Active volume control/pre-amp offers more features/convenience but my focus here is sound quality only. Can passive volume control be used in higher-end setup without compromising overall sound quality? I'm talking about setups like Denafrips Terminator/Holo Audio May DAC + Benchmark AHB2. How do good PVC compare to active pre-amps like Benchmark LA4? In Stereophile's review of Holo Audio May, Parasound Halo JC 1+ was used with an NHT PVC, a $160 unit released in 2007. I suppose the NHT PVC was able to keep up without bottlenecking the system. But it's discontinued - what are some othe good PVC? Goldpoint from what I read is pretty good, but they're fairly expensive. I'm tempted by some Denafrips/Holo Audio DACs but they dont have volume control, and I haven't budged a good pre-amp. So I wonder if DAC + PVC + amp is a viable option before a good pre-amp is in place.