diff --git a/App/CMakeLists.txt b/App/CMakeLists.txt
index e978273f..3985dcdf 100644
--- a/App/CMakeLists.txt
+++ b/App/CMakeLists.txt
@@ -195,6 +195,7 @@ enable_feature(ENABLE_FEAT_F4HWN_INV)
 enable_feature(ENABLE_FEAT_F4HWN_CTR)
 enable_feature(ENABLE_FEAT_F4HWN_RESCUE_OPS)
 enable_feature(ENABLE_FEAT_F4HWN_VOL)
+enable_feature(ENABLE_FEAT_F4HWN_AUDIO)
 enable_feature(ENABLE_FEAT_F4HWN_RESET_VFO)
 enable_feature(ENABLE_FEAT_F4HWN_PMR)
 enable_feature(ENABLE_FEAT_F4HWN_GMRS_FRS_MURS)
diff --git a/App/app/menu.c b/App/app/menu.c
index 38ef390a..453bc9c2 100644
--- a/App/app/menu.c
+++ b/App/app/menu.c
@@ -407,19 +407,19 @@ int MENU_GetLimits(uint8_t menu_id, int32_t *pMin, int32_t *pMax)
             //*pMin = 0;
             *pMax = ARRAY_SIZE(gSubMenu_SET_TOT) - 1;
             break;
-#ifdef ENABLE_FEAT_F4HWN_CTR
+        #ifdef ENABLE_FEAT_F4HWN_CTR
         case MENU_SET_CTR:
             *pMin = 1;
             *pMax = 15;
             break;
-#endif
+        #endif
         case MENU_TX_LOCK:
-#ifdef ENABLE_FEAT_F4HWN_INV
+        #ifdef ENABLE_FEAT_F4HWN_INV
         case MENU_SET_INV:
             //*pMin = 0;
             *pMax = ARRAY_SIZE(gSubMenu_OFF_ON) - 1;
             break;
-#endif
+        #endif
         case MENU_SET_LCK:
             //*pMin = 0;
             *pMax = ARRAY_SIZE(gSubMenu_SET_LCK) - 1;
@@ -429,6 +429,12 @@ int MENU_GetLimits(uint8_t menu_id, int32_t *pMin, int32_t *pMax)
             //*pMin = 0;
             *pMax = ARRAY_SIZE(gSubMenu_SET_MET) - 1;
             break;
+        #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        case MENU_SET_AUD:
+            //*pMin = 0;
+            *pMax = ARRAY_SIZE(gSubMenu_SET_AUD) - 1;
+            break;
+        #endif
         #ifdef ENABLE_FEAT_F4HWN_NARROWER
             case MENU_SET_NFM:
                 //*pMin = 0;
@@ -939,11 +945,11 @@ void MENU_AcceptSetting(void)
         case MENU_SET_EOT:
             gSetting_set_eot = gSubMenuSelection;
             break;
-#ifdef ENABLE_FEAT_F4HWN_CTR
+        #ifdef ENABLE_FEAT_F4HWN_CTR
         case MENU_SET_CTR:
             gSetting_set_ctr = gSubMenuSelection;
             break;
-#endif
+        #endif
         case MENU_SET_INV:
             gSetting_set_inv = gSubMenuSelection;
             break;
@@ -956,6 +962,12 @@ void MENU_AcceptSetting(void)
         case MENU_SET_GUI:
             gSetting_set_gui = gSubMenuSelection;
             break;
+        #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        case MENU_SET_AUD:
+            gSetting_set_audio = gSubMenuSelection;
+            RADIO_SetModulation(gRxVfo->Modulation);
+            break;
+        #endif
         #ifdef ENABLE_FEAT_F4HWN_NARROWER
             case MENU_SET_NFM:
                 gSetting_set_nfm = gSubMenuSelection;
@@ -1388,11 +1400,11 @@ void MENU_ShowCurrentSetting(void)
         case MENU_SET_EOT:
             gSubMenuSelection = gSetting_set_eot;
             break;
-#ifdef ENABLE_FEAT_F4HWN_CTR
+        #ifdef ENABLE_FEAT_F4HWN_CTR
         case MENU_SET_CTR:
             gSubMenuSelection = gSetting_set_ctr;
             break;
-#endif
+        #endif
         case MENU_SET_INV:
             gSubMenuSelection = gSetting_set_inv;
             break;
@@ -1405,6 +1417,11 @@ void MENU_ShowCurrentSetting(void)
         case MENU_SET_GUI:
             gSubMenuSelection = gSetting_set_gui;
             break;
+        #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        case MENU_SET_AUD:
+            gSubMenuSelection = gSetting_set_audio;
+            break;
+        #endif
         #ifdef ENABLE_FEAT_F4HWN_NARROWER
             case MENU_SET_NFM:
                 gSubMenuSelection = gSetting_set_nfm;
diff --git a/App/misc.c b/App/misc.c
index 835a1f8f..fe3d56fa 100644
--- a/App/misc.c
+++ b/App/misc.c
@@ -126,6 +126,9 @@ enum BacklightOnRxTx_t gSetting_backlight_on_tx_rx;
     bool          gSetting_set_lck = false;
     bool          gSetting_set_met = 0;
     bool          gSetting_set_gui = 0;
+    #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        uint8_t       gSetting_set_audio = 0;
+    #endif
     #ifdef ENABLE_FEAT_F4HWN_NARROWER
         bool          gSetting_set_nfm = 0;
     #endif
diff --git a/App/misc.h b/App/misc.h
index 490ec733..36c27af4 100644
--- a/App/misc.h
+++ b/App/misc.h
@@ -188,6 +188,9 @@ extern enum BacklightOnRxTx_t gSetting_backlight_on_tx_rx;
     extern bool               gSetting_set_lck;
     extern bool               gSetting_set_met;
     extern bool               gSetting_set_gui;
+    #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        extern uint8_t            gSetting_set_audio;
+    #endif
     #ifdef ENABLE_FEAT_F4HWN_NARROWER
         extern bool               gSetting_set_nfm;
     #endif
diff --git a/App/radio.c b/App/radio.c
index b29b3782..ad395e53 100644
--- a/App/radio.c
+++ b/App/radio.c
@@ -53,6 +53,40 @@ const char gModulationStr[MODULATION_UKNOWN][4] = {
 #endif
 };
 
+#ifdef ENABLE_FEAT_F4HWN_AUDIO
+    static void AUDIO_ApplyProfile(uint8_t profile)
+    {
+        switch (profile)
+        {
+            default:
+            case 0: // FLAT
+                BK4819_WriteRegister(0x54, 0x9009);
+                BK4819_WriteRegister(0x55, 0x3200);
+                break;
+
+            case 1: // CLEAN
+                BK4819_WriteRegister(0x54, 0x9009);
+                BK4819_WriteRegister(0x55, 0x33A9);
+                break;
+
+            case 2: // MID
+                BK4819_WriteRegister(0x54, 0x9009);
+                BK4819_WriteRegister(0x55, 0x3600);
+                break;
+
+            case 3: // BOOST
+                BK4819_WriteRegister(0x54, 0x8546);
+                BK4819_WriteRegister(0x55, 0x3AF0);
+                break;
+
+            case 4: // MAX
+                BK4819_WriteRegister(0x54, 0x8566);
+                BK4819_WriteRegister(0x55, 0x3D00);
+                break;
+        }
+    }
+#endif
+
 bool RADIO_CheckValidList(uint8_t scanList)
 {
     if(scanList == MR_CHANNELS_LIST + 1)
@@ -1060,8 +1094,14 @@ void RADIO_SetModulation(ModulationMode_t modulation)
         BK4819_WriteRegister(0x2a,0x7400);
         BK4819_WriteRegister(0x2b,0);
         BK4819_WriteRegister(0x2f,0x9890);
-        BK4819_WriteRegister(0x54, 0x9009);
-        BK4819_WriteRegister(0x55, 0x31a9);
+        //BK4819_WriteRegister(0x54, 0x9009);
+        //BK4819_WriteRegister(0x55, 0x31a9);
+        #ifdef ENABLE_FEAT_F4HWN_AUDIO
+            AUDIO_ApplyProfile(gSetting_set_audio);
+        #else
+            BK4819_WriteRegister(0x54, 0x9009);
+            BK4819_WriteRegister(0x55, 0x31a9);
+        #endif
     }
     else
     {
@@ -1073,6 +1113,10 @@ void RADIO_SetModulation(ModulationMode_t modulation)
         BK4819_WriteRegister(0x2f,0x9990);
         //BK4819_WriteRegister(0x54, 0x9775);
         //BK4819_WriteRegister(0x55, 0x32c6);
+
+        BK4819_WriteRegister(0x54, 0x8846);
+        BK4819_WriteRegister(0x55, 0x38C0);
+
         BK4819_SetFilterBandwidth(BK4819_FILTER_BW_AM, true);
     }
     
diff --git a/App/settings.c b/App/settings.c
index f72bf44c..cca89b4e 100644
--- a/App/settings.c
+++ b/App/settings.c
@@ -35,6 +35,9 @@ void SETTINGS_InitEEPROM(void)
     uint8_t Data[16] = {0};
     // 0E70..0E77
     PY25Q16_ReadBuffer(0x00A000, Data, 8);
+    #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        gSetting_set_audio = (Data[0] < 5) ? Data[0] : 0;
+    #endif
     gEeprom.SQUELCH_LEVEL        = (Data[1] < 10) ? Data[1] : 1;
     gEeprom.TX_TIMEOUT_TIMER     = (Data[2] > 4 && Data[2] < 180) ? Data[2] : 11;
     #ifdef ENABLE_NOAA
@@ -657,6 +660,9 @@ void SETTINGS_SaveSettings(void)
 
     // 0x0E70
     State = SecBuf;
+    #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        State[0] = gSetting_set_audio;
+    #endif
     State[1] = gEeprom.SQUELCH_LEVEL;
     State[2] = gEeprom.TX_TIMEOUT_TIMER;
     #ifdef ENABLE_NOAA
diff --git a/App/ui/menu.c b/App/ui/menu.c
index 23bbd8b5..85035a7a 100644
--- a/App/ui/menu.c
+++ b/App/ui/menu.c
@@ -147,6 +147,9 @@ const t_menu_item MenuList[] =
     {"SetLck",      MENU_SET_LCK       },
     {"SetMet",      MENU_SET_MET       },
     {"SetGUI",      MENU_SET_GUI       },
+#ifdef ENABLE_FEAT_F4HWN_AUDIO    
+    {"SetRxA",      MENU_SET_AUD       },
+#endif
     {"SetTmr",      MENU_SET_TMR       },
 #ifdef ENABLE_FEAT_F4HWN_SLEEP
     {"SetOff",       MENU_SET_OFF      },
@@ -409,6 +412,17 @@ const char gSubMenu_SCRAMBLER[][7] =
         "CLASSIC"
     };
 
+    #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        const char gSubMenu_SET_AUD[][6] =
+        {
+            "FLAT",
+            "CLEAN",
+            "MID",
+            "BOOST",
+            "MAX"
+        };
+    #endif
+
     #ifdef ENABLE_FEAT_F4HWN_NARROWER
         const char gSubMenu_SET_NFM[][9] =
         {
@@ -1161,6 +1175,12 @@ void UI_DisplayMenu(void)
             strcpy(String, gSubMenu_SET_MET[gSubMenuSelection]); // Same as SET_MET
             break;
 
+        #ifdef ENABLE_FEAT_F4HWN_AUDIO
+            case MENU_SET_AUD:
+                strcpy(String, gSubMenu_SET_AUD[gSubMenuSelection]);
+                break;
+        #endif
+
         #ifdef ENABLE_FEAT_F4HWN_NARROWER
             case MENU_SET_NFM:
                 strcpy(String, gSubMenu_SET_NFM[gSubMenuSelection]);
diff --git a/App/ui/menu.h b/App/ui/menu.h
index 199aa04e..70ee5f12 100644
--- a/App/ui/menu.h
+++ b/App/ui/menu.h
@@ -150,6 +150,9 @@ enum
         MENU_NOAA_S,
     #endif
     MENU_SET_NAV,
+    #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        MENU_SET_AUD,
+    #endif
 #endif
     MENU_BATCAL,  // battery voltage calibration
     MENU_F1SHRT,
@@ -194,6 +197,9 @@ extern const char        gSubMenu_D_RSP[4][11];
     #ifdef ENABLE_FEAT_F4HWN_RESCUE_OPS
         extern const char gSubMenu_SET_KEY[][9];
     #endif
+    #ifdef ENABLE_FEAT_F4HWN_AUDIO
+        extern const char    gSubMenu_SET_AUD[5][6];
+    #endif
 #endif
 
 extern const char* const gSubMenu_PTT_ID[5];
diff --git a/CMakePresets.json b/CMakePresets.json
index ebcd037a..400f3144 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -58,6 +58,7 @@
                 "ENABLE_FEAT_F4HWN_CTR": true,
                 "ENABLE_FEAT_F4HWN_RESCUE_OPS": false,
                 "ENABLE_FEAT_F4HWN_VOL": false,
+                "ENABLE_FEAT_F4HWN_AUDIO": false,
                 "ENABLE_FEAT_F4HWN_RESET_VFO": true,
                 "ENABLE_FEAT_F4HWN_PMR": false,
                 "ENABLE_FEAT_F4HWN_GMRS_FRS_MURS": false,
@@ -185,6 +186,7 @@
                 "ENABLE_FEAT_F4HWN_GMRS_FRS_MURS": true,
                 "ENABLE_FEAT_F4HWN_RESCUE_OPS": true,
                 "ENABLE_FEAT_F4HWN_VOL": true,
+                "ENABLE_FEAT_F4HWN_AUDIO": true,
                 "ENABLE_SWD": true,
                 "EDITION_STRING": "Fusion",
                 "TARGET": "f4hwn.fusion"