diff --git a/lib/grit/eurorack/hades.cpp b/lib/grit/eurorack/hades.cpp
index 1d7911f..3047f06 100644
--- a/lib/grit/eurorack/hades.cpp
+++ b/lib/grit/eurorack/hades.cpp
@@ -91,11 +91,11 @@ auto Hades::Amp::prepare(float sampleRate) -> void
 auto Hades::Amp::operator()(float sample) -> float
 {
     switch (_index) {
-        // case TanhIndex: return _tanh(sample);
-        // case HardIndex: return _hard(sample);
-        // case FullWaveIndex: return _fullWave(sample);
-        // case HalfWaveIndex: return _halfWave(sample);
-        // case DiodeIndex: return _diode(sample);
+        case TanhIndex: return _tanh(sample);
+        case HardIndex: return _hard(sample);
+        case FullWaveIndex: return _fullWave(sample);
+        case HalfWaveIndex: return _halfWave(sample);
+        case DiodeIndex: return _diode(sample);
         case FireAmpIndex: return _fireAmp(sample);
         case GrindAmpIndex: return _grindAmp(sample);
         default: break;
diff --git a/lib/grit/eurorack/hades.hpp b/lib/grit/eurorack/hades.hpp
index 54a625f..54af576 100644
--- a/lib/grit/eurorack/hades.hpp
+++ b/lib/grit/eurorack/hades.hpp
@@ -70,22 +70,22 @@ struct Hades
     private:
         enum Index : int
         {
-            // TanhIndex = 0,
-            // HardIndex,
-            // FullWaveIndex,
-            // HalfWaveIndex,
-            // DiodeIndex,
+            TanhIndex = 0,
+            HardIndex,
+            FullWaveIndex,
+            HalfWaveIndex,
+            DiodeIndex,
             FireAmpIndex,
             GrindAmpIndex,
             MaxIndex,
         };
 
-        Index _index{FireAmpIndex};
-        // TanhClipper<float> _tanh{};
-        // HardClipper<float> _hard{};
-        // FullWaveRectifier<float> _fullWave{};
-        // HalfWaveRectifier<float> _halfWave{};
-        // DiodeRectifier<float> _diode{};
+        Index _index{TanhIndex};
+        TanhClipper<float> _tanh{};
+        HardClipper<float> _hard{};
+        FullWaveRectifier<float> _fullWave{};
+        HalfWaveRectifier<float> _halfWave{};
+        DiodeRectifier<float> _diode{};
         AirWindowsFireAmp<float> _fireAmp{};
         AirWindowsGrindAmp<float> _grindAmp{};
     };
diff --git a/lib/grit/eurorack/hades_test.cpp b/lib/grit/eurorack/hades_test.cpp
index b1120f9..2513265 100644
--- a/lib/grit/eurorack/hades_test.cpp
+++ b/lib/grit/eurorack/hades_test.cpp
@@ -71,4 +71,13 @@ TEST_CASE("grit/audio/eurorack: Hades")
             REQUIRE(etl::isfinite(block(1, i)));
         }
     }
+
+    for (auto i{0}; i < 128; ++i) {
+        hades.nextDistortionAlgorithm();
+        [[maybe_unused]] auto const cv = hades.process(block, {});
+        for (auto i{0}; i < blockSize; ++i) {
+            REQUIRE(etl::isfinite(block(0, i)));
+            REQUIRE(etl::isfinite(block(1, i)));
+        }
+    }
 }