- #1
spid3rx
- 15
- 0
Hello all,
This is my first post in this forum. Hope can get some constructive help from the community.
I did some testing with some radios which is actually a double ended circuit (BTL), meaning it has the spk+ and spk- port.
When I want to connect it as a single ended circuit, meaning the spk - short to ground, the audio is muted. The only way for it to work is by adding a capacitor in line with the spk+ which is the DC blcok. I search through the internet and found similar information saying that the DC block is required in order to work.
Can I know why ? what is the reason behind?
Thanks, appreciate the view and help.
This is my first post in this forum. Hope can get some constructive help from the community.
I did some testing with some radios which is actually a double ended circuit (BTL), meaning it has the spk+ and spk- port.
When I want to connect it as a single ended circuit, meaning the spk - short to ground, the audio is muted. The only way for it to work is by adding a capacitor in line with the spk+ which is the DC blcok. I search through the internet and found similar information saying that the DC block is required in order to work.
Can I know why ? what is the reason behind?
Thanks, appreciate the view and help.