The Amp2 description (https://www.hifiberry.com/shop/boards/hifiberry-amp2/) says that it supports sampling rates from 44.1-192kHz, however I recently discovered that the output is filtered from .2-20 kHz. Is there a way to bypass the filter? I bought the part with the intention of driving an ultrasonic speaker for auditory neuroscience research.
If there's no way to bypass the filter, is there a way for me to still use the Amp2 as a DAC and amply the signal (i.e. gain access to the full sample rate data) with a different amplifier?
Thanks in advance for your help.