diff --git a/host_python/equalizer.py b/host_python/equalizer.py
index 0f256a0..63396ce 100755
--- a/host_python/equalizer.py
+++ b/host_python/equalizer.py
@@ -22,7 +22,7 @@ LAZY = 0
 SYMMETRIC = 0
 
 HISTORY_SIZE = 8
-MIN_FREQ = 30
+MIN_FREQ = 50
 MAX_FREQ = 12000
 
 ATTENUATION = 10**(40/10) # attenuation of 40dB