Schubert, could be. Check the drivers very carefully. Make sure they are from Thiel. Some buy beat up speakers, put different drivers in and dump them on unsuspecting buyers. The drivers might appear to be off the shelf parts, but Jim Thiel often had customized lots just for his individual designs. The cross-overs were adapted to these customized drivers. Note if the surrounds are similar and if the screw hole patterns are properly symmetrical. Use a photo of known samples as a base line. Lower the volume and listen to each driver up close and individually. The grills on the CS 2’s are particularly important on this model, as they are shaped to work with the baffles for the designed dispersion characteristics. If you notice paint removed from the baffles during inspection, don’t worry, Thiel used automotive tape to help keep the grills attach to the baffles. It’s only a hidden cosmetics issue and new tape will bring them right back.