I have in-house right now the MHDT Orchid for review. I chose this MHDT model because it uses a TDA 1541 A chip.
I found the Border Patrol to be a good sounding DAC. However, for my tastes the MHDT offers a much higher level of performance in the very areas you are looking for. If you roll the tube to a NOS WE396A D getter from the NOS tube that MHDT ships with you get even richer timbres/colors and more precise imaging and spatial qualities. I believe the Orchid's build quality is better then the Border Patrol and it's a bargain at being about half the price of the other piece.
I found the Border Patrol to be a good sounding DAC. However, for my tastes the MHDT offers a much higher level of performance in the very areas you are looking for. If you roll the tube to a NOS WE396A D getter from the NOS tube that MHDT ships with you get even richer timbres/colors and more precise imaging and spatial qualities. I believe the Orchid's build quality is better then the Border Patrol and it's a bargain at being about half the price of the other piece.