Now you mention it, the very first two tracks appear to lack low bass, (apart from a bass drum strike just prior to the fade out of Custard Pie). But then “In My Time of Dying” appears to have some far more bass… not sure what was happening in https://ledzeppelinplatinumrecord32085.blogars.com/26313683/5-simple-statements-about-led-zeppelin-gold-records-explained