Actually, you should have no issues if you use the PreMate to drive everything (once the mods are done).
A delay on low frequencies via the Chord DAC will not be an issue - just measure the subs at the listening position separately to the other channels & then delay mid/high by comparing impulse responses & subtracting the slowest (subs) from the fastest (others).
I used to have a Chord DAC64 which was very nice but sold it on a few years ago. Other than that I've not used their products (don't use the inbuilt DAC's on either of my DEQX processors either)
A delay on low frequencies via the Chord DAC will not be an issue - just measure the subs at the listening position separately to the other channels & then delay mid/high by comparing impulse responses & subtracting the slowest (subs) from the fastest (others).
I used to have a Chord DAC64 which was very nice but sold it on a few years ago. Other than that I've not used their products (don't use the inbuilt DAC's on either of my DEQX processors either)