| English | Chinese | Model |
| SPECIFICATIONS | 规格 | PDA400 |
| Power Ratings (RMS @ 1% THD @ 230Vac) | 额定功率（RMS @ 1%的THD 230Vac） | |
| Full frequency output mode | 全频输出模式 | |
| 1 kHz 1% THD | 1 kHz 1% THD | 4Ω 300 W+8Ω 80W |
| Typical Distortion | 典型失真 | |
| (20 Hz–3 kHz, 3 dB below clip, or 20 Hz–5 kHz, 10 dB below clip, or 20 Hz–20 kHz, 20 dB below clip) | （20-3kHz赫，低于音源3分贝， 20-5kHz，低于音源的10分贝，或20赫兹- 20千赫，低于剪辑20分贝） | |
| 4 - 8 Ω | 4 - 8 Ω | 0.01-0.03% |
| Maximum Distortion | 最大畸变 | |
| (20 Hz–20 kHz, 1 dB below rated power) | （20赫兹- 20千赫，低于额定功率1分贝） | 0.05% |
| 4 to 8 ohms | 4 - 8 Ω | |
| Frequency Response (8 ohms) | 频率响应 (8 Ω) | 20 Hz–20 kHz, ±0.2 dB |
| Noise (20 Hz–20 kHz, 32 dB Gain) | 噪声 （20-20kHz，32 dB增益） | -104 dB |
| Dynamic Headroom (4 ohms) | 动态余量 （4Ω） | 2 dB |
| Damping Factor (8 ohms) | 阻尼因子 （8Ω） | 200 |
| Output Circuitry | 输出电路 | Class D |
| Input Sensitivity | 输入灵敏度 | |
| 26 dB Setting | 26 dB Setting | 5.27V |
| 32 dB Setting | 32 dB Setting | 2.67V |
| Maximum Gain (1.2V setting) | 最大增益 （1.2V设置） | 28dB |
| Maximum Input Level | 最大输入电平 | |
| 1.2V setting | 1.2V setting | 10 V (+22 dBu) |
| 32 dBu setting | 32 dBu setting | 22 V (+29 dBu) |
| 26 dBu setting | 26 dBu setting | 25 V (+30 dBu) |
| AC Power Requirements ** | 交流电源的要求 * * | |
| 120V 50/60 Hz | 120V 50/60 Hz | 4 A |
| 230V 50 Hz | 230V 50 Hz | 2A |
| Input Impedance | 输入阻抗 | =20 kΩ balanced,=10 kΩ unbalanced |
| Cooling | 冷却方式 | 无或定速风扇,前后对流 |
| Amplifier and Load Protection | 放大器与负载保护 | 短路、开路、热、射频保护。打开/关闭静音，直流故障停机，活跃的浪涌电流限制 |
| hort circuit, open circuit, thermal, RF protection. On/off muting, DC fault shutdown, active inrush limiting | ||
| Dimensions | 尺寸 | Height:40.5mm |
| Width: 106mm | ||
| Depth: 195mm | ||
| Weight | Weight | 0.7 kg |
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