my team and I are conducting researches on acoustic underwater communications in ultrasound frequencies (in range 40kHz - 70 kHz) and I have a couple of things to ask regarding the specifications of the amplifiers 2x5W amplifier for MP3 player WSAH190 and 200W power amplifier module WMAH100:
WSAH190: do you confirm that the frequency response goes up to 100kHz?
Do you know also the phase error w.r.t. the frequency?
Is there a pre-assembled module for this product?
WMAH100: the frequency response in the webpage (link here) gives a frequency response
up to 20kHz, but in the infosheet of this product (assembled) the higher limit is 200kHz. Which is meant to be the correct one?