I have to say that the set of these I had years ago were the best speakers I have owned. Like yours they were first series and all original. Grew up with the formula four set in our home and they sounded great as well. We listened to everything on these speakers. Have recently decided I wanted to find both the formula four and formula six set. Looking at what they are valued at I know I won't be able to pick them up for the 45 dollars I bought the first set for.