Very nice boombox! This Sanwa 701B looks very similar (almost identical) to the Lanico L-818E, one of which is now in my boombox collection. Here is a video of it: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-avP92X6bfSk.html According to the guy that I bought mine from, it is basically a Lasonic L-30K.
Yes the Lanico L-818E is identical to the Sanwa 701B, they are again a version of the Lasonic L-30K, I didn't know that anyone else besides me had the idea of adding 2 more speakers, haha, and even connected it, I only added it because of the optics that don't work, I'm not an electrician, but the Russian seems to be one to be good ;-)
@@CrockettsHobbyKanal I had the LASONIC-L818E but since 2004 it was smoking!!! Lasonic was the laugh version of this radio that was the reason that my own device was smoking!!! I had the laugh version!!!