Problems with SA1 noise floor

1. User feedback wooden box has noise floor problem

If close to the speaker can hear the white noise is normal, under normal circumstances 30cm is not heard.

2. SA1 RCA and 3.5 input interface noise floor will be larger than other digital input interface

After listing if there are users feedback this problem, you can ask the user to download the FIIO control, enter the gain interface, open the gain, can effectively reduce the noise floor.

Reason: In order to get a better sound, SA1 has preset the corresponding EQ for the factory frequency response, and the position of adjusting the frequency response has affected the noise floor to a certain extent. The analog input interface will be more affected, the digital input interface has no effect. Turn on the EQ after the frequency response will be canceled, user-defined frequency response.