diff --git a/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h b/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
index 01ab8667..12b12aba 100644
--- a/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK25-RAMBo13a-E3Dv6full.h
@@ -85,7 +85,9 @@
 #define SHEET_PRINT_ZERO_REF_Y 0.f
 
 #define DEFAULT_MAX_FEEDRATE          {200, 200, 12, 120}      // (mm/sec)   max feedrate (M203)
+#define DEFAULT_MAX_FEEDRATE_SILENT         {172, 172, 12, 120}      // (mm/sec)   max feedrate (M203), silent mode
 #define DEFAULT_MAX_ACCELERATION      {1000, 1000, 200, 5000}  // (mm/sec^2) max acceleration (M201)
+#define DEFAULT_MAX_ACCELERATION_SILENT     {960, 960, 200, 5000}    // (mm/sec^2) max acceleration (M201), silent mode
 
 
 #define DEFAULT_ACCELERATION          1250   // X, Y, Z and E max acceleration in mm/s^2 for printing moves (M204S)