diff --git a/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py b/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
index 711db31b6..87d1e0333 100644
--- a/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
+++ b/egs/librispeech/ASR/pruned_transducer_stateless7/zipformer.py
@@ -468,7 +468,7 @@ class ZipformerEncoderLayer(nn.Module):
         self.balancer2 = Balancer(
             embed_dim, channel_dim=-1,
             min_positive=0.45, max_positive=0.55,
-            min_abs=0.5, max_abs=2.0,
+            min_abs=0.1, max_abs=1.0,
         )