Block diagram of ibasso D4 Mamba to explain where and why clipping occurs

The supply voltage of the AD8616 is insufficient to handle the output of the WM8740.

Possible solution is
1) Redesign the power supply so that the supply to the Ad8616 is at least 5v or more

2) Reduce the gain of the AD8616 so that the output is within the supply limit
(the so called 2.2K resistor mod)

3) Reduce the signal feeding the WM8740 DAC so that the output is below clipping level. Setting iTune, (Windows media player or VLC) volume to 80% or lower.

If you are using line in, you are not affected.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s