Now which you mention it, the very first 2 tracks seem to deficiency very low bass, (besides a bass drum strike just ahead of the fade outside of Custard Pie). But then “In My Time of Dying” seems to have some more bass… not sure what was happening below, https://simonldrfg.atualblog.com/32677350/5-tips-about-led-zeppelin-gold-records-you-can-use-today