Hi Wishbonebrewery,

You are taking a direct output from Eurorack into your iPhone? If yes, then indeed that will be far too loud, ha, ha, Eurorack audio signals are at a much higher audio voltage level than normal audio lines. So get yourself a good audio interface module (for example the one from Intellijel) and that should solve your problem.

Keep up the good music but don't blow up your iPhone ;-) and kind regards, Garfield.

Edit: Removed typo.

For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads