I have an ODS HRM that I want to run with an attenuator at home to get a little more oomph at lower volumes (the master volume on it's great, but I'd like to just get it a little higher, maybe 2 or 3 clicks of the attenuator). On the website, Fuchs lists the Lucky 7 as having "an attenuator friendly circuit". Does this mean my ODS has an "unfriendly" circuit when it comes to attenuators? Anyone have any experience with this. I'd contact Fuchs but it's Sunday and was just wondering if anyone' s already broached this issue. thanks.