B01MPX2T38 ELAC EA Series Integrated Amplifier, Silver (EA101EQ-G)

The companion iOS and Android app measures the near-field response of main speakers and subwoofer, then pinpoints the subwoofer’s optimal crossover frequency and correct phase
At their heart is a brand new bash tracking amplifier delivering 80 watts per Channel into 4 ohms
Elac free IOS and Android app allows users to fully control and set up their system
Dolby digital decoding, the amp have an internal DAC
Bluetooth with aptX