diff --git a/config.h b/config.h
index 18887e6..9883927 100644
--- a/config.h
+++ b/config.h
@@ -77,8 +77,8 @@
 // If nothing is defined Teensy internal DAC is used as audio output device!
 // Left and right channel audio signal is presented on pins A21 and A22.
 #define AUDIO_DEVICE_USB
-#define TEENSY_AUDIO_BOARD
-//#define PT8211_AUDIO
+//#define TEENSY_AUDIO_BOARD
+#define PT8211_AUDIO
 //#define TGA_AUDIO_BOARD
 //#define TEENSY_DAC
 //#define TEENSY_DAC_SYMMETRIC
@@ -105,7 +105,7 @@
 #define DEXED_ENGINE DEXED_ENGINE_MODERN // DEXED_ENGINE_MARKI // DEXED_ENGINE_OPL
 
 // Number of Dexed instances
-#define NUM_DEXED 2 // 1 or 2 - nothing else!
+#define NUM_DEXED 1 // 1 or 2 - nothing else!
 // FX-CHAIN ENABLE/DISABLE
 #define USE_FX 1
 // CHORUS parameters
@@ -250,12 +250,12 @@
 #define ENC_L_PIN_A  3
 #define ENC_L_PIN_B  2
 #define BUT_L_PIN    4
-#if defined(TEENSY_3_6)
+#if defined(TEENSY3_6)
 #define ENC_R_PIN_A  28
 #define ENC_R_PIN_B  29
 #define BUT_R_PIN    30
 #else
-#if defined(TEENSY_4_0)
+#if defined(TEENSY4_0)
 #define ENC_R_PIN_A  6
 #define ENC_R_PIN_B  5
 #define BUT_R_PIN    8