Model 475

• Positioning: A portable amplifier designed for balanced headphone use and mobility.
• Description: Features an updated USB Type-C connector for external DC power, gold-plated Nippon Dicks connectors, and a mode change-over switch that supports both balanced and unbalanced output. Compared to the stationary models, its battery-powered portability makes it ideal for small rooms and on-the-go listening at an accessible budget, though it may offer fewer high-end features than the larger desktop amplifiers.

Model 433

• Positioning: A balanced amplifier aimed at delivering quality audio from both balanced and unbalanced sources.
• Description: Blends sound quality inherited from higher-lineup models with a reliable output circuit originally used by a major broadcasting station, ensuring refined performance. In contrast to the portable model and the flagship series, it offers a middle-tier option that suits everyday listening needs.

Model485

• Positioning: A balanced amplifier that updates a legacy design with added modern connectivity.
• Description: Incorporates an extra 4.4mm Pentaconn balanced output terminal and a switch to select balanced output, enhancing its connectivity options and flexibility. Compared to the lower-priced models, it provides additional features typically found in higher-end amplifiers.

Model465/465S

• Positioning: A high-end amplifier featuring independent twin power channels for separate left and right audio.
• Description: Uses independent left and right power circuits with twin monaural design and offers options like pure gold or rhodium plating in the 465S variant, delivering controlled sound with a clean, stress-free character.