The Tandberg TH-18 is a model of headphones produced by Tandberg between 1978 and 1980. Originally priced at approximately 198 DM, these headphones feature a closed-back design aimed at providing excellent sound isolation and a rich audio experience. Known for their distinctive build quality and sound characteristics, the TH-18 headphones cater to audiophiles seeking a vintage sound signature. The closed design helps in reducing ambient noise, making them suitable for immersive listening sessions. They are part of a broader product line that includes other models like the Tandberg TH-12. The similarities in design and performance among these models reflect Tandberg's commitment to quality audio production during this era.