Digging a little deeper, I found that the hydrophones that David Rothenberg uses for his pond recordings were originally invented and built by Zach Poff. When it comes to hydrophones,? on his website. It seems that he also used low-noise electret capsules in his . Which puzzled me a bit. Does this mean that an AOM-5024L might work underwater? I still have two left. :-) Is it really necessary to modify the front case of the capsule to allow more contact between the silicone and the diaphragm? I have a lot of respect for this step because I'm afraid of damaging the capsule.
