As most of you know, miniDSP always tries to achieve better performance for our customers. In the case of the
Flex TRS, we were able to improve its excellent noise and distortion specifications even further in a change made in May 2025.
By changing the output DAC section from PCM1795 to Dual ES9017, we achieved the following upgrade from v1 hardware.
SNR: From 121dB(A) to 126dB(A)
THD+N: From -112dB (0.00025%) to -120dB(0.0001%)
Crosstalk: From -123dB(A) to -128dB(A)
On our APX555, it looks like very quiet and clea