Gen 5 has a bit more snap and bite than Unison. It likely synergizes better with Gungnir A1 becuase of GA1’s smooth and warm nature. Unison with GA1 is smooth on smooth - its too much. With Yggdrasil however Unison was much better than Gen 5 IMO. Gen 5’s “snap and bite” turns to “etch” with Yggdrasil, which is more resolving, has a lower noise floor, leaner tonal balance and snappier transients than GA1. It exposes all the weaknesses of Gen 5, where GA1 seems to cover or complement them mostly. Pi2AES is still better than them all when comparing to a noisy USB source like a general purpose PC. Oops, too slow, @purr1n already said pretty much the same thing as I was typing this.