Description
JPA863 features a dual-channel Class D power amplifier chip, with an output power of 30W(RMS). The Class D power amplifier chip is characterized by high efficiency and energy-saving and therefore enhances the battery's durability.
JPA863 includes one matched 10'' 4Ohm speaker and one 3'' 4Ohm speaker. With a built-in lead-acid battery, ensuring lightweight and portable and thus suitable for different occasions. Perfect for small venues such as clubs, homes, and studios. 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 the VHF200-270MHz frequency range, is designed with a crystal oscillator circuit, which ensures high-frequency stability and anti-interference.
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
