IN STOCK ONLY CHROME Phase Plugs for Bowers Wilkins B&W 600 Series, HTM and S2 ALUMINUM PHASE PLUGS PAIR, POLISHED and PLATED Does Fit to: 683, 684, 685, 686, 683 S2.HTM61 S2, HTM61. CM CENTRE 2. High quality aluminum phase plugs, The aluminum phase plug is suitable wherever plastic plugs can be unscrewed. The plastic phase plug is then simply replaced with one of our high quality aluminum plugs. It is not for nothing that B&W uses aluminum phase plugs in the 805 Signature. Through the use of aluminum plugs, the frequency response, which is already very linear for simple plastic plugs, is jointly linearized and heat dissipation is maintained. Sound is further separated from the speakers, and further enhanced naturalness makes it even clearer and more accurate. Phase plugs prevent opposing diaphragms from cutting just as reliably. At the same time, when using aluminum plugs, better heat dissipation in the area of ??the pole core increases the load capacity and counteracts thermal changes in sound. The dynamic midrange driver works with particularly low distortion when a copper layer covers the inner pole of the magnet, while the aluminum phase plug provides dispersion of the higher frequencies. So only the right combination of materials does it. The technical explanation is trite: the combination of the two materials linearizes the inductance of the voice coil. This results in a dramatic reduction in distortion.

B&W 685 Phase Plugs Original. Taken off when first unboxed so unused. B&W 685 phase plugs – originals from a genuine set, these are from the black and cherry editions so finished in the soft-touch matte black paint. No idea if these will fit any other B&W’s or any other makes for that matter.