SK01 Headphone Amplifier and Analog Preamp with Three-Band Tone Controls, Pure Bypass and 3.5mm Line Input

The SK01 combines a headphone amplifier with an analog preamp and three-band tone adjustment for desktop or portable listening. Adjust bass, midrange and treble separately, or press Pure to bypass the tone settings.

Key Features

• Separate treble, midrange and bass controls with center-point positioning.
• Pure button bypasses the tone adjustments.
• 3.5mm line input and line output, plus 3.5mm and 6.35mm headphone outputs.
• High and low gain modes for compatible 16–300Ω headphones.
• Built-in battery with a listed usage time of up to six hours; actual use varies.
• Aluminum alloy enclosure for a compact listening setup.

Specifications

• Model: SK01.
• Maximum published amplifier output at 32Ω: high gain RMS 2400mW; low gain RMS 300mW.
• Published frequency range: 20Hz–20kHz, ±0.5dB.
• Published THD+N: 0.001% at 1kHz and 770mV; SNR: ≥108dB.
• Power supply: 5V USB-C. Charging instruction: use a 5V 1.5A or 2A adapter.
• Dimensions: 121 × 51 × 43mm; net weight: 290g.
• Includes: one SK01 headphone amplifier, one 2-in-1 USB-A/C to USB-C cable and one user manual.