KGUSS Topping DX5II Fully Balanced DAC Headphone Amp — Dual ES9039Q2M, PCM768kHz, DSD512, LDAC

Overview

The KGUSS Topping DX5II combines a fully balanced DAC and headphone amplifier into a single, cohesive unit. Each channel uses an independent ES9039Q2M DAC, helping minimize crosstalk and improve imaging while delivering low noise across the listening range.

What this translates to in listening

• Dual ES9039Q2M per channel for clean separation and rich tonal balance.
• 133dB SNR and 133dB dynamic range with distortion as low as 0.00006% for hi-res formats.
• X-Hybrid amplifier with three stages—discrete input, op-amp gain, and discrete output—for efficiency and stable thermals.
• High drive capability, with up to 7600mW x 2 into 16 ohms, accommodating a wide headphone range.

Headphone compatibility and tone shaping

• Supports 6.35mm SE, 4.4mm balanced, and 4-pin XLR outputs for versatile compatibility.
• Ultra-low noise floor of 1.8uVrms keeps hiss under control with sensitive IEMs and high-sensitivity cans.
• 10-band PEQ software to adjust frequency, gain, and Q-factor; save profiles and switch between listening scenarios.
• Import/export EQ curves to standardize sound across your devices.

Wireless and high-resolution capabilities

• Bluetooth 5.1 with QCC5125 provides LDAC, aptX-Adaptive, aptX HD, AAC, and SBC up to 96k/24-bit.
• Native PCM up to 768kHz and DSD512 provide a high-resolution pathway when wired or streamed.

User experience and real-world use

Set up is straightforward on a desktop, with a visually clear software interface for EQ curves and profiles. The combination of robust power and refined control makes it a practical upgrade for desktop listening, movie nights, or critical music sessions.

Note: Benefits described are possibilities based on specifications and typical usage; actual results depend on gear, files, and listening environment.