Has anyone tried both WASAPI and ASIO4ALL/Kernel Streaming and noticed a difference? I switched from kernel streaming to WASAPI a few days ago, to make switching between my DAC (music) and AVR (movies) more simple while using JRiver, and I noticed a difference. I understand that they are both supposed to be bit-perfect, but I have been hearing a decrease in depth and slightly harsher high frequencies after switching over to WASAPI. I'm not sure if it's me or if either modes is doing something funny to the signal.
I'm using Win7 64bit, JRiver MC17, Wyred 4 Sound DAC2 (thanks Neil!) connected by asynch USB, Intel Core i5-750, 4GB RAM. My settings in JRiver have the buffer size for both WASAPI and kernel streaming set to 0.50 seconds, DSP settings off, and play files from memory is enabled.