Description Introduction This product is specially designed for professional audio signal processing,You can easily convert the digital audio signal of input of coaxial or optical interface to analog stereo audio signal of RCA interface and 3.5 mm headphone jack. The built-in professional audio amplifier chip and volume adjustment knob can directly drive the headphones and adjust volume. The product's bass adjustment function can provide powerful stereo, heavy bass effects, and create a perfect environment different from the sound field. The effect obtained is very obvious, which makes you reveled to the world of bass. Features: One optical fiber and one coaxial input interface. Connect to DVD, HD player and other devices One USB input, connect to computers. One RCA output interface, connected to the power amplifier system One channel 3.5mm audio output interface, Connected to headphones. Eliminate the noise when there is no input signal, and automatically mute when the non-audio signal is input. Support 192kHz 24bit sampling rate. Support volume adjustment Support bass adjustment Metal shell, anti-interference Specifications: Model AY107 Support Audio Format PCM Separating Degree(1KHZ) 94DB Response Frequency 20Hz~20KHz -0.2db Signal-to-Noise Ratio(SNR) -100DB Total Harmonic Distortion(THD+N) 10Hz~20KHz 0.25-0.065% Blocking Time 0.577Fs Sampling Rate 32~192 KHz 32~192 KHz 16~24 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 tomaximum) (32)30mW Earphone Output Impedance 0.8 RCA Output Impedance 450 Working Voltage +5V Maximum Voltage +6V Maximum Power Consumption 75mA Operating Temperature Range -10-70 Storage Temperature Range -60-150 Operating Humidity Range 10% - 80%RH(No Condensation) Storage Humidity Range 5- 90%RH(No Condensation) Size 101x95 x20 mm