If you want to help me, here are two tracks (uncompressed, so 66MB each): http://davbucci.chez-alice.fr/varie/revoxb77/Catacombs_1.wav and http://davbucci.chez-alice.fr/varie/revoxb77/Catacombs_2.wav In your opinion, which one is the original version and which one has been recorded through the #RevoxB77+#dbx noise reduction? If the links do not work, try copy/pasting them in your browser. #ComparativeTest #AnalogAudio #audio