diff --git a/Plugins/sidplay/SidDecoder.mm b/Plugins/sidplay/SidDecoder.mm
index 621d94491..baaab0cce 100755
--- a/Plugins/sidplay/SidDecoder.mm
+++ b/Plugins/sidplay/SidDecoder.mm
@@ -66,7 +66,7 @@
         {
             _builder->filter(true);
             _builder->filter6581Curve(0.5);
-            _builder->filter8580Curve(12500.0);
+            _builder->filter8580Curve(0.5);
         }
         if (!_builder->getStatus())
             return NO;