diff --git a/garage.grc b/garage.grc
index 6234b8d..e25b933 100644
--- a/garage.grc
+++ b/garage.grc
@@ -837,7 +837,7 @@
     </param>
     <param>
       <key>kThreshold</key>
-      <value>0.1</value>
+      <value>0.05</value>
     </param>
   </block>
   <block>
@@ -884,7 +884,7 @@
     </param>
     <param>
       <key>gain</key>
-      <value>20</value>
+      <value>30</value>
     </param>
     <param>
       <key>id</key>
diff --git a/kfz.grc b/kfz.grc
index cb457ea..1e2137e 100644
--- a/kfz.grc
+++ b/kfz.grc
@@ -837,7 +837,7 @@
     </param>
     <param>
       <key>kThreshold</key>
-      <value>0.2</value>
+      <value>0.02</value>
     </param>
   </block>
   <block>
diff --git a/mausi.grc b/mausi.grc
index 3903cb5..7e12f1a 100644
--- a/mausi.grc
+++ b/mausi.grc
@@ -837,7 +837,7 @@
     </param>
     <param>
       <key>kThreshold</key>
-      <value>0.2</value>
+      <value>0.010</value>
     </param>
   </block>
   <block>
@@ -884,7 +884,7 @@
     </param>
     <param>
       <key>gain</key>
-      <value>200</value>
+      <value>400</value>
     </param>
     <param>
       <key>id</key>