diff --git a/src/capture/Capture.cpp b/src/capture/Capture.cpp
index b734528..8c3fa53 100644
--- a/src/capture/Capture.cpp
+++ b/src/capture/Capture.cpp
@@ -70,7 +70,17 @@ std::unique_ptr<Source> Capture::factory_source(const std::string& type, c4::yml
     // SDRplay RSPduo
     if (type == VALID_TYPE[0])
     {
-        return std::make_unique<RspDuo>(type, fc, fs, path, &saveIq);
+        int agcSetPoint, bandwidthNumber, gainReduction, lnaState;
+        bool dabNotch, rfNotch;
+        config["agcSetPoint"] >> agcSetPoint;
+        config["bandwidthNumber"] >> bandwidthNumber;
+        config["gainReduction"] >> gainReduction;
+        config["lnaState"] >> lnaState;
+        config["dabNotch"] >> dabNotch;
+        config["rfNotch"] >> rfNotch;
+        return std::make_unique<RspDuo>(type, fc, fs, path, &saveIq,
+          agcSetPoint, bandwidthNumber, gainReduction, lnaState,
+          dabNotch, rfNotch);
     }
     // Usrp
     else if (type == VALID_TYPE[1])
diff --git a/src/capture/rspduo/RspDuo.cpp b/src/capture/rspduo/RspDuo.cpp
index d39b0ad..cce893c 100644
--- a/src/capture/rspduo/RspDuo.cpp
+++ b/src/capture/rspduo/RspDuo.cpp
@@ -14,13 +14,9 @@
 
 // class static constants
 const double RspDuo::MAX_FREQUENCY_NR = 2000000000;
-const int RspDuo::DEF_AGC_BANDWIDTH_NR = 50;         // default agc bandwidth
 const int RspDuo::MIN_AGC_SET_POINT_NR = -72;        // min agc set point
-const int RspDuo::DEF_AGC_SET_POINT_NR = -60;        // default agc set point
 const int RspDuo::MIN_GAIN_REDUCTION_NR = 20;        // min gain reduction
-const int RspDuo::DEF_GAIN_REDUCTION_NR = 40;        // default gain reduction
 const int RspDuo::MAX_GAIN_REDUCTION_NR = 60;        // max gain reduction
-const int RspDuo::DEF_LNA_STATE_NR = 4;              // default lna state
 const int RspDuo::MAX_LNA_STATE_NR = 9;              // max lna state
 const int RspDuo::DEF_SAMPLE_RATE_NR = 2000000;      // default sample rate
 
@@ -47,7 +43,10 @@ IqData *buffer2;
 
 // constructor
 RspDuo::RspDuo(std::string _type, uint32_t _fc, 
-  uint32_t _fs, std::string _path, bool *_saveIq)
+  uint32_t _fs, std::string _path, bool *_saveIq,
+  int _agcSetPoint, int _bandwidthNumber, 
+  int _gainReduction, int _lnaState,
+  bool _dabNotch, bool _rfNotch)
   : Source(_type, _fc, _fs, _path, _saveIq)
 {
   std::unordered_map<int, int> decimationMap = {
@@ -60,14 +59,14 @@ RspDuo::RspDuo(std::string _type, uint32_t _fc,
   };
   nDecimation = decimationMap[fs];
   usb_bulk_fg = false;
-  agc_bandwidth_nr = DEF_AGC_BANDWIDTH_NR;
-  agc_set_point_nr = DEF_AGC_SET_POINT_NR;
-  gain_reduction_nr = DEF_GAIN_REDUCTION_NR;
-  lna_state_nr = DEF_LNA_STATE_NR;
-  rf_notch_fg = false;
-  dab_notch_fg = false;
   capture_fg = saveIq;
   saveIqFileLocal = &saveIqFile;
+  agc_bandwidth_nr = _bandwidthNumber;
+  agc_set_point_nr = _agcSetPoint;
+  gain_reduction_nr = _gainReduction;
+  lna_state_nr = _lnaState;
+  rf_notch_fg = _rfNotch;
+  dab_notch_fg = _dabNotch;
 }
 
 void RspDuo::start()
diff --git a/src/capture/rspduo/RspDuo.h b/src/capture/rspduo/RspDuo.h
index 164e601..0dedf10 100644
--- a/src/capture/rspduo/RspDuo.h
+++ b/src/capture/rspduo/RspDuo.h
@@ -50,20 +50,12 @@ private:
 
   /// @brief Maximum frequency (Hz).
   static const double MAX_FREQUENCY_NR;
-  /// @brief Default AGC bandwidth.
-  static const int DEF_AGC_BANDWIDTH_NR;
   /// @brief Minimum AGC set point.
   static const int MIN_AGC_SET_POINT_NR;
-  /// @brief Default AGC set point.
-  static const int DEF_AGC_SET_POINT_NR;
   /// @brief Minimum gain reduction.
   static const int MIN_GAIN_REDUCTION_NR;
-  /// @brief Default gain reduction.
-  static const int DEF_GAIN_REDUCTION_NR;
   /// @brief Maximum gain reduction.
   static const int MAX_GAIN_REDUCTION_NR;
-  /// @brief Default LNA state.
-  static const int DEF_LNA_STATE_NR;
   /// @brief Max LNA state.
   static const int MAX_LNA_STATE_NR;
   /// @brief Default sample rate.
@@ -164,7 +156,9 @@ public:
   /// @param path Path to save IQ data.
   /// @return The object.
   RspDuo(std::string type, uint32_t fc, uint32_t fs, 
-    std::string path, bool *saveIq);
+    std::string path, bool *saveIq, int agcSetPoint, 
+    int bandwidthNumber, int gainReduction, 
+    int lnaState, bool dabNotch, bool rfNotch);
 
   /// @brief Implement capture function on RSPduo.
   /// @param buffer1 Pointer to reference buffer.