diff --git a/pes_to_spec/model.py b/pes_to_spec/model.py
index 045d38e1a59f7aa9828dffe71cd3d80f60ca2d38..39b6c4b7a7267ef4cddb0dc3462845f6b14da377 100644
--- a/pes_to_spec/model.py
+++ b/pes_to_spec/model.py
@@ -523,7 +523,7 @@ class Model(TransformerMixin, BaseEstimator):
     def __init__(self,
                  channels:List[str]=[f"channel_{j}_{k}"
                                      for j, k in product(range(1, 5), ["A", "B", "C", "D"])],
-                 n_pca_lr: int=200,
+                 n_pca_lr: int=600,
                  n_pca_hr: int=20,
                  high_res_sigma: float=0.2,
                  tof_start: Optional[int]=None,