diff --git a/src/supertonic_3_mlx/pipeline.py b/src/supertonic_3_mlx/pipeline.py
index 058a6d3..3867ec5 100644
--- a/src/supertonic_3_mlx/pipeline.py
+++ b/src/supertonic_3_mlx/pipeline.py
@@ -441,6 +441,12 @@ class SupertonicMLXPipeline:
         dp = _build(DurationPredictor, "duration_predictor")
         voc = _build(Vocoder, "vocoder")
 
+        # Conditional-style-attention K is the shared style_key bank that lives
+        # in TextEncoder. Wire it into VectorEstimator's uncond_masker so the
+        # CFG (4*cond - 3*uncond) combine has a valid K on the cond branch.
+        # Without this, low-norm voice styles (M3) collapse to near-DC noise.
+        ve.uncond_masker.style_key = te.tts.ttl.style_encoder.style_token_layer.style_key
+
         if dtype is not None and dtype != mx.float32:
             cls._cast_all(dp, te, ve, voc, dtype=dtype)
 
@@ -463,6 +469,8 @@ class SupertonicMLXPipeline:
         voc = Vocoder()
         _load_into(voc, _convert_onnx(onnx_dir / "vocoder.onnx"))
 
+        ve.uncond_masker.style_key = te.tts.ttl.style_encoder.style_token_layer.style_key
+
         if dtype is not None and dtype != mx.float32:
             cls._cast_all(dp, te, ve, voc, dtype=dtype)