diff --git a/host_python/equalizer.py b/host_python/equalizer.py
index 0117a69..f227a1e 100755
--- a/host_python/equalizer.py
+++ b/host_python/equalizer.py
@@ -21,7 +21,7 @@ PIXELS = 20
 
 SLOW = 0
 HISTORY_SIZE = 4
-MIN_FREQ = 20
+MIN_FREQ = 50
 MAX_FREQ = 12000