diff --git a/src/engine/dispatch.h b/src/engine/dispatch.h
index 81753c9b7..758fcb2fa 100644
--- a/src/engine/dispatch.h
+++ b/src/engine/dispatch.h
@@ -272,6 +272,12 @@ enum DivDispatchCmds {
   DIV_CMD_SID3_WAVE_MIX,
   DIV_CMD_SID3_LFSR_FEEDBACK_BITS,
   DIV_CMD_SID3_1_BIT_NOISE,
+  DIV_CMD_SID3_FILTER_DISTORTION,
+  DIV_CMD_SID3_FILTER_OUTPUT_VOLUME,
+  DIV_CMD_SID3_CHANNEL_INVERSION,
+  DIV_CMD_SID3_FILTER_CONNECTION,
+  DIV_CMD_SID3_FILTER_MATRIX,
+  DIV_CMD_SID3_FILTER_ENABLE,
 
   DIV_CMD_MAX
 };
diff --git a/src/engine/platform/sid3.cpp b/src/engine/platform/sid3.cpp
index 222fecc01..7e494c288 100644
--- a/src/engine/platform/sid3.cpp
+++ b/src/engine/platform/sid3.cpp
@@ -954,6 +954,14 @@ int DivPlatformSID3::dispatch(DivCommand c) {
       chan[c.chan].duty = (c.value & 0xfff) << 4;
       updateDuty(c.chan);
       break;
+    case DIV_CMD_FM_FB:
+      chan[c.chan].feedback = c.value & 0xff;
+      rWrite(SID3_REGISTER_FEEDBACK + c.chan * SID3_REGISTERS_PER_CHANNEL, chan[c.chan].feedback);
+      break;
+    case DIV_CMD_SID3_CHANNEL_INVERSION:
+      chan[c.chan].phaseInv = c.value & 3;
+      rWrite(SID3_REGISTER_PHASE_INVERSION + c.chan * SID3_REGISTERS_PER_CHANNEL, chan[c.chan].phaseInv);
+      break;
     case DIV_CMD_C64_FINE_CUTOFF:
       chan[c.chan].filt[c.value2].cutoff = (c.value & 0xfff) << 4;
       updateFilter(c.chan, c.value2);
@@ -962,6 +970,35 @@ int DivPlatformSID3::dispatch(DivCommand c) {
       chan[c.chan].filt[c.value2].resonance = c.value & 0xff;
       updateFilter(c.chan, c.value2);
       break;
+    case DIV_CMD_SID3_FILTER_OUTPUT_VOLUME:
+      chan[c.chan].filt[c.value2].output_volume = c.value & 0xff;
+      updateFilter(c.chan, c.value2);
+      break;
+    case DIV_CMD_SID3_FILTER_DISTORTION:
+      chan[c.chan].filt[c.value2].distortion_level = c.value & 0xff;
+      updateFilter(c.chan, c.value2);
+      break;
+    case DIV_CMD_C64_FILTER_MODE:
+      chan[c.chan].filt[(c.value >> 4) & 3].mode &= ~(SID3_FILTER_LP | SID3_FILTER_HP | SID3_FILTER_BP);
+      if(c.value & 1) chan[c.chan].filt[(c.value >> 4) & 3].mode |= SID3_FILTER_LP;
+      if(c.value & 2) chan[c.chan].filt[(c.value >> 4) & 3].mode |= SID3_FILTER_BP;
+      if(c.value & 4) chan[c.chan].filt[(c.value >> 4) & 3].mode |= SID3_FILTER_HP;
+      updateFilter(c.chan, (c.value >> 4) & 3);
+      break;
+    case DIV_CMD_SID3_FILTER_CONNECTION:
+      chan[c.chan].filt[(c.value >> 4) & 3].mode &= ~(SID3_FILTER_CHANNEL_INPUT | SID3_FILTER_OUTPUT);
+      if(c.value & 1) chan[c.chan].filt[(c.value >> 4) & 3].mode |= SID3_FILTER_CHANNEL_INPUT;
+      if(c.value & 2) chan[c.chan].filt[(c.value >> 4) & 3].mode |= SID3_FILTER_OUTPUT;
+      updateFilter(c.chan, (c.value >> 4) & 3);
+      break;
+    case DIV_CMD_SID3_FILTER_MATRIX:
+      chan[c.chan].filt[(c.value >> 4) & 3].filter_matrix = c.value & 0xf;
+      updateFilter(c.chan, (c.value >> 4) & 3);
+      break;
+    case DIV_CMD_SID3_FILTER_ENABLE:
+      chan[c.chan].filt[(c.value >> 4) & 3].enabled = c.value & 1;
+      updateFilter(c.chan, (c.value >> 4) & 3);
+      break;
     case DIV_CMD_SAMPLE_POS:
       chan[c.chan].dacPos=c.value;
       break;
diff --git a/src/engine/playback.cpp b/src/engine/playback.cpp
index 063dea01f..1455ff83c 100644
--- a/src/engine/playback.cpp
+++ b/src/engine/playback.cpp
@@ -272,6 +272,12 @@ const char* cmdName[]={
   "SID3_WAVE_MIX",
   "SID3_LFSR_FEEDBACK_BITS",
   "SID3_1_BIT_NOISE",
+  "SID3_FILTER_DISTORTION",
+  "SID3_FILTER_OUTPUT_VOLUME",
+  "SID3_CHANNEL_INVERSION",
+  "SID3_FILTER_CONNECTION",
+  "SID3_FILTER_MATRIX",
+  "SID3_FILTER_ENABLE",
 };
 
 static_assert((sizeof(cmdName)/sizeof(void*))==DIV_CMD_MAX,"update cmdName!");
diff --git a/src/engine/sysDef.cpp b/src/engine/sysDef.cpp
index 6ee2a1323..efac5408f 100644
--- a/src/engine/sysDef.cpp
+++ b/src/engine/sysDef.cpp
@@ -719,6 +719,24 @@ void DivEngine::registerSystems() {
     {0x74, {DIV_CMD_C64_RESONANCE, _("74xx: Set filter 4 resonance"), effectVal, constVal<3>}},
 
     {0x75, {DIV_CMD_SID3_1_BIT_NOISE, _("75xx: Set noise mode (0: usual noise, 1: 1-bit noise (PCM mode on wave channel))")}},
+
+    {0x76, {DIV_CMD_SID3_FILTER_OUTPUT_VOLUME, _("76xx: Set filter 1 output volume"), effectVal, constVal<0>}},
+    {0x77, {DIV_CMD_SID3_FILTER_OUTPUT_VOLUME, _("77xx: Set filter 2 output volume"), effectVal, constVal<1>}},
+    {0x78, {DIV_CMD_SID3_FILTER_OUTPUT_VOLUME, _("78xx: Set filter 3 output volume"), effectVal, constVal<2>}},
+    {0x79, {DIV_CMD_SID3_FILTER_OUTPUT_VOLUME, _("79xx: Set filter 4 output volume"), effectVal, constVal<3>}},
+
+    {0x7A, {DIV_CMD_SID3_FILTER_DISTORTION, _("7Axx: Set filter 1 distortion"), effectVal, constVal<0>}},
+    {0x7B, {DIV_CMD_SID3_FILTER_DISTORTION, _("7Bxx: Set filter 2 distortion"), effectVal, constVal<1>}},
+    {0x7C, {DIV_CMD_SID3_FILTER_DISTORTION, _("7Cxx: Set filter 3 distortion"), effectVal, constVal<2>}},
+    {0x7D, {DIV_CMD_SID3_FILTER_DISTORTION, _("7Dxx: Set filter 4 distortion"), effectVal, constVal<3>}},
+
+    {0x7E, {DIV_CMD_FM_FB, _("7Exx: Set feedback")}},
+    {0x7F, {DIV_CMD_SID3_CHANNEL_INVERSION, _("7Fxx: Set channel signal inversion (bit 0: right channel, bit 1: left channel)")}},
+
+    {0xA0, {DIV_CMD_C64_FILTER_MODE, _("A0xy: Set filter mode (x: filter (0-3); y: bit 0: low pass; bit 1: band pass; bit 2: high pass)")}},
+    {0xA1, {DIV_CMD_SID3_FILTER_CONNECTION, _("A1xy: Set filter connection (x: filter (0-3); y: bit 0: connect to channel input; bit 1: connect to channel output)")}},
+    {0xA2, {DIV_CMD_SID3_FILTER_MATRIX, _("A2xy: Set filter connection matrix (x: filter (0-3); y: bits 0-3: add filter 1-4 output to filter's input)")}},
+    {0xA3, {DIV_CMD_SID3_FILTER_ENABLE, _("A3xy: Enable filter (x: filter (0-3); y: enable)")}},
   };
 
   const EffectHandler SID3FineDutyHandler(DIV_CMD_C64_FINE_DUTY, _("5xxx: Set pulse width (0 to FFF)"), effectValLong<12>);
diff --git a/src/gui/guiConst.cpp b/src/gui/guiConst.cpp
index cebfcd0e0..473c6ea07 100644
--- a/src/gui/guiConst.cpp
+++ b/src/gui/guiConst.cpp
@@ -417,10 +417,10 @@ const FurnaceGUIColors fxColors[256]={
   GUI_COLOR_PATTERN_EFFECT_MISC,
 
   // A0-AF
-  GUI_COLOR_PATTERN_EFFECT_INVALID,
-  GUI_COLOR_PATTERN_EFFECT_INVALID,
-  GUI_COLOR_PATTERN_EFFECT_INVALID,
-  GUI_COLOR_PATTERN_EFFECT_INVALID,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
+  GUI_COLOR_PATTERN_EFFECT_SYS_PRIMARY,
   GUI_COLOR_PATTERN_EFFECT_INVALID,
   GUI_COLOR_PATTERN_EFFECT_INVALID,
   GUI_COLOR_PATTERN_EFFECT_INVALID,