The Sennheiser HD 455 headphones are designed for audio enthusiasts seeking clarity and comfort during extended listening sessions. With a well-balanced frequency response, they excel in delivering detailed sound across the spectrum, although some users note that they may lack the deep bass presence found in other models. The headphones are acknowledged for their replaceable parts, allowing for longevity and maintainability, with common replacements including cords and earpads. Users have remarked on their efficient performance with portable audio devices but recommend pairing them with quality amplifiers to fully appreciate their sound capabilities. The open-air design of the HD 455 allows some ambient sound to enter, which can be beneficial for awareness in certain environments, but also limits sound isolation. Overall, they are celebrated for their comfort and build quality, though opinions vary on their bass response with some describing it as adequate without being punchy. Ideal for home listening, they may be considered less suitable for portable use due to their larger design.

The Sennheiser HD 455 headphones are designed for audio enthusiasts seeking clarity and comfort during extended listening sessions. With a well-balanced frequency response, they excel in delivering detailed sound across the spectrum, although some users note that they may lack the deep bass presence found in other models. The headphones are acknowledged for their replaceable parts, allowing for longevity and maintainability, with common replacements including cords and earpads. Users have remarked on their efficient performance with portable audio devices but recommend pairing them with quality amplifiers to fully appreciate their sound capabilities. The open-air design of the HD 455 allows some ambient sound to enter, which can be beneficial for awareness in certain environments, but also limits sound isolation. Overall, they are celebrated for their comfort and build quality, though opinions vary on their bass response with some describing it as adequate without being punchy. Ideal for home listening, they may be considered less suitable for portable use due to their larger design.