Last week I traded my DR‑07mkll handheld recorder for a DP-006. With the DR-07MKII, I used my Sennheiser e385 (dynamic mic -- pretty similar to SM58) and got good levels, but when I plug it into my DP-006 with levels all the way up, I barely get recordings peaking at the -12 dB reference line. Same voice (me), everything the same. Do I really need a preamp to get the level up when using the DP-006 when I didn't with the DR-07? With the DP-006, Line in and internal mics all have adequate levels. Thanks for any help!