Now that you mention it, the initial 2 tracks manage to absence very low bass, (in addition to a bass drum strike just ahead of the fade from Custard Pie). But then “In My Time of Dying” appears to have some more bass… not sure what was taking place https://alexiscsdls.ssnblog.com/26429594/led-zeppelin-gold-records-things-to-know-before-you-buy