3通道（2.1）同轴蓝牙无线吸顶音箱xbpa-1021b与手机、ipad、笔记本电脑等无线设备本地连接，实现本地无线音频传输和扩声，每个蓝牙低音单元可以连接到2个无源扬声器，低音单元扬声器6“同轴50w，立体声扬声器输出5”30w。
2.1（3通道）同轴蓝牙无线吸顶音箱采用自由驾驶方式，用户只需将扬声器连接到应用产品上，即可快速实现音乐的无线传输，享受无线音乐的乐趣。
技术参数：

type no.
xbpa – 1021b
the power supply
audio interface
dc24v 3a
the 3.5 mm
the bluetooth specification
bluetooth v4
modulation method
gfsk, pi /4 dqpsk, 8dpsk
support bluetooth protocol
avrcpv1.4 hfpv1.6 hspv1.2, a2dpv1. 2
wireless transmission range
10 meters
bluetooth audio format
support aac, mp3, sbc, stereo
rated power
30w*2+50w
standby power consumption
< 2w
frequency response
60 hz ~ 18 khz + 1 / - 3 db
harmonic distortion
thd 1% or less
signal to noise ratio
68 db or higher
load the horn
8 ω
packing list
surround sound passive speaker *2, active woofer *1, power adapter *1, manual *1, warranty card *1
speaker unit
5.25 /coaxial loudspeaker. bass 6 inch
frequency division circuit
2 frequency division.
intelligent power
start immediately if there is a signal, cut off automatically if there is no signal
产品优势特点
外部音频信号，当有外部音频信号时，它会自动切换到外部电视音频信号，内置无信号自动待机系统，当没有音频输入号码时，设备将进入待机状态，信号将立即打开，无延迟。
电源采用直流电源，安全可靠。
3通道（2.1）同轴无线蓝牙吸顶音箱系统示意图