• WANTED: Happy members who like to discuss audio and other topics related to our interest. Desire to learn and share knowledge of science required as is 20 years of participation in forums (not all true). There are daily reviews of audio hardware and expert members to help answer your questions. Click here to have your audio equipment measured for free!

45kHz BW distortion study of 3 amplifier topologies (2xAB, 1xD) + A/B test

OP
pma

pma

Major Contributor
Joined
Feb 23, 2019
Messages
3,199
Likes
6,551
Location
Prague
You should also understand that the SAB amplifier has more flat frequency response than the NC252MP especially at high frequencies. The class D NC252MP has limited bandwidth and it has -0.5dB/20kHz. Both amps have their FR at amp output terminals quite independent on load impedance.

SAB_NC_FR.png


10kHz square response shows wide bandwidth and flat FR of the SAB amplifier. It is flat up to 100kHz.
SAB_10kHz_sq.png
 
Last edited:
Top Bottom