly money 115,000 Yen. I had no idea this had a dual deck system and remember most of these had a machined aluminum face.


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  16. MarylandUSA

    MarylandUSA New Member

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  17. Mister X

    Mister X Moderator Staff Member

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