The DSDT edit and the kext I uploaded some time ago... an ONLY that. What HDAEnabler does is it tries to "insert audio into the DSDT" (this is technically incorrect, but it works as an explanation), so the problem is that then you would need a modified LegacyHDA (or AppleHDA) to work with what HDAEnabler injects. So by using the DSDT edit you need 1 kext less, and audio works easier.