The driver size differs between the two (40 mm vs NA), which can influence sound depth, bass response, and overall audio clarity. The frequency response differs (7Hz - 37,000Hz vs 16 Hz - 22000 Hz), which can influence how well the headphones reproduce lows, mids, and highs. Both models feature noise cancellation, helping reduce background noise for a more immersive listening experience. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel. From a usability standpoint, both models provide a reliable and premium headphone experience. If you're comparing Denon AH-D340 and Koss R80, both models offer a strong combination of sound performance, comfort, and modern wireless features. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. There is a noticeable difference in weight (250 g vs NA), which may affect comfort during extended use. Impedance levels vary (36 Ohms vs 60 Ohms), which can affect compatibility and audio output when used with different devices.

Verdict: Both headphones offer strong performance, and the right choice depends on your priorities such as battery life, comfort, and noise cancellation.