Huh? The bias against using headphones for home theatre is that you can't get home theatre on headphones! All you can get is stereo, an old, legacy TV audio format which was superseded years ago. And, you're not even getting a specifically designed stereo mix (as used to be the case) but an automated downmix to stereo generated by your Dolby chip from the 5.1 mix.
What? I use the Logic7 stereo downmixing matrix from multichannel audio(processed in 32fp) with custom coeffs to match my taste and HRTF + Reclock on a PC to output it in 32int/88.2 to Mimby, I'm no fanboy BTW and I switch boats with no regrets. Movies sound outstanding and yes Mimby's quite a bargain indeed. G I think you are wasting your time in this thread, all this said thanks for passing by