DENON SC-R99 in collectible condition!

I offer a collector's copy of the top model from Denon. This speaker on native suspensions has not changed anything. This is a speaker system that provided technology to suppress unnecessary body vibration. First of all, the Double DAS (Dynamic Acoustic Scatter) structure was adopted. The ideal option is a core with the original Denon case, which combines heavy porous ceramics and "does not generate a standing wave", "no board vibration". In the DA double S-shaped structure with a structure that combines the baffle, top plate, double-sided board and outsole with super compound porous ceramic, with the weight of porous ceramic applied to five boards. , the vibration of the entire board is controlled by strengthening the combination of boards. Thus, the woofer frame will be attached to a 70 mm rigid baffle (40 mm baffles + 30 mm porous ceramic) of the entire thickness, and the frame and cabinet have realized a very precise piston action even at a short-term height. power without being indifferent. In addition, the porous ceramic diffuses and absorbs the standing wave generated inside the cabinet, and the quality of the low-frequency sound region is improved. The RMM (Rigid Mount-Monocoque) structure is adopted as the second. The tweeter embeds the frame, magnetic circuit, etc. into the baffle and makes them a sealed construction, and the loudspeaker is rigidly mounted "only 65mm" from "40mm baffle + 25mm subband". The rate of change and vibration of the magnetic circuit and the frame due to the response during this driving of the diaphragm is reduced, the driving force is simply transferred to the diaphragm, and the stability of the signal-to-noise or sound ratio is improved. The 32cm corn type woofer is adopted as a woofer. The boron fiber diaphragm which uses the boron filament before the appearance of the world is adopted as the diaphragm, and it controls the magnetic circuit of using a barium ferrite magnet with a direct descent thickness of 20mm by 180mm. The connection of boron filament and the manufacture of carbon paper was made from the back of the carbon filament (crossing carbon) that crossed the fabric, and the speed of sound propagation was increased by the high elasticity and quantitative rigidity inherent in boron and carbon, and materials of various kinds are bonded together, and this diaphragm material provides internal losses. The 6.5cm dome shape squaker is adopted as the inner area. The new alpha boron diaphragm technology is also applied to the noise suppressor, it is light and moderate internal loss is provided by boron compound and titanic acid plasma welding based on hard high titanium. The diaphragm is supported by a Than Gen Shal edge and driven by a large size strontium magnet with a straight escapement thickness of 156mm equal to 20mm. In addition, in order to control the back pressure of the diaphragm, while preparing the pores from which the air comes out in the center pole and the top plate, and