diff --git a/device-cheetah.mk b/device-cheetah.mk
index 8ab67d7..89e68fb 100644
--- a/device-cheetah.mk
+++ b/device-cheetah.mk
@@ -188,6 +188,10 @@ PRODUCT_PACKAGES_DEBUG += \
 PRODUCT_PROPERTY_OVERRIDES += \
        ro.audio.spatializer_enabled=true
 
+# optimize spatializer effect
+PRODUCT_PROPERTY_OVERRIDES += \
+       audio.spatializer.effect.util_clamp_min=300
+
 # Keymaster HAL
 #LOCAL_KEYMASTER_PRODUCT_PACKAGE ?= android.hardware.keymaster@4.1-service
 
diff --git a/device-panther.mk b/device-panther.mk
index 998d6e7..7b5b4f8 100644
--- a/device-panther.mk
+++ b/device-panther.mk
@@ -169,6 +169,10 @@ PRODUCT_PACKAGES_DEBUG += \
 PRODUCT_PROPERTY_OVERRIDES += \
        ro.audio.spatializer_enabled=true
 
+# optimize spatializer effect
+PRODUCT_PROPERTY_OVERRIDES += \
+       audio.spatializer.effect.util_clamp_min=300
+
 # Keymaster HAL
 #LOCAL_KEYMASTER_PRODUCT_PACKAGE ?= android.hardware.keymaster@4.1-service