Scanspeak R2004/602000 Tweeters, Never Used Recently Bought From Falcon Acoustic. Like new, I still have receipt on email, a few months old. Scan-Speak Illuminator R2004/602000 Ring Radiator Tweeter Scanspeak R2004/602000 Illuminator Tweeter, a member of the superb Illuminator Range. Very compact and excellent for small speaker systems and car audio applications. 3 mounting holes. Black die-case anodised aluminum face plate and black protective grille over the 3/4 Ring Dome with Phase Plug. This tweeter features the “SD-2 Neodymium large magnet symmetric drive motor system. These compact tweeters are fully comparable both in sound output and quality to the larger members of the Illuminator or Revelator ranges. Delivery is normally 7-10 working days if not in stock.