Just stumbled across this – my first recording with a hydrophone. It’s a DolphinEar Pro, into the left channel of my then brand-new Fostex FR-2le, with the Beyer M58 into the right channel. Down on docks (more or less) in Wellington, in early 2009. Maybe could do with volume adjustment between the two? Novel at least, and it sounds so sunny! Ah you can’t beat Wellington on a good day.