diff --git a/src/blackcore/afv/audio/callsignsampleprovider.h b/src/blackcore/afv/audio/callsignsampleprovider.h
index b99346350..cba72e79f 100644
--- a/src/blackcore/afv/audio/callsignsampleprovider.h
+++ b/src/blackcore/afv/audio/callsignsampleprovider.h
@@ -69,8 +69,8 @@ namespace BlackCore
 
                 QAudioFormat m_audioFormat;
 
-                const double m_whiteNoiseGainMin = 0.15;  //0.01;
-                const double m_acBusGainMin      = 0.003; //0.002;
+                const double m_whiteNoiseGainMin = 0.17;  //0.01;
+                const double m_acBusGainMin      = 0.0028; //0.002;
                 const int m_frameCount    = 960;
                 const int m_idleTimeoutMs = 500;
 
diff --git a/src/blacksound/sampleprovider/equalizersampleprovider.cpp b/src/blacksound/sampleprovider/equalizersampleprovider.cpp
index 0e459e7f5..d9b87fe4a 100644
--- a/src/blacksound/sampleprovider/equalizersampleprovider.cpp
+++ b/src/blacksound/sampleprovider/equalizersampleprovider.cpp
@@ -37,9 +37,11 @@ namespace BlackSound
             switch (preset)
             {
             case VHFEmulation:
-                m_filters.push_back(BiQuadFilter(BiQuadFilterType::HighPass, 44100, 450, 1.0f));
-                m_filters.push_back(BiQuadFilter(BiQuadFilterType::Peak, 44100, 2200, 0.25, 13.0f));
-                m_filters.push_back(BiQuadFilter(BiQuadFilterType::LowPass, 44100, 3000, 1.0f));
+                m_filters.push_back(BiQuadFilter(BiQuadFilterType::HighPass, 44100, 310, 0.25f));
+                m_filters.push_back(BiQuadFilter(BiQuadFilterType::Peak, 44100, 450, 0.75f, 17.0f));
+                m_filters.push_back(BiQuadFilter(BiQuadFilterType::Peak, 44100, 1450, 1.0f, 25.0f));
+                m_filters.push_back(BiQuadFilter(BiQuadFilterType::Peak, 44100, 2000, 1.0f, 25.0f));
+                m_filters.push_back(BiQuadFilter(BiQuadFilterType::LowPass, 44100, 2500, 0.25f));
                 break;
             }
         }