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| Name/Model | KA15 | 
| Hardware Solution | DAC: CS43198 x2 | 
| Color | Midnight black/Sky blue | 
| Dimensions | About 52*25*11mm | 
| Weight | About 21g | 
| Adaptive Impedance | PO: 16~150Ω; BAL: 16~300Ω | 
| Sampling Rate Indication | LCD Display Screen | 
| Max Supported Sampling Rate | 768K/32bit, DSD64/128/256, 384K/32bit (coaxial) | 
| Firmware Upgrade | System firmware can be upgraded via USB | 
| FiiO Control | Supported | 
| EQ | Supported | 
| Buttons and Ports | |
| USB Port | Type-C USB | 
| 3.5mm Plug | Single-ended/SPDIF output (shared) | 
| 4.4mm Plug | Balanced output | 
| Physical Button | Adjust volume, switch songs | 
| Toggle Switch | Desktop mode switch | 
| Audio Parameters (3.5mm headphone out) | |
| Output Power | L+R≥290mW+290mW (16Ω) L+R≥180mW+180mW (32Ω) L+R≥19mW+19mW (300Ω) | 
| Peak Output Voltage | ≥2.4V (32Ω) | 
| Output Impedance | <0.8Ω | 
| Frequency Response | 20Hz~20kHz, damping ≤0.1dB 20Hz~50kHz, damping ≤0.1dB | 
| THD+N | <0.00045% (0dB, 32Ω) | 
| SNR | ≥122dB (32Ω, A-weighted) | 
| Crosstalk | ≥74dB (1kHz, 32Ω) | 
| Audio Parameters (4.4mm headphone out) | |
| Output Power | L+R≥510mW+510mW (16Ω) L+R≥560mW+560mW (32Ω) L+R≥78mW+78mW (300Ω) | 
| Peak Output Voltage | ≥4.2V (32Ω) | 
| Output Impedance | <1.2Ω | 
| Frequency Response | 20Hz~20kHz, damping ≤0.1dB 20Hz~50kHz, damping ≤0.1dB | 
| THD+N | <0.0004% (-4dB, 32Ω) | 
| SNR | ≥123dB (32Ω, A-weighted) |