I bought the DX7 Pro second hand in great condition, like new.
The digital volume button is precise and does not skip. Maybe only once every 30 turns half a decibel step.
I Have read everything in this forum. All 75 pages.
After many hours of A/B testing, I must conclude that the SupremeFX audio DAC from a top of the line Asus motherboard has a more natural stasteful intimate warm concinving and true fidelity (all effects/EQ settings off) compared to the Topping Pro dedicated DAC through her 6.3mm TRS out.
The DX7 Pro sounds very detailed, as detailed as the onboard DAC, but lacks naturalism in her musical presentation.
I have tested with Sennheiser HD600 and Focal Utopia, both with good 6.3mm cables, FIR filter setting 5, tried both Gain L/H, but aside volume change, nothing.
How is it possible that the music sounds more natural from the Asus onboard SupremeFX top of the line soundcard fed by a Corsair 750 watt low ripple PC powersupply, compared to the dedicated highly praised stand alone Topping DX7 DAC unit?
- Will the sound improve greatly if one would connect the HD600 to the 4 pin differential XLR headphone input on this unit?
- Will the sound improve greatly if one would install other Dual OPAmps like the SparkosLabs SS3602 or Burson Classic V6 Dual?
Your experiences on this topic of A/B testing against high end Asus SupremeFX onboard sound cards are welcome!
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