Chipset Bluetooth: Qualcomm QCC5181
USB: XMOS XU316-1024
DAC: ESS ES9039Q2M
Operational Amplifier
I/V Conversion: TI OPA1612 × 2
Low-Pass Filter (LPF): TI OPA1612 × 2
Buffer: Ricore RT6863 × 2
Volume Control: NJU72315 × 2
Ultra-low noise LDO: ESS ES9311Q (1.3 μVrms)
Apple MFi: Apple Authentication 3.0 Coprocessor
Audio
Performance
4.4 mm Headphone Jack
THD+N (1 kHz, No load): 0.000126% (-118dB)
Max Noise: < 3.5 μVrms
SNR (1 kHz, No load): 122 dB
DNR (1 kHz, No load): 121 dB
Max Output @600 Ω: 41.67 mW (5.0Vrms), THD+N < -90dB
Max Output @150 Ω: 167 mW (5.0Vrms), THD+N < -90dB
Max Output @33 Ω: 165 mW (2.33Vrms), THD+N < -90dB
Max Output @16.5 Ω: 180 mW (1.72Vrms), THD+N < -90dB
3.5 mm Headphone Jack
THD+N (1 kHz, No load): 0.000158% (-116dB)
Max Noise: < 2.5 μVrms
SNR (1 kHz, No load): 120 dB
DN (1 kHz, No load): 119 dB
Max Output @300 Ω: 20.8 mW (2.5Vrms), THD+N < -90dB
Max Output @150 Ω: 42 mW (2.5Vrms), THD+N < -90dB
Max Output @33 Ω: 120 mW (2.0Vrms), THD+N < -90dB
Max Output @16.5 Ω: 100 mW (1.28Vrms), THD+N < -90dB
Sampling
Rate
UAC1.0: Up to PCM 96 kHz/24 bit (DSD not supported, incompatible with iPhone)
UAC2.0: Up to PCM 768 kHz/32 bit, DSD512 (Native)
Bluetooth: Up to PCM 96 kHz/24 bit (DSD not supported)
Audio Formats Supports SBC / AAC / aptX / aptX Adaptive / aptX HD / LDAC
Gain Levels High Gain
4.4 mm (at 0dB): 5.0 Vrms
3.5 mm (at 0dB): 2.5 Vrms
Low Gain
4.4 mm (at 0dB): 2.5 Vrms
3.5 mm (at 0dB): 1.25 Vrms
EQ Mode 7 Presets: Default / Classical / Jazz / Rock / Pop / Bass / Blues
Custom EQ: 10-band equalizer, adjustable gain from -12dB to +12dB
OS
Compatibility
iOS / iPadOS: Natively supported (MFi certified)
Android: Plug and play
macOS: Natively supported
Windows 7 / 8 / 10 / 11: Requires Khadas USB ASIO driver
Linux: Compatible with systems running UAC2.0-compliant kernels
Screen 0.95” Color AMOLED
120 × 240 RGB
Buttons Power × 1, Menu × 1, Volume Up (+) × 1, Volume Down (–) × 1
Ports 3.5 mm Headphone Jack × 1
4.4 mm Headphone Jack × 1
USB-C × 1 (Audio input + Charging)
Microphone Analog Microphone × 1, SNR ≈ 59 dBA
Khadas Audio App
Supports gain adjustment, EQ tuning, filter selection, language switching, firmware updates, and more.
Body Materials
- CNC-machined aluminum chassis, Corning® Gorilla® Glass 3, Premium wear-resistant leather back panel
Power & Battery
Capacity: 2100 mAh
Battery Life:
≥ 11 hours (Bluetooth AAC)
≥ 8 hours (USB-C, 44.1 kHz)
Size & Weight
102.7 × 64.0 × 7.85 mm (excluding button height)
96.0 g