diff --git a/packages/superdough/superdough.mjs b/packages/superdough/superdough.mjs
index ec44e8af7..03a4c3da8 100644
--- a/packages/superdough/superdough.mjs
+++ b/packages/superdough/superdough.mjs
@@ -613,7 +613,7 @@ export const superdough = async (value, t, hapDuration, cps = 0.5, cycle = 0.5)
 
     // Kabelsalat
     if (fx.workletSrc !== undefined) {
-      const workletNode = getWorklet(ac, 'generic-processor', {});
+      const workletNode = getWorklet(ac, 'generic-processor', {}, { outputChannelCount: [2] });
       chain.connect(workletNode);
       const workletSrc = fx.workletSrc
         .replace(/\bpat\[(\d+)\]/g, (_, i) => fx.workletInputs[i])
diff --git a/packages/superdough/worklets.mjs b/packages/superdough/worklets.mjs
index 6969ee2c3..26a0fa668 100644
--- a/packages/superdough/worklets.mjs
+++ b/packages/superdough/worklets.mjs
@@ -1540,12 +1540,20 @@ class GenericProcessor extends AudioWorkletProcessor {
       this.gateNode?.setValue(0);
       this.gateEnded = true;
     }
-    const outL = outputs[0][0];
-    const outR = outputs[0][1] ?? outputs[0][0];
+    const output = outputs[0];
+    const outL = output[0];
+    const outR = output[1];
     for (let n = 0; n < blockSize; n++) {
       this.genSample(this.playPos, this.nodes, input ? input[n] : 0, this.registers, this.outputs, this.sources);
-      outL[n] = this.outputs[0];
-      outR[n] = this.outputs[1];
+      const left = this.outputs[0];
+      const right = this.outputs[1];
+      // Spread to stereo if possible; else mixdown to mono
+      if (outR) {
+        outL[n] = left;
+        outR[n] = right;
+      } else {
+        outL[n] = 0.5 * (left + right);
+      }
       this.playPos += 1 / sampleRate;
     }
     return true;