KHV-ES

• Positioning: Entry-level headphone amplifier designed for budget-conscious users.
• Description: Offers a straightforward circuit design with low noise and effective impedance matching. Compared to the KHV-ESD and higher-tier models, its simple setup and essential connectivity make it a basic yet efficient choice for small rooms and tighter budgets.

KHV-ESD

• Positioning: Versatile headphone amplifier combining analog and digital inputs.
• Description: Features an integrated digital-to-analog conversion mode that enhances signal clarity and minimizes distortion. Compared to the entry-level model and the more refined HPA-100, it provides extra functionality that suits users needing both traditional and digital connectivity.

HPA-100

• Positioning: High-performance headphone amplifier and preamplifier aimed at refined sound quality.
• Description: Features robust power output with selectable sound modes that deliver clear and detailed audio. When compared to the KHV series, it offers improved build quality and versatility.

HPI-200

• Positioning: Hybrid amplifier that integrates headphone amplification with line-level preamplification.
• Description: Uses a unique analog-digital hybrid circuit to improve channel separation and reduce distortion. Relative to the HPA-100 and HPI-300, it occupies a mid-range spot with balanced build and functionality.

HPI-300

• Positioning: Flagship hybrid amplifier delivering top-tier performance for high-end audio setups.
• Description: Integrates advanced digital controls with high-current analog stages to ensure very low distortion and a wide soundstage. Compared to the HPI-200, it stands out as the premium option, offering advanced features and superior build quality.