diff --git a/src/NRF52840/AutoAnalogAudio.cpp b/src/NRF52840/AutoAnalogAudio.cpp
index 200688c..c5dc7c7 100644
--- a/src/NRF52840/AutoAnalogAudio.cpp
+++ b/src/NRF52840/AutoAnalogAudio.cpp
@@ -27,7 +27,7 @@
 #if !defined ARDUINO_NRF52840_FEATHER
   #define PDM_IRQ_PRIORITY     7
   #define NRF_PDM_FREQ_1280K  (nrf_pdm_freq_t)(0x0A000000UL)               ///< PDM_CLK= 1.280 MHz (32 MHz / 25) => Fs= 20000 Hz
-  #define DEFAULT_PDM_GAIN     20
+  #define DEFAULT_PDM_GAIN     40
 #endif
   #define PIN_MCK    12//(13)
   #define PIN_SCK    13//(14)