الماركة: JOYO
نموذج: JPA-863
Joyo JPA-863 Chargable 3 Watt Bluetooth Amplifier
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JPA863 features a dual channel Class D power amplifier chip, with output power of 30W (RMS). The Class D power amplifier chip is characterized by high efficiency and energy saving, and therefore enhance battery's durability.
JPA863 includes one matched 10" 4 Ohm speaker and one 3" 4 Ohm speaker. With a built-in leadacid battery, ensuring lightweight and portable and thus suitable for different occasions. Perfect for small venues such as club, home and studio. It also features Aux In and Player functions, together with the Bluetooth function, it will be your best companion.
JPA863's wireless microphone section, using VHF200-270 MHz frequency range, is designed with crystal oscillator circuit, which ensures high frequency stability and anti-interference.
JPA863 features a dual channel Class D power amplifier chip, with output power of 30W (RMS). The Class D power amplifier chip is characterized by high efficiency and energy saving, and therefore enhance battery's durability.
JPA863 includes one matched 10" 4 Ohm speaker and one 3" 4 Ohm speaker. With a built-in leadacid battery, ensuring lightweight and portable and thus suitable for different occasions. Perfect for small venues such as club, home and studio. It also features Aux In and Player functions, together with the Bluetooth function, it will be your best companion.
JPA863's wireless microphone section, using VHF200-270 MHz frequency range, is designed with crystal oscillator circuit, which ensures high frequency stability and anti-interference.
| Frequency Response： 50Hz---18 kHz |
| Actual Power： 30W (RMS) |
| Sensitivity： 95dB (1W/1M) |
| Speaker Impedance： 0" 4 Ohm; 3" 4 Ohm |
| Power adapter： AC in 100-240V 50/60Hz DC Out 15V/4A |
| DC Voltage： 12V 7.0Ah (Lead-acid battery) |
| Maximum Current Consumption： 3.5A |
| Net Weight: 14.1 kg |
| Dimensions: 360*245*520mm |
| Input Sensitivity |
| Guitar Input 1: -20dBu |
| Guitar Input 2: -20dBu |
| MIC1: -40dBu |
| MIC2: -40dBu |
| Overall performance |
| Carrier Frequency: VHF200-270MHz |
| Harmonic Distortion: ＜0.8% |
| Frequency Stability: ＜±20PPM |
| Dynamic Range: ＞80dB |
| Frequency Response: 60Hz---12kHz ±3dB |
| Audio Output: 0～±400mV |
| Temperature Range: －10℃～＋50℃ |
| Operating Distance: 50 meters |
| Wireless microphone |
| Frequency Stability: 0.05%(20PPM) |
| Launching Power: +13dB |
| Modulation Type: FM |
| Maximum Modulation Index: ±20kHz |
| Upper Harmonics: Less than dominant wave 60dB |
| Mains Voltage: 9V Layer-built battery |
| Hours of use: 10hrs Built-in wireless microphone receiver |
| Pseudo Image Interference Ratio: ＞70dB |
| Consuming Power: 3W |
| Signal-to-Noise Ratio: 80dB |
| Adjacent Channel Interference Ratio: ＞70dB |
| Receiving Sensitivity: 12dB |
| De emphasis: 50US |