Optimus was/is a Radio Shack brand. Nikko made nice inexpensive receivers in the early 70's. Their tuners were excellent. I had a nice Sherwood receiver back in the very early 70's. I remember Stereo Review gave it a glowing review so I just had to have it. I traded a Sansui receiver that I had towards the Sherwood. The Sansui sounded much better.
Advent has been resurrected with different speakers. Remember Bozak? I had a pair of them back in the mid to late 70's. What about Rectilinear speakers? I think they were made in the Bronx in New York. I had a pair of 3a floor standing speakers which I bought off my college roommate for 200.00. When the newer and improved upgraded 7's came out, I stupidly sold the 3a's. That was over 39 years ago and I still regret it to this day.
Advent has been resurrected with different speakers. Remember Bozak? I had a pair of them back in the mid to late 70's. What about Rectilinear speakers? I think they were made in the Bronx in New York. I had a pair of 3a floor standing speakers which I bought off my college roommate for 200.00. When the newer and improved upgraded 7's came out, I stupidly sold the 3a's. That was over 39 years ago and I still regret it to this day.