Through Engineers with years of experience , critical testing procedures and a high-tech laboratory. Expert Electronics has created a range of high quality products that reproduce the musical signal with the clarity and fidelity you deserveInput Connection: With these input connections it is possible to connect any type of equipment with P10, XLR or RCA outputs. Ex: Guitar, Microphone, Player, Notebook, Etc.. Input Settings: With these knobs it is possible to adjust the level and equalization of channels 1 and 2, it has 4 band equalization: Low, Mid-Low, Mid-High and High. Power Connector: The P4 Connector is responsible for supping +12 and GND of the Mixer AUX Channel: The AUX channel receives the input signal from channel 1without processing, only with a variable level adjustment. Processor Outputs: These are the output channels of the audio processor, which must be connected to audio amplifiers. Player: This player allows you play music through USB and BLUETOOTH connections, it has a large display with enough information and the possibility of changing folders Vu Meter: With the Vu Meter it is possible to monitor the mixer's output signal Main Out: With this knob it is possible to adjust the output level of the mixer. Routing Channel: Routing Options: L / R / L+R Gain: General Gain: -53 to 0dB Channel Gain: 33 to +9dB Frequency Cuts (Crossover): Cutoff Frequency: 20Hz to 20kHz Type of Cuts: Linkwitz-Riley / Butterworth / Bessel Attenuation: 6dB / 12dB / 18dB / 24dB / 36dB / 48dB Input Equalizer (Eq In): Equalization Band: 15 Bands Gain: -12to +12dB Q Factor: 0.6 to 9.9 Time Alignment (Delay): Time: 0 to 18.95ms Distance: 0 to 6500mm Limiter: Threshold:: -54dB to +6dB Attack:: 1 to 220ms Release: 1 to 988ms Polarity Inversion (Polarity): Inversion: 0 to 180 Degrees Memory Presets: 3 - 100% Configurations Input (Left / Right): Inputs: 2 Number of Connections: 6 Type: Electronic Symmetrical Connectors: RCA / XLR / P10 Max Input Level: 6.15Vrms (+18dBu) Input Impedance: 100k Ohms Output: Total Outputs: 4 Connectors: Electronic Symmetrical Max Output Level: 6.15Vrms (+18dBu) Output Impedance: 100 Ohms DSP: Frequency Response: 10Hz to 24KHz (-1dB) THD+N: