With the Lumin, specifically what would you like to improve? Are you looking for improved clarity, better soundstage/imaging? What is the shortcoming? There is a fair amount of compromise at that level.
An "upgrade" could be a lateral shift to something that is a better compromise for your tastes or could be a step forward. It really depends on what you want to accomplish.
The obvious alternatives are the Chord TT2, Audiobyte Hydravox, Rockna Wavelight and Bricasti M3. Each has a distinct and different sound and depending on features will range between $4.5K and $7K MSRP.
For a clear step forward you would look at the Chord Dave or TT2 with MScaler, Weiss 501/502, Bricasti M1 or Rockna Wavedream Edition. Depending on features, these will range between $6.5K and $11K.
I have another thread breaking down performance of these DACs which is titled "DAC Shootout starts this weekend."
An "upgrade" could be a lateral shift to something that is a better compromise for your tastes or could be a step forward. It really depends on what you want to accomplish.
The obvious alternatives are the Chord TT2, Audiobyte Hydravox, Rockna Wavelight and Bricasti M3. Each has a distinct and different sound and depending on features will range between $4.5K and $7K MSRP.
For a clear step forward you would look at the Chord Dave or TT2 with MScaler, Weiss 501/502, Bricasti M1 or Rockna Wavedream Edition. Depending on features, these will range between $6.5K and $11K.
I have another thread breaking down performance of these DACs which is titled "DAC Shootout starts this weekend."