Key Differences

Impedance levels vary (38 Ohms vs 35 ohm), which can affect compatibility and audio output when used with different devices. Both headphones are equipped with capable drivers that deliver balanced sound output suitable for music, calls, and entertainment. From a usability standpoint, both models provide a reliable and premium headphone experience. The frequency response differs (10 Hz - 25000 Hz vs 18Hz - 25KHz), which can influence how well the headphones reproduce lows, mids, and highs. There is a noticeable difference in weight (NA vs 240 GM), which may affect comfort during extended use. Koss PRODJ100w and Audio Technica ATH-AVA400 offer different noise cancellation capabilities (NA vs Sound Isolation), which can impact how effectively they block external noise. Both models support modern Bluetooth connectivity, ensuring stable wireless performance with compatible devices. If you're comparing Koss PRODJ100w and Audio Technica ATH-AVA400, both models offer a strong combination of sound performance, comfort, and modern wireless features. Both headphones offer solid battery performance, making them suitable for long listening sessions and travel.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.