diff --git a/ucm2/HDA/HiFi.conf b/ucm2/HDA/HiFi.conf
index 700788e1..9e567f69 100644
--- a/ucm2/HDA/HiFi.conf
+++ b/ucm2/HDA/HiFi.conf
@@ -1,6 +1,10 @@
 # Use case Configuration for sof-hda-dsp
 
 SectionVerb {
+	EnableSequence [
+		disdevall ""
+	]
+
 	Value.TQ "HiFi"
 }
 
diff --git a/ucm2/Intel/sof-essx8336/HiFi.conf b/ucm2/Intel/sof-essx8336/HiFi.conf
index fc155f82..974a80aa 100644
--- a/ucm2/Intel/sof-essx8336/HiFi.conf
+++ b/ucm2/Intel/sof-essx8336/HiFi.conf
@@ -1,7 +1,8 @@
 SectionVerb {
 	EnableSequence [
+		disdevall ""
 		# Disable all inputs / outputs
-		cset "name='Speaker Switch' off"
+		#   (may be duplicated with disdevall)
 		cset "name='Headphone Switch' off"
 		cset "name='Headset Mic Switch' off"
 		cset "name='Internal Mic Switch' off"
diff --git a/ucm2/Intel/sof-hda-dsp/HiFi.conf b/ucm2/Intel/sof-hda-dsp/HiFi.conf
index 713fdd94..813cb95f 100644
--- a/ucm2/Intel/sof-hda-dsp/HiFi.conf
+++ b/ucm2/Intel/sof-hda-dsp/HiFi.conf
@@ -1,6 +1,10 @@
 # Use case Configuration for sof-hda-dsp
 
 SectionVerb {
+	EnableSequence [
+		devdisall ""
+	]
+
 	Value.TQ "HiFi"
 }
 
diff --git a/ucm2/sof-soundwire/HiFi.conf b/ucm2/sof-soundwire/HiFi.conf
index e780ea47..0b46640a 100644
--- a/ucm2/sof-soundwire/HiFi.conf
+++ b/ucm2/sof-soundwire/HiFi.conf
@@ -1,6 +1,10 @@
 # Use case Configuration for sof-soundwire card
 
 SectionVerb {
+	EnableSequence [
+		devdisall ""
+	]
+
 	Value.TQ "HiFi"
 }