ok so the only input is thru the powered mic in. i used a 10uF cap to block power. input is mic level and sensitive, likely to match the smartlav+ mic output (which is almost identical to a 4060). input might overload easily, i had the levels pretty far down. would have to experiment with some different mics. i wonder how the 3V 4063s would do at 2.25V?
TRRS:
tip-no connection
ring-no connection
ring-ground
sleeve-mic in
id say for a mic-in its pretty adequate for our purposes
I played 2 Beck tracks out of my DAC1s headphone output with a 1 minute silent track in between.
i peaked levels at -4 dB in metarecorder, when peaks normalized to 0dB, the noise in the silent track was really low, -85dB RMS, on par with any handheld ive seen and right there with the d:vice (both using cheap caps)
seems like a good option for iphone recording, ill get some good TRRS cables and make a stereo pair
here is that Beck track i recorded if you want to hear how it sounds. i had to cut off the beginning of the track to prevent it from getting pulled for copyright. so its the end of one track and beginning of another with the 1 minute silence in there
https://soundcloud.com/user-498275808/beck-sc6-l-edit