diff --git a/avs/avs_rt5663/HiFi.conf b/avs/avs_rt5663/HiFi.conf
index 775920f..9c3aae2 100644
--- a/avs/avs_rt5663/HiFi.conf
+++ b/avs/avs_rt5663/HiFi.conf
@@ -13,7 +13,7 @@ SectionVerb {
 		cset "name='DAC Playback Volume' 60"
 		cset "name='IN1 Capture Volume' 4"
 		cset "name='STO1 ADC MIXL ADC1 Switch' on"
-		cset "name='STO1 ADC MIXL ADC2 Switch' on"
+		cset "name='STO1 ADC MIXL ADC2 Switch' off"
 		cset "name='STO1 DAC MIXL DAC L Switch' on"
 		cset "name='STO1 DAC MIXR DAC R Switch' on"
 		cset "name='DAC L Mux' STO DAC MIXL"