Dak

The TF-600 has 2 6.5" woofers and 3 .75" tweeters (Vifa)

H20- The TW7's are the rarest of the early TW series. There were TW1's and 3's with the chief difference being the size of the woofers. The 1's used 6.5" woofers the 3's used a 8" woofer and the 7's used a 9" woofer. They would probably sell for around $300 plus in the right environment.