diff --git a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/xua_conf.h b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/xua_conf.h
index 6106473..70d7d7a 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/xua_conf.h
+++ b/sw_usb_audio/app_usb_aud_phaten_golden_6ch/src/core/xua_conf.h
@@ -110,19 +110,11 @@
 /*** Defines relating to audio frequencies ***/
 /* Master clock defines (in Hz) */
 #ifndef MCLK_441
-#if defined(F1_MUSIC_UAC2)
 #define MCLK_441           (1024*44100)   /* 44.1, 88.2 etc */
-#else
-#define MCLK_441           (256*44100)   /* 44.1, 88.2 etc */
-#endif
 #endif
 
 #ifndef MCLK_48
-#if defined(F1_MUSIC_UAC2)
 #define MCLK_48            (1024*48000)   /* 48, 96 etc */
-#else
-#define MCLK_48            (256*48000)   /* 48, 96 etc */
-#endif
 #endif
 
 /* Minumum sample frequency device runs at */