Universal Audio puts a lot of effort into quality software emulations. The Neve 33609 Bus Compressor is a UAD plug-in based on a legacy piece of hardware used on a lot of record productions. It was originally designed by Geoff Tanner at Neve in the 70’s (before it became AMS Neve) and is based on the 2254 compressor. This unit and the SSL bus compressor are two of the best examples of products in this category.