diff --git a/src/gui/chanOsc.cpp b/src/gui/chanOsc.cpp
index 49a31d2b0..f702fdb96 100644
--- a/src/gui/chanOsc.cpp
+++ b/src/gui/chanOsc.cpp
@@ -135,7 +135,7 @@ void FurnaceGUI::drawChanOsc() {
         ImGui::Text("Columns");
         ImGui::SameLine();
         ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::InputInt("##COSColumns",&chanOscCols,1,1)) {
+        if (ImGui::InputInt("##COSColumns",&chanOscCols,1,3)) {
           if (chanOscCols<1) chanOscCols=1;
           if (chanOscCols>64) chanOscCols=64;
         }
@@ -144,7 +144,7 @@ void FurnaceGUI::drawChanOsc() {
         ImGui::Text("Size (ms)");
         ImGui::SameLine();
         ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-        if (ImGui::InputFloat("##COSWinSize",&chanOscWindowSize,1.0f,1.0f)) {
+        if (ImGui::InputFloat("##COSWinSize",&chanOscWindowSize,1.0f,10.0f)) {
           if (chanOscWindowSize<1.0f) chanOscWindowSize=1.0f;
           if (chanOscWindowSize>50.0f) chanOscWindowSize=50.0f;
         }
diff --git a/src/gui/editControls.cpp b/src/gui/editControls.cpp
index b9b8a7409..040bcb2ad 100644
--- a/src/gui/editControls.cpp
+++ b/src/gui/editControls.cpp
@@ -687,7 +687,7 @@ void FurnaceGUI::drawEditControls() {
           ImGui::Text("Octave");
           ImGui::TableNextColumn();
           ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-          if (ImGui::InputInt("##Octave",&curOctave,1,1)) {
+          if (ImGui::InputInt("##Octave",&curOctave,1,3)) {
             if (curOctave>7) curOctave=7;
             if (curOctave<-5) curOctave=-5;
             e->autoNoteOffAll();
@@ -704,7 +704,7 @@ void FurnaceGUI::drawEditControls() {
           ImGui::Text("Edit Step");
           ImGui::TableNextColumn();
           ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
-          if (ImGui::InputInt("##EditStep",&editStep,1,1)) {
+          if (ImGui::InputInt("##EditStep",&editStep,1,3)) {
             if (editStep>=e->curSubSong->patLen) editStep=e->curSubSong->patLen-1;
             if (editStep<0) editStep=0;
 
@@ -835,7 +835,7 @@ void FurnaceGUI::drawEditControls() {
         ImGui::Text("Octave");
         ImGui::SameLine();
         ImGui::SetNextItemWidth(96.0f*dpiScale);
-        if (ImGui::InputInt("##Octave",&curOctave,1,1)) {
+        if (ImGui::InputInt("##Octave",&curOctave,1,3)) {
           if (curOctave>7) curOctave=7;
           if (curOctave<-5) curOctave=-5;
           e->autoNoteOffAll();
@@ -850,7 +850,7 @@ void FurnaceGUI::drawEditControls() {
         ImGui::Text("Edit Step");
         ImGui::SameLine();
         ImGui::SetNextItemWidth(96.0f*dpiScale);
-        if (ImGui::InputInt("##EditStep",&editStep,1,1)) {
+        if (ImGui::InputInt("##EditStep",&editStep,1,3)) {
           if (editStep>=e->curSubSong->patLen) editStep=e->curSubSong->patLen-1;
           if (editStep<0) editStep=0;
 
@@ -1094,7 +1094,7 @@ void FurnaceGUI::drawEditControls() {
         float cursor=ImGui::GetCursorPosX();
         float avail=ImGui::GetContentRegionAvail().x;
         ImGui::SetNextItemWidth(avail);
-        if (ImGui::InputInt("##Octave",&curOctave,1,1)) {
+        if (ImGui::InputInt("##Octave",&curOctave,1,3)) {
           if (curOctave>7) curOctave=7;
           if (curOctave<-5) curOctave=-5;
           e->autoNoteOffAll();
@@ -1110,7 +1110,7 @@ void FurnaceGUI::drawEditControls() {
         ImGui::SameLine();
         ImGui::SetCursorPosX(cursor);
         ImGui::SetNextItemWidth(avail);
-        if (ImGui::InputInt("##EditStep",&editStep,1,1)) {
+        if (ImGui::InputInt("##EditStep",&editStep,1,3)) {
           if (editStep>=e->curSubSong->patLen) editStep=e->curSubSong->patLen-1;
           if (editStep<0) editStep=0;
 
diff --git a/src/gui/findReplace.cpp b/src/gui/findReplace.cpp
index 5f0d63218..5e2825231 100644
--- a/src/gui/findReplace.cpp
+++ b/src/gui/findReplace.cpp
@@ -924,14 +924,14 @@ void FurnaceGUI::drawFindReplace() {
               if (queryReplaceIns>255) queryReplaceIns=255;
             }
           } else if (queryReplaceInsMode==GUI_QUERY_REPLACE_ADD || queryReplaceInsMode==GUI_QUERY_REPLACE_ADD_OVERFLOW) {
-            if (ImGui::InputInt("##IRValue",&queryReplaceIns,1,12)) {
+            if (ImGui::InputInt("##IRValue",&queryReplaceIns,1,16)) {
               if (queryReplaceIns<-255) queryReplaceIns=-255;
               if (queryReplaceIns>255) queryReplaceIns=255;
             }
           } else if (queryReplaceInsMode==GUI_QUERY_REPLACE_SCALE) {
             if (queryReplaceIns<0) queryReplaceIns=0;
             if (queryReplaceIns>400) queryReplaceIns=400;
-            if (ImGui::InputInt("##IRValue",&queryReplaceIns,1,12)) {
+            if (ImGui::InputInt("##IRValue",&queryReplaceIns,1,10)) {
               if (queryReplaceIns<0) queryReplaceIns=0;
               if (queryReplaceIns>400) queryReplaceIns=400;
             }
@@ -953,14 +953,14 @@ void FurnaceGUI::drawFindReplace() {
               if (queryReplaceVol>255) queryReplaceVol=255;
             }
           } else if (queryReplaceVolMode==GUI_QUERY_REPLACE_ADD || queryReplaceVolMode==GUI_QUERY_REPLACE_ADD_OVERFLOW) {
-            if (ImGui::InputInt("##VRValue",&queryReplaceVol,1,12)) {
+            if (ImGui::InputInt("##VRValue",&queryReplaceVol,1,16)) {
               if (queryReplaceVol<-255) queryReplaceVol=-255;
               if (queryReplaceVol>255) queryReplaceVol=255;
             }
           } else if (queryReplaceVolMode==GUI_QUERY_REPLACE_SCALE) {
             if (queryReplaceVol<0) queryReplaceVol=0;
             if (queryReplaceVol>400) queryReplaceVol=400;
-            if (ImGui::InputInt("##VRValue",&queryReplaceVol,1,12)) {
+            if (ImGui::InputInt("##VRValue",&queryReplaceVol,1,10)) {
               if (queryReplaceVol<0) queryReplaceVol=0;
               if (queryReplaceVol>400) queryReplaceVol=400;
             }
@@ -984,14 +984,14 @@ void FurnaceGUI::drawFindReplace() {
                 if (queryReplaceEffect[i]>255) queryReplaceEffect[i]=255;
               }
             } else if (queryReplaceEffectMode[i]==GUI_QUERY_REPLACE_ADD || queryReplaceEffectMode[i]==GUI_QUERY_REPLACE_ADD_OVERFLOW) {
-              if (ImGui::InputInt("##ERValue",&queryReplaceEffect[i],1,12)) {
+              if (ImGui::InputInt("##ERValue",&queryReplaceEffect[i],1,16)) {
                 if (queryReplaceEffect[i]<-255) queryReplaceEffect[i]=-255;
                 if (queryReplaceEffect[i]>255) queryReplaceEffect[i]=255;
               }
             } else if (queryReplaceEffectMode[i]==GUI_QUERY_REPLACE_SCALE) {
               if (queryReplaceEffect[i]<0) queryReplaceEffect[i]=0;
               if (queryReplaceEffect[i]>400) queryReplaceEffect[i]=400;
-              if (ImGui::InputInt("##ERValue",&queryReplaceEffect[i],1,12)) {
+              if (ImGui::InputInt("##ERValue",&queryReplaceEffect[i],1,10)) {
                 if (queryReplaceEffect[i]<0) queryReplaceEffect[i]=0;
                 if (queryReplaceEffect[i]>400) queryReplaceEffect[i]=400;
               }
@@ -1013,14 +1013,14 @@ void FurnaceGUI::drawFindReplace() {
                 if (queryReplaceEffectVal[i]>255) queryReplaceEffectVal[i]=255;
               }
             } else if (queryReplaceEffectValMode[i]==GUI_QUERY_REPLACE_ADD || queryReplaceEffectValMode[i]==GUI_QUERY_REPLACE_ADD_OVERFLOW) {
-              if (ImGui::InputInt("##ERValueV",&queryReplaceEffectVal[i],1,12)) {
+              if (ImGui::InputInt("##ERValueV",&queryReplaceEffectVal[i],1,16)) {
                 if (queryReplaceEffectVal[i]<-255) queryReplaceEffectVal[i]=-255;
                 if (queryReplaceEffectVal[i]>255) queryReplaceEffectVal[i]=255;
               }
             } else if (queryReplaceEffectValMode[i]==GUI_QUERY_REPLACE_SCALE) {
               if (queryReplaceEffectVal[i]<0) queryReplaceEffectVal[i]=0;
               if (queryReplaceEffectVal[i]>400) queryReplaceEffectVal[i]=400;
-              if (ImGui::InputInt("##ERValueV",&queryReplaceEffectVal[i],1,12)) {
+              if (ImGui::InputInt("##ERValueV",&queryReplaceEffectVal[i],1,10)) {
                 if (queryReplaceEffectVal[i]<0) queryReplaceEffectVal[i]=0;
                 if (queryReplaceEffectVal[i]>400) queryReplaceEffectVal[i]=400;
               }
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 0f12eff68..a9efea15b 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -2854,7 +2854,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
   ImGui::Text("transpose");
   ImGui::SameLine();
   ImGui::SetNextItemWidth(120.0f*dpiScale);
-  if (ImGui::InputInt("##TransposeAmount",&transposeAmount,1,1)) {
+  if (ImGui::InputInt("##TransposeAmount",&transposeAmount,1,12)) {
     if (transposeAmount<-96) transposeAmount=-96;
     if (transposeAmount>96) transposeAmount=96;
   }
@@ -2886,7 +2886,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
 
   if (!basicMode) {
     if (ImGui::BeginMenu("gradient/fade...")) {
-      if (ImGui::InputInt("Start",&fadeMin,1,1)) {
+      if (ImGui::InputInt("Start",&fadeMin,1,16)) {
         if (fadeMin<0) fadeMin=0;
         if (fadeMode) {
           if (fadeMin>15) fadeMin=15;
@@ -2894,7 +2894,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
           if (fadeMin>255) fadeMin=255;
         }
       }
-      if (ImGui::InputInt("End",&fadeMax,1,1)) {
+      if (ImGui::InputInt("End",&fadeMax,1,16)) {
         if (fadeMax<0) fadeMax=0;
         if (fadeMode) {
           if (fadeMax>15) fadeMax=15;
@@ -2918,7 +2918,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
       ImGui::EndMenu();
     }
     if (ImGui::BeginMenu("scale...")) {
-      if (ImGui::InputFloat("##ScaleMax",&scaleMax,1,1,"%.1f%%")) {
+      if (ImGui::InputFloat("##ScaleMax",&scaleMax,1,10,"%.1f%%")) {
         if (scaleMax<0.0f) scaleMax=0.0f;
         if (scaleMax>25600.0f) scaleMax=25600.0f;
       }
@@ -2929,7 +2929,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
       ImGui::EndMenu();
     }
     if (ImGui::BeginMenu("randomize...")) {
-      if (ImGui::InputInt("Minimum",&randomizeMin,1,1)) {
+      if (ImGui::InputInt("Minimum",&randomizeMin,1,16)) {
         if (randomizeMin<0) randomizeMin=0;
         if (randomMode) {
           if (randomizeMin>15) randomizeMin=15;
@@ -2938,7 +2938,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
         }
         if (randomizeMin>randomizeMax) randomizeMin=randomizeMax;
       }
-      if (ImGui::InputInt("Maximum",&randomizeMax,1,1)) {
+      if (ImGui::InputInt("Maximum",&randomizeMax,1,16)) {
         if (randomizeMax<0) randomizeMax=0;
         if (randomizeMax<randomizeMin) randomizeMax=randomizeMin;
         if (randomMode) {
@@ -2970,7 +2970,7 @@ void FurnaceGUI::editOptions(bool topMenu) {
     if (ImGui::MenuItem("flip selection",BIND_FOR(GUI_ACTION_PAT_FLIP_SELECTION))) doFlip();
 
     ImGui::SetNextItemWidth(120.0f*dpiScale);
-    if (ImGui::InputInt("collapse/expand amount##CollapseAmount",&collapseAmount,1,1)) {
+    if (ImGui::InputInt("collapse/expand amount##CollapseAmount",&collapseAmount,1,4)) {
       if (collapseAmount<2) collapseAmount=2;
       if (collapseAmount>256) collapseAmount=256;
     }
@@ -4212,7 +4212,7 @@ bool FurnaceGUI::loop() {
           if (ImGui::BeginMenu("export ZSM...")) {
             exitDisabledTimer=1;
             ImGui::Text("Commander X16 Zsound Music File");
-            if (ImGui::InputInt("Tick Rate (Hz)",&zsmExportTickRate,1,2)) {
+            if (ImGui::InputInt("Tick Rate (Hz)",&zsmExportTickRate,1,10)) {
               if (zsmExportTickRate<1) zsmExportTickRate=1;
               if (zsmExportTickRate>44100) zsmExportTickRate=44100;
             }
@@ -6088,7 +6088,7 @@ bool FurnaceGUI::loop() {
         ImGui::Text("Channels");
         ImGui::SameLine();
         ImGui::SetNextItemWidth(120.0f*dpiScale);
-        if (ImGui::InputInt("##RSChans",&pendingRawSampleChannels)) {
+        if (ImGui::InputInt("##RSChans",&pendingRawSampleChannels,1,2)) {
         }
         ImGui::Text("(will be mixed down to mono)");
         ImGui::Checkbox("Unsigned",&pendingRawSampleUnsigned);
diff --git a/src/gui/insEdit.cpp b/src/gui/insEdit.cpp
index 35c7273f5..3e2eb578d 100644
--- a/src/gui/insEdit.cpp
+++ b/src/gui/insEdit.cpp
@@ -1858,7 +1858,7 @@ void FurnaceGUI::drawMacros(std::vector<FurnaceGUIMacroDesc>& macros, FurnaceGUI
         float lenAvail=ImGui::GetContentRegionAvail().x;
         //ImGui::Dummy(ImVec2(120.0f*dpiScale,dpiScale));
         ImGui::SetNextItemWidth(120.0f*dpiScale);
-        if (ImGui::InputInt("##MacroPointSize",&macroPointSize,1,16)) {
+        if (ImGui::InputInt("##MacroPointSize",&macroPointSize,1,4)) {
           if (macroPointSize<1) macroPointSize=1;
           if (macroPointSize>256) macroPointSize=256;
         }
@@ -2064,7 +2064,7 @@ void FurnaceGUI::drawMacros(std::vector<FurnaceGUIMacroDesc>& macros, FurnaceGUI
           ImGui::Button(ICON_FA_SEARCH_PLUS "##MacroZoomB");
           if (ImGui::BeginPopupContextItem("MacroZoomP",ImGuiPopupFlags_MouseButtonLeft)) {
             ImGui::SetNextItemWidth(120.0f*dpiScale);
-            if (ImGui::InputInt("##MacroPointSize",&macroPointSize,1,16)) {
+            if (ImGui::InputInt("##MacroPointSize",&macroPointSize,1,4)) {
               if (macroPointSize<1) macroPointSize=1;
               if (macroPointSize>256) macroPointSize=256;
             }
@@ -2250,7 +2250,7 @@ void FurnaceGUI::alterSampleMap(int column, int val) {
     } \
   } \
   ImGui::TableNextColumn(); \
-  if (ImGui::InputInt(df,&fNum,1,1)) { \
+  if (ImGui::InputInt(df,&fNum,1,16)) { \
     if (fNum<0) fNum=0; \
     if (ins->type==DIV_INS_OPLL) { \
       if (fNum>511) fNum=511; \
@@ -4799,7 +4799,7 @@ void FurnaceGUI::drawInsEdit() {
                     int len=ins->gb.hwSeq[i].data+1;
                     curFrame+=ins->gb.hwSeq[i].data+1;
 
-                    if (ImGui::InputInt("Ticks",&len)) {
+                    if (ImGui::InputInt("Ticks",&len,1,4)) {
                       if (len<1) len=1;
                       if (len>255) len=256;
                       somethingChanged=true;
@@ -4818,7 +4818,7 @@ void FurnaceGUI::drawInsEdit() {
                   case DivInstrumentGB::DIV_GB_HWCMD_LOOP_REL: {
                     int pos=ins->gb.hwSeq[i].data;
 
-                    if (ImGui::InputInt("Position",&pos)) {
+                    if (ImGui::InputInt("Position",&pos,1,1)) {
                       if (pos<0) pos=0;
                       if (pos>(ins->gb.hwSeqLen-1)) pos=(ins->gb.hwSeqLen-1);
                       somethingChanged=true;
@@ -5159,7 +5159,7 @@ void FurnaceGUI::drawInsEdit() {
                   case DivInstrumentSoundUnit::DIV_SU_HWCMD_LOOP_REL: {
                     int pos=ins->su.hwSeq[i].val;
 
-                    if (ImGui::InputInt("Position",&pos)) {
+                    if (ImGui::InputInt("Position",&pos,1,4)) {
                       if (pos<0) pos=0;
                       if (pos>(ins->su.hwSeqLen-1)) pos=(ins->su.hwSeqLen-1);
                       somethingChanged=true;
@@ -5354,7 +5354,7 @@ void FurnaceGUI::drawInsEdit() {
           if (ImGui::IsItemHovered()) {
             ImGui::SetTooltip("only use for compatibility with .dmf modules!\n- initializes modulation table with first wavetable\n- does not alter modulation parameters on instrument change");
           }
-          if (ImGui::InputInt("Modulation depth",&ins->fds.modDepth,1,32)) {
+          if (ImGui::InputInt("Modulation depth",&ins->fds.modDepth,1,4)) {
             if (ins->fds.modDepth<0) ins->fds.modDepth=0;
             if (ins->fds.modDepth>63) ins->fds.modDepth=63;
           }
@@ -5938,23 +5938,23 @@ void FurnaceGUI::drawInsEdit() {
                 ImGui::EndTable();
               }
 
-              if (ImGui::InputScalar("Update Rate",ImGuiDataType_U8,&ins->ws.rateDivider,&_ONE,&_SEVEN)) {
+              if (ImGui::InputScalar("Update Rate",ImGuiDataType_U8,&ins->ws.rateDivider,&_ONE,&_EIGHT)) {
                 wavePreviewInit=true;
               }
               int speed=ins->ws.speed+1;
-              if (ImGui::InputInt("Speed",&speed,1,16)) {
+              if (ImGui::InputInt("Speed",&speed,1,8)) {
                 if (speed<1) speed=1;
                 if (speed>256) speed=256;
                 ins->ws.speed=speed-1;
                 wavePreviewInit=true;
               }
 
-              if (ImGui::InputScalar("Amount",ImGuiDataType_U8,&ins->ws.param1,&_ONE,&_SEVEN)) {
+              if (ImGui::InputScalar("Amount",ImGuiDataType_U8,&ins->ws.param1,&_ONE,&_EIGHT)) {
                 wavePreviewInit=true;
               }
 
               if (ins->ws.effect==DIV_WS_PHASE_MOD) {
-                if (ImGui::InputScalar("Power",ImGuiDataType_U8,&ins->ws.param2,&_ONE,&_SEVEN)) {
+                if (ImGui::InputScalar("Power",ImGuiDataType_U8,&ins->ws.param2,&_ONE,&_EIGHT)) {
                   wavePreviewInit=true;
                 }
               }
diff --git a/src/gui/intConst.cpp b/src/gui/intConst.cpp
index 167fdd7e8..09a988e84 100644
--- a/src/gui/intConst.cpp
+++ b/src/gui/intConst.cpp
@@ -22,7 +22,9 @@
 const int _ZERO=0;
 const int _ONE=1;
 const int _THREE=3;
+const int _FOUR=4;
 const int _SEVEN=7;
+const int _EIGHT=8;
 const int _TEN=10;
 const int _FIFTEEN=15;
 const int _SIXTEEN=16;
diff --git a/src/gui/intConst.h b/src/gui/intConst.h
index 082f421a7..153fc868c 100644
--- a/src/gui/intConst.h
+++ b/src/gui/intConst.h
@@ -24,7 +24,9 @@
 extern const int _ZERO;
 extern const int _ONE;
 extern const int _THREE;
+extern const int _FOUR;
 extern const int _SEVEN;
+extern const int _EIGHT;
 extern const int _TEN;
 extern const int _FIFTEEN;
 extern const int _SIXTEEN;
diff --git a/src/gui/sampleEdit.cpp b/src/gui/sampleEdit.cpp
index 5c070eebc..fea0ef2ba 100644
--- a/src/gui/sampleEdit.cpp
+++ b/src/gui/sampleEdit.cpp
@@ -1123,11 +1123,11 @@ void FurnaceGUI::drawSampleEdit() {
         float highP=sampleFilterH*100.0f;
         float resP=sampleFilterRes*100.0f;
         ImGui::Text("Cutoff:");
-        if (ImGui::InputFloat("From",&sampleFilterCutStart,1.0f,100.0f,"%.0f")) {
+        if (ImGui::InputFloat("From",&sampleFilterCutStart,10.0f,1000.0f,"%.0f")) {
           if (sampleFilterCutStart<0.0) sampleFilterCutStart=0.0;
           if (sampleFilterCutStart>sample->rate*0.5) sampleFilterCutStart=sample->rate*0.5;
         }
-        if (ImGui::InputFloat("To",&sampleFilterCutEnd,1.0f,100.0f,"%.0f")) {
+        if (ImGui::InputFloat("To",&sampleFilterCutEnd,1.00f,1000.0f,"%.0f")) {
           if (sampleFilterCutEnd<0.0) sampleFilterCutEnd=0.0;
           if (sampleFilterCutEnd>sample->rate*0.5) sampleFilterCutEnd=sample->rate*0.5;
         }
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index d5cf926e5..415b93959 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -444,7 +444,7 @@ void FurnaceGUI::drawSettings() {
         }
 
         pushWarningColor(settings.chanOscThreads>cpuCores,settings.chanOscThreads>(cpuCores*2));
-        if (ImGui::InputInt("Per-channel oscilloscope threads",&settings.chanOscThreads)) {
+        if (ImGui::InputInt("Per-channel oscilloscope threads",&settings.chanOscThreads,1,4)) {
           if (settings.chanOscThreads<0) settings.chanOscThreads=0;
           if (settings.chanOscThreads>(cpuCores*3)) settings.chanOscThreads=cpuCores*3;
           if (settings.chanOscThreads>256) settings.chanOscThreads=256;
@@ -474,7 +474,7 @@ void FurnaceGUI::drawSettings() {
           settingsChanged=true;
         }
 
-        if (ImGui::InputInt("Number of recent files",&settings.maxRecentFile)) {
+        if (ImGui::InputInt("Number of recent files",&settings.maxRecentFile,1,5)) {
           if (settings.maxRecentFile<0) settings.maxRecentFile=0;
           if (settings.maxRecentFile>30) settings.maxRecentFile=30;
           settingsChanged=true;
@@ -957,7 +957,7 @@ void FurnaceGUI::drawSettings() {
             ImGui::AlignTextToFramePadding();
             ImGui::Text("Outputs");
             ImGui::TableNextColumn();
-            if (ImGui::InputInt("##AudioChansI",&settings.audioChans,1,1)) {
+            if (ImGui::InputInt("##AudioChansI",&settings.audioChans,1,2)) {
               if (settings.audioChans<1) settings.audioChans=1;
               if (settings.audioChans>16) settings.audioChans=16;
               settingsChanged=true;
@@ -1011,7 +1011,7 @@ void FurnaceGUI::drawSettings() {
 
           if (renderPoolThreadsB) {
             pushWarningColor(settings.renderPoolThreads>cpuCores,settings.renderPoolThreads>cpuCores);
-            if (ImGui::InputInt("Number of threads",&settings.renderPoolThreads)) {
+            if (ImGui::InputInt("Number of threads",&settings.renderPoolThreads,1,4)) {
               if (settings.renderPoolThreads<2) settings.renderPoolThreads=2;
               if (settings.renderPoolThreads>32) settings.renderPoolThreads=32;
               settingsChanged=true;
@@ -1781,7 +1781,7 @@ void FurnaceGUI::drawSettings() {
               ImGui::TableNextColumn();
               if (i.val<100) {
                 snprintf(id,4095,"##SNValue_%d",i.scan);
-                if (ImGui::InputInt(id,&i.val,1,1)) {
+                if (ImGui::InputInt(id,&i.val,1,12)) {
                   if (i.val<0) i.val=0;
                   if (i.val>96) i.val=96;
                   noteKeys[i.scan]=i.val;
@@ -2398,7 +2398,7 @@ void FurnaceGUI::drawSettings() {
           } rightClickable
         }
 
-        if (ImGui::InputInt("Icon size",&settings.iconSize)) {
+        if (ImGui::InputInt("Icon size",&settings.iconSize,1,3)) {
           if (settings.iconSize<3) settings.iconSize=3;
           if (settings.iconSize>48) settings.iconSize=48;
           settingsChanged=true;
@@ -2434,7 +2434,7 @@ void FurnaceGUI::drawSettings() {
               settingsChanged=true;
             }
           }
-          if (ImGui::InputInt("Size##MainFontSize",&settings.mainFontSize)) {
+          if (ImGui::InputInt("Size##MainFontSize",&settings.mainFontSize,1,3)) {
             if (settings.mainFontSize<3) settings.mainFontSize=3;
             if (settings.mainFontSize>96) settings.mainFontSize=96;
             settingsChanged=true;
@@ -2453,7 +2453,7 @@ void FurnaceGUI::drawSettings() {
               settingsChanged=true;
             }
           }
-          if (ImGui::InputInt("Size##HeadFontSize",&settings.headFontSize)) {
+          if (ImGui::InputInt("Size##HeadFontSize",&settings.headFontSize,1,3)) {
             if (settings.headFontSize<3) settings.headFontSize=3;
             if (settings.headFontSize>96) settings.headFontSize=96;
             settingsChanged=true;
@@ -2472,7 +2472,7 @@ void FurnaceGUI::drawSettings() {
               settingsChanged=true;
             }
           }
-          if (ImGui::InputInt("Size##PatFontSize",&settings.patFontSize)) {
+          if (ImGui::InputInt("Size##PatFontSize",&settings.patFontSize,1,3)) {
             if (settings.patFontSize<3) settings.patFontSize=3;
             if (settings.patFontSize>96) settings.patFontSize=96;
             settingsChanged=true;
diff --git a/src/gui/songInfo.cpp b/src/gui/songInfo.cpp
index 8091fab1e..7c9b6063b 100644
--- a/src/gui/songInfo.cpp
+++ b/src/gui/songInfo.cpp
@@ -108,7 +108,7 @@ void FurnaceGUI::drawSongInfo(bool asChild) {
       float tune=e->song.tuning;
       float avail=ImGui::GetContentRegionAvail().x;
       ImGui::SetNextItemWidth(avail);
-      if (ImGui::InputFloat("##Tuning",&tune,1.0f,3.0f,"%g")) { MARK_MODIFIED
+      if (ImGui::InputFloat("##Tuning",&tune,1.0f,10.0f,"%g")) { MARK_MODIFIED
         if (tune<220.0f) tune=220.0f;
         if (tune>880.0f) tune=880.0f;
         e->song.tuning=tune;
diff --git a/src/gui/speed.cpp b/src/gui/speed.cpp
index 593467852..b9b4988bc 100644
--- a/src/gui/speed.cpp
+++ b/src/gui/speed.cpp
@@ -53,7 +53,7 @@ void FurnaceGUI::drawSpeed(bool asChild) {
       float halfAvail=(avail-ImGui::GetStyle().ItemSpacing.x)*0.5;
       ImGui::SetNextItemWidth(halfAvail);
       float setHz=tempoView?e->curSubSong->hz*2.5:e->curSubSong->hz;
-      if (ImGui::InputFloat("##Rate",&setHz,1.0f,1.0f,"%g")) { MARK_MODIFIED
+      if (ImGui::InputFloat("##Rate",&setHz,1.0f,10.0f,"%g")) { MARK_MODIFIED
         if (tempoView) setHz/=2.5;
         if (setHz<1) setHz=1;
         if (setHz>999) setHz=999;
@@ -169,7 +169,7 @@ void FurnaceGUI::drawSpeed(bool asChild) {
         ImGui::Text("Virtual Tempo");
         ImGui::TableNextColumn();
         ImGui::SetNextItemWidth(halfAvail);
-        if (ImGui::InputScalar("##VTempoN",ImGuiDataType_S16,&e->curSubSong->virtualTempoN,&_ONE,&_THREE)) { MARK_MODIFIED
+        if (ImGui::InputScalar("##VTempoN",ImGuiDataType_S16,&e->curSubSong->virtualTempoN,&_ONE,&_TEN)) { MARK_MODIFIED
           if (e->curSubSong->virtualTempoN<1) e->curSubSong->virtualTempoN=1;
           if (e->curSubSong->virtualTempoN>255) e->curSubSong->virtualTempoN=255;
         }
@@ -178,7 +178,7 @@ void FurnaceGUI::drawSpeed(bool asChild) {
         }
         ImGui::SameLine();
         ImGui::SetNextItemWidth(halfAvail);
-        if (ImGui::InputScalar("##VTempoD",ImGuiDataType_S16,&e->curSubSong->virtualTempoD,&_ONE,&_THREE)) { MARK_MODIFIED
+        if (ImGui::InputScalar("##VTempoD",ImGuiDataType_S16,&e->curSubSong->virtualTempoD,&_ONE,&_TEN)) { MARK_MODIFIED
           if (e->curSubSong->virtualTempoD<1) e->curSubSong->virtualTempoD=1;
           if (e->curSubSong->virtualTempoD>255) e->curSubSong->virtualTempoD=255;
         }
@@ -208,12 +208,12 @@ void FurnaceGUI::drawSpeed(bool asChild) {
       ImGui::Text("Highlight");
       ImGui::TableNextColumn();
       ImGui::SetNextItemWidth(halfAvail);
-      if (ImGui::InputScalar("##Highlight1",ImGuiDataType_U8,&e->curSubSong->hilightA,&_ONE,&_THREE)) {
+      if (ImGui::InputScalar("##Highlight1",ImGuiDataType_U8,&e->curSubSong->hilightA,&_ONE,&_FOUR)) {
         MARK_MODIFIED;
       }
       ImGui::SameLine();
       ImGui::SetNextItemWidth(halfAvail);
-      if (ImGui::InputScalar("##Highlight2",ImGuiDataType_U8,&e->curSubSong->hilightB,&_ONE,&_THREE)) {
+      if (ImGui::InputScalar("##Highlight2",ImGuiDataType_U8,&e->curSubSong->hilightB,&_ONE,&_FOUR)) {
         MARK_MODIFIED;
       }
       ImGui::EndTable();
@@ -233,7 +233,7 @@ void FurnaceGUI::drawSpeed(bool asChild) {
       float avail=ImGui::GetContentRegionAvail().x;
       ImGui::SetNextItemWidth(avail);
       int patLen=e->curSubSong->patLen;
-      if (ImGui::InputInt("##PatLength",&patLen,1,3)) { MARK_MODIFIED
+      if (ImGui::InputInt("##PatLength",&patLen,1,16)) { MARK_MODIFIED
         if (patLen<1) patLen=1;
         if (patLen>DIV_MAX_PATTERNS) patLen=DIV_MAX_PATTERNS;
         e->curSubSong->patLen=patLen;
@@ -247,7 +247,7 @@ void FurnaceGUI::drawSpeed(bool asChild) {
         ImGui::TableNextColumn();
         ImGui::SetNextItemWidth(avail);
         int ordLen=e->curSubSong->ordersLen;
-        if (ImGui::InputInt("##OrdLength",&ordLen,1,3)) { MARK_MODIFIED
+        if (ImGui::InputInt("##OrdLength",&ordLen,1,4)) { MARK_MODIFIED
           if (ordLen<1) ordLen=1;
           if (ordLen>DIV_MAX_PATTERNS) ordLen=DIV_MAX_PATTERNS;
           e->curSubSong->ordersLen=ordLen;
diff --git a/src/gui/sysConf.cpp b/src/gui/sysConf.cpp
index 64cceb526..99baf47e4 100644
--- a/src/gui/sysConf.cpp
+++ b/src/gui/sysConf.cpp
@@ -2306,7 +2306,7 @@ bool FurnaceGUI::drawSysConf(int chan, int sysPos, DivSystem type, DivConfig& fl
       altered=true;
     }
     ImGui::Indent();
-    if (ImGui::InputInt("Hz",&customClock)) {
+    if (ImGui::InputInt("Hz",&customClock,100,10000)) {
       if (customClock<MIN_CUSTOM_CLOCK) customClock=0;
       if (customClock>MAX_CUSTOM_CLOCK) customClock=MAX_CUSTOM_CLOCK;
       altered=true;
diff --git a/src/gui/waveEdit.cpp b/src/gui/waveEdit.cpp
index de7cee606..cb4cf0462 100644
--- a/src/gui/waveEdit.cpp
+++ b/src/gui/waveEdit.cpp
@@ -455,7 +455,7 @@ void FurnaceGUI::drawWaveEdit() {
 
         ImGui::TableNextColumn();
         ImGui::SetNextItemWidth(80.0f*dpiScale);
-        if (ImGui::InputInt("##CurWave",&curWave,1,1)) {
+        if (ImGui::InputInt("##CurWave",&curWave,1,10)) {
           if (curWave<0) curWave=0;
           if (curWave>=(int)e->song.wave.size()) curWave=e->song.wave.size()-1;
         }
@@ -499,7 +499,7 @@ void FurnaceGUI::drawWaveEdit() {
         }
         ImGui::SameLine();
         ImGui::SetNextItemWidth(96.0f*dpiScale);
-        if (ImGui::InputInt("##_WTW",&wave->len,1,2)) {
+        if (ImGui::InputInt("##_WTW",&wave->len,1,16)) {
           if (wave->len>256) wave->len=256;
           if (wave->len<1) wave->len=1;
           e->notifyWaveChange(curWave);
@@ -514,7 +514,7 @@ void FurnaceGUI::drawWaveEdit() {
         ImGui::SameLine();
         ImGui::SetNextItemWidth(96.0f*dpiScale);
         int realMax=wave->max+1;
-        if (ImGui::InputInt("##_WTH",&realMax,1,2)) {
+        if (ImGui::InputInt("##_WTH",&realMax,1,16)) {
           if (realMax>256) realMax=256;
           if (realMax<2) realMax=2;
           wave->max=realMax-1;