The Philips N 6309 is a model of over-ear headphones produced by Philips between 1977 and 1980. These headphones feature an electrodynamic design, providing an engaging listening experience. They were originally priced at approximately 59 DM. The N 6309 belongs to a series of models that includes other variants like the N 6301, N 6302, N 6310, and several others, indicating its part of a broader product lineup targeting audio enthusiasts of the era. The build quality and sound characteristics of the N 6309 have garnered interest among collectors and vintage audio lovers.