That SP4 doesn’t even support Dolby Vision so I wouldn’t wanna buy a product that costs that much and is already outdated; also, $14K to just be a DAC and amplify the line-level connection(s) is a bit much, adding some high end subs (dual Rythmik G25HP for instance, AVS Forums “Top Pick” for 2018) and room treatment if you don’t already have would be far more worth your money.
You also want room correction, so I would consider:
* Marantz 8805, ~$4500 MSRP, would recommend the $20 app to edit the Audyssey curve, as it employs something similar to the BBC Dip. Super high quality analog outputs and equally high end AKM DACs.
* Anthem AV60, $3000 MSRP, it’s room correction is said to be better than Audyssey. The Marantz is more for a few reason, one is 13ch processing, which is the cheapest 13ch professor on the market (the Bryston is 15ch, so you are paying probably an $8000 premium just for that), but since you aren’t doing that, the Anthem may be better, except I don’t know the quality of the DAC (and it’s internal analog section may not be clean enough to allow an external DAC to be better).
* Arcam AV860, ~$5500 MSRP, it has Dirac which is said to be top tier in room correction (which is what the Bryston has as well). It’s DAC section is also pretty good.
For amplification, how many channels, and do you want a single unit?
You also want room correction, so I would consider:
* Marantz 8805, ~$4500 MSRP, would recommend the $20 app to edit the Audyssey curve, as it employs something similar to the BBC Dip. Super high quality analog outputs and equally high end AKM DACs.
* Anthem AV60, $3000 MSRP, it’s room correction is said to be better than Audyssey. The Marantz is more for a few reason, one is 13ch processing, which is the cheapest 13ch professor on the market (the Bryston is 15ch, so you are paying probably an $8000 premium just for that), but since you aren’t doing that, the Anthem may be better, except I don’t know the quality of the DAC (and it’s internal analog section may not be clean enough to allow an external DAC to be better).
* Arcam AV860, ~$5500 MSRP, it has Dirac which is said to be top tier in room correction (which is what the Bryston has as well). It’s DAC section is also pretty good.
For amplification, how many channels, and do you want a single unit?