Audio Professional Audio Speaker Amplifier Widely Compatible Adjustable Bass

Features.
Audio .
This product is specially designed for professional audio signal processing, which can easily convert the digital audio signal input by the coaxial or optical interface into the analog stereo audio signal of the RCA interface and the output of the 3.5 mm headphone .
Adjustable.
The for built-in professional audio amplifier chip and volume adjustment knob can directly drive the earphones to adjust the volume.
Widely compatible.
One optical fiber and one coaxial input interface, one USB input, one RCA output interface, one channel 3.5mm audio output interface, compatible with multiple kinds of input and output devices.
Portable.
Compact and lightweight, does not occupy much space when used indoors and easy to carry outdoors.
Widely used.
The is widely used in homes, schools, squares, concert halls, cinemas and other public places to enjoy the shocking stereo sound effect.
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Specifications.
Material:metal+electronic component.
Item color:black.
Support Audio Format: PCM.
Separating Degree(1K hertz): 94dB.
Response Frequency: 20 hertz to 20K hertz-0.2db.
Signal-to-Noise Ratio(SNR): -100dB.
Total Harmonic Distortion(THD+N): 10 hertz to 20K hertz 0.25-0.065%.
Blocking Time: 0.577Fs.
Sampling Rate: 32 to 192K hertz.
Bit Rate: 16 to 24 Bit.
Earphone output level(Adjust the bass to maximum):3V.
RCA output level(Adjust the bass to maximum):9V.
Earphone Output Power(Adjust the bass to maximum): (32 ohms)30mW.
Earphone Output Impedance: 0.8ohms.
RCA Output Impedance: 450 ohms.
Working Voltage: +5V.
Maximum Voltage: +6V.
Maximum Power Consumption: 75mA.
Operating Temperature Range: -10-70 degrees Celsius.
Storage Temperature Range: -60-150 degrees Celsius.
Operating Humidity Range: 10%-80%RH(No Condensation).
Storage Humidity Range: 5%-90%RH(No Condensation).
Size:10.1*9.5*2.0cm/3.97*3.73*0.79inch(L*W*H).
Net weight: 115g/4.06oz.