I sold vector research receivers briefly about 30 years back aT Tech Hifi in the NY/NJ metro area.
It was decent sounding stuff and somewhat popular for a while as a step up from the Pioneers, Kenwoods and TEchnics receivers of the day for a bit. It had a different looking dark brown front panel aesthetic that was unique but I do not recall ever being particularly taken with anything really unique or better about the sound. Not in the same league as the better Tandberg, Nakamichi, Onkyo, or Yamaha receivers of the day as I recall.
I also do not know how well these were made. You do not see many around in nice condition these days for sure.
It was decent sounding stuff and somewhat popular for a while as a step up from the Pioneers, Kenwoods and TEchnics receivers of the day for a bit. It had a different looking dark brown front panel aesthetic that was unique but I do not recall ever being particularly taken with anything really unique or better about the sound. Not in the same league as the better Tandberg, Nakamichi, Onkyo, or Yamaha receivers of the day as I recall.
I also do not know how well these were made. You do not see many around in nice condition these days for sure.