My first 500 series compressor i ever bought, and it's the best investment i have ever made. The sound takes my clients, and my own recordings, to a level i was previously struggling to achieve with plug ins and other hardware compressors. I can describe it as a silky, warm, heavy sound that really adds that "finished" feeling to my recordings. The price was unbeatable for a Shadow Hills Unit, let alone a compressor of this build quality. The Dual Vandergraph has exceeded my expectations, i will never forget the first day i started getting familiar with the unit, and added it to a few tracks, and of course my master bus. I will never let go of this unit!
At the time of this review, this is my only analog compressor. I use it a lot. It is great on tracks, bus's and the master. I am without any doubt addicted to my Shadow Hills Dual Vandergraph. It is a class A VCA compressor with discrete color. It has 4 filter settings and 4 different ratios. You can't set the ratio high enough for any limiting however.