diff --git a/xybrid/nodes/instrument/2x03.cpp b/xybrid/nodes/instrument/2x03.cpp
index e63314b..b7b5641 100644
--- a/xybrid/nodes/instrument/2x03.cpp
+++ b/xybrid/nodes/instrument/2x03.cpp
@@ -223,9 +223,9 @@ void I2x03::onGadgetCreated() {
     l2->addSpacer();
 
     // pwm group
-    (new KnobGadget(l2))->bind(pwmDepth)->setLabel(qs("PWM"))->setTextFunc(KnobGadget::textPercent)->setRange(0.0, 1.0, 0.01)->setDefault(0.75);
+    KnobGadget::autoPercent(l2, pwmDepth)->setLabel(qs("PWM"))->setDefault(0.75);
     (new KnobGadget(l2))->bind(pwmTime)->setLabel(qs("Time"))->setRange(0.01, 5.0, 0.01)->setDefault(3.0);
-    (new KnobGadget(l2))->bind(pwmPhase)->setLabel(qs("Phase"))->setRange(0.0, 1.0, 0.01);
+    KnobGadget::autoPercent(l2, pwmPhase)->setLabel(qs("Phase"));
 
     //
 }