NFB1128P

• Positioning: An entry-level headphone amplifier designed for compact, everyday use.
• Description: It offers a straightforward circuit design that delivers adequate drive for daily listening, setting it apart from the more complex approaches used in other models. When compared with the D28 and the integrated amplifiers in the lineup, it meets basic functionality needs for small rooms while keeping costs low.

HE8

• Positioning: An entry-level integrated amplifier aimed at balanced performance and affordability.
• Description: It brings a clear sound signature and simple yet effective circuit design that gives it a performance edge over the basic headphone amplifier in the lineup.

D28

• Positioning: A premium headphone amplifier crafted for users seeking enhanced audio detail and controlled performance.
• Description: It uses a refined signal path and well-thought-out circuit architecture that distinguishes it from the simpler NFB1128P in the Pro series.

R8HE MK3

• Positioning: A high-end integrated amplifier that stands as the flagship unit in the lineup.
• Description: It features groundbreaking circuit design and a fully balanced topology that set it noticeably apart from lower-tier models like the HE8, offering superior clarity and power output. In comparison with the Pro headphone amplifiers, it provides room-filling sound and extra headroom for versatile audio setups.