diff --git a/designs/MINI-LFR_WFP_MS/MINI_LFR_top.vhd b/designs/MINI-LFR_WFP_MS/MINI_LFR_top.vhd
--- a/designs/MINI-LFR_WFP_MS/MINI_LFR_top.vhd
+++ b/designs/MINI-LFR_WFP_MS/MINI_LFR_top.vhd
@@ -518,7 +518,7 @@ BEGIN  -- beh
       pirq_ms                => 6,
       pirq_wfp               => 14,
       hindex                 => 2,
-      top_lfr_version        => X"000133")  -- aa.bb.cc version
+      top_lfr_version        => X"000134")  -- aa.bb.cc version
     PORT MAP (
       clk             => clk_25,
       rstn            => LFR_rstn,
diff --git a/lib/lpp/lpp_top_lfr/lpp_lfr_filter_coeff.vhd b/lib/lpp/lpp_top_lfr/lpp_lfr_filter_coeff.vhd
--- a/lib/lpp/lpp_top_lfr/lpp_lfr_filter_coeff.vhd
+++ b/lib/lpp/lpp_top_lfr/lpp_lfr_filter_coeff.vhd
@@ -57,7 +57,9 @@ PACKAGE BODY lpp_lfr_filter_coeff IS
     VARIABLE config_vector : STD_LOGIC_VECTOR((CEL_NUMBER * 5 * COEFFICIENT_SIZE)-1 DOWNTO 0);
     VARIABLE SOS_with_gain_array : COEFF_CEL_ARRAY_REAL(1 TO CEL_NUMBER);
     
-    VARIABLE SOS_with_gain_array_integer : COEFF_CEL_ARRAY_INTEGER(1 TO CEL_NUMBER);
+    VARIABLE SOS_with_gain_array_integer     : COEFF_CEL_ARRAY_INTEGER(1 TO CEL_NUMBER);
+
+    CONSTANT REAL_NEG : REAL := -1.0;
   BEGIN
 
     all_cel: FOR I IN 1 TO CEL_NUMBER LOOP
@@ -70,20 +72,26 @@ PACKAGE BODY lpp_lfr_filter_coeff IS
     END LOOP all_cel;
 
     all_cel_int: FOR I IN 1 TO CEL_NUMBER LOOP
-      all_param_int: FOR J IN 1 TO 6 LOOP
+      all_param_int: FOR J IN 1 TO 3 LOOP
         SOS_with_gain_array_integer(I)(J) := INTEGER( SOS_with_gain_array(I)(J) * REAL(2**(POINT_POSITION)) );
       END LOOP all_param_int;
-    END LOOP all_cel_int;
+      
+      ---------------------------------------------------------------------------
+      -- INVERSION of A param due to fact that IIR_CEL module make only MULT and MAC operation
+      all_param_int_a: FOR J IN 4 TO 6 LOOP
+        SOS_with_gain_array_integer(I)(J) := INTEGER( SOS_with_gain_array(I)(J) * REAL(2**(POINT_POSITION)) * REAL_NEG );
+      END LOOP all_param_int_a;
+      ---------------------------------------------------------------------------
+    END LOOP all_cel_int;    
 
+    
     all_cel_output: FOR I IN 1 TO CEL_NUMBER LOOP
       all_param_b_out: FOR J IN 1 TO 3 LOOP
-        config_vector( (((I-1)*5)+3-J)*COEFFICIENT_SIZE + COEFFICIENT_SIZE -1 DOWNTO (((I-1)*5)+3-J)*COEFFICIENT_SIZE )
-          := std_logic_vector(TO_SIGNED(SOS_with_gain_array_integer(I)(J),COEFFICIENT_SIZE ));
+        config_vector( (((I-1)*5)+3-J)*COEFFICIENT_SIZE + COEFFICIENT_SIZE -1 DOWNTO (((I-1)*5)+3-J)*COEFFICIENT_SIZE ) := std_logic_vector(TO_SIGNED(SOS_with_gain_array_integer(I)(J),COEFFICIENT_SIZE ));
       END LOOP all_param_b_out;
-      config_vector( (((I-1)*5)+3)*COEFFICIENT_SIZE + COEFFICIENT_SIZE -1 DOWNTO (((I-1)*5)+3)*COEFFICIENT_SIZE )
-          := std_logic_vector(TO_SIGNED(SOS_with_gain_array_integer(I)(6),COEFFICIENT_SIZE));
-      config_vector( (((I-1)*5)+4)*COEFFICIENT_SIZE + COEFFICIENT_SIZE -1 DOWNTO (((I-1)*5)+4)*COEFFICIENT_SIZE )
-          := std_logic_vector(TO_SIGNED(SOS_with_gain_array_integer(I)(5),COEFFICIENT_SIZE));
+      
+      config_vector( (((I-1)*5)+3)*COEFFICIENT_SIZE + COEFFICIENT_SIZE -1 DOWNTO (((I-1)*5)+3)*COEFFICIENT_SIZE ) := std_logic_vector(TO_SIGNED(SOS_with_gain_array_integer(I)(6),COEFFICIENT_SIZE)); --a2
+      config_vector( (((I-1)*5)+4)*COEFFICIENT_SIZE + COEFFICIENT_SIZE -1 DOWNTO (((I-1)*5)+4)*COEFFICIENT_SIZE ) := std_logic_vector(TO_SIGNED(SOS_with_gain_array_integer(I)(5),COEFFICIENT_SIZE)); --a1
     END LOOP all_cel_output;
 
     RETURN config_vector;