The orchestra is its typical shrill self. The cello and violin sound wonderful most of the time. When they really get going the sound can be a bit much. At moderate volumes the record is very enjoyable.
This is a famous recording for having distortion and congestion in the louder orchestral passages. There is no such thing as a copy of this record that doesn't have that problem. You listen to this record for the wonderul interplay between Heifetz and Piatigorsky and not much else.