Philips N6330 Sextett. Praised by many as the best headphones ever made by Philips. In the 1970s there was a collaboration with AKG which resulted in a class headphones that is as yet hard to beat in this price range. The N6330 is in very nice condition, the shells still have a nice round shape. The headband still has the tension as if it just rolled out of the factory. What these headphones often miss are the brand and type plaques on the side, because the screw to open it is hidden beneath them. This specimen still has the plaques on both sides. Sound is sparkling fresh and it has a very tight bass. In short, this is a unique opportunity to acquire this legend in top condition! N6330 dynamic HiFi Stereo headphone Frequency Range: 16 - 20,000 Hertz. Nominal Impedance: 2 x 600 Ohm Sensitivity: 94 dB SPL at 1 mW. Max. power input: 200 mW DIN.