Stunning looks. I'm a sucker for analog meters. And the lights! Gorgeous. :thmbsp:
In the beginning ... there was bass.
I remember growing up, there was that infatuation with boom-boomy bass. Reminiscent of old-time radio and jukeboxes. And it was even more important before subwoofers were common. Heck, people were just coming out of the dark ages of console stereos. Always played with tone controls. Bass masked the imperfect shrill sounds of imperfect systems. As tastes became more sophisticated, there was a movement for more accurate sound. Not like audiophiles today who eschew anything but the purest unprocessed sound.
Come to think of it, there's still a young generational infatuation with bass.
I think Radio Shack just built in a wide frequency range. Although some might say exaggerated. I remember my old STA-250 was very punchy compared to some of my later receivers. And I recently got an STA-77 and it sounds very warm and smooth. Almost old-time radio like. Yet they both sound very detailed in the mid and high frequencies.