Reference Fit OEM Integration Power Amplifier with 10 Channel DSP, 75W x 6 Output @ 4 ohms, 100W x 6 Output @ 2 ohms, 4 Channel Preout for System Expansion, Bluetooth Set up by iPhone or Android Phone, Five 13-Band EQs, Digital Time Alignment, Three Parametric EQs for each Channel, Advanced HighPass, Band-Pass and Low-Pass Digital Filters, iDatalink Maestro AR module included