I don't have a Beier system, but the videos I have seen of it actually running seem to indicate to me it suffers the same frequency shift ailment as most of the others when it comes time to kick the tank in gear. However sound files on programmable cards are only as good as the person who built them. So some of that might be what I am hearing. My first files on the Benedini are nowhere as good as some of the recent ones I produce now.

It would be nice to have someone who runs a Beier card give us a demo of the card in action to compare. No one can say I haven't hung the Benedini out there to be compared against. I recently modded a Leo file once again,(Last night) and I am very pleased with how this one turned out. I will post that soon

Beier caters to the Heng Long crowd and actually makes a sound unit that will work with Stock Heng Long electronics. IF you had no interest in IR and just wanted good sound, then Beier has a product that does that.