diff --git a/lib_xua/api/xua_conf_default.h b/lib_xua/api/xua_conf_default.h
index 6255221e..65894a8c 100644
--- a/lib_xua/api/xua_conf_default.h
+++ b/lib_xua/api/xua_conf_default.h
@@ -244,7 +244,7 @@
  * @brief Default USB input (Audio output) bit resolution
  */
 #ifndef DEFAULT_BIT_RES_IN
-#define DEFAULT_BIT_RES_IN      (16)
+#define DEFAULT_BIT_RES_IN      (32)
 #endif
 
 /**
diff --git a/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h b/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h
index dd284b0a..9faca34a 100644
--- a/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h
+++ b/lib_xua/src/core/endpoint0/xua_ep0_descriptors.h
@@ -20,8 +20,6 @@
 #include "iap2.h"                      /* Defines iAP EA Native Transport protocol name */
 #endif
 
-#include "xua_conf.h"
-
 #define APPEND_VENDOR_STR(x) VENDOR_STR" "#x
 
 #define APPEND_PRODUCT_STR_A2(x) PRODUCT_STR_A2 " "#x