• 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
3,214
Likes
6,624
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:
You must log in or register to reply here.

Similar threads

pma
Verify Power Amplifiers Distortion with FM Modulation Technique
2
Replies
21
Views
982
BR52
B
pma
Testing radiation of 3 AC power cords (what are the ASR tests about??)
Replies
11
Views
845
DJ_Rix
D
pma
Class A “class D killer” amplifier with THD less than -120dB
3 4 5
Replies
91
Views
19K
egellings
E
pma
  • Poll
Can you hear crossover distortion of >1% (listening test)
Replies
10
Views
926
pma
pma
pma
MOSFET power amplifier with error correction
2
Replies
23
Views
2K
Addicted to music
A
Top Bottom