Lowering the threshold kicks the compression in, while the classic bus setting of slow attack, fast release, and a ratio of 2:1 or 4:1, gives a good transparent starting point. UA flexing muscles with this one. While it shines and sounds great without any additives at all. It’s just what the original hardware did, and if anything, this new virtual version is an improvement - we found it helpful to roll off low frequencies from the input sidechain signal to eliminate high-frequency modulation or pumping; and the new Mix control is especially welcome, particularly on drum buses, allowing you to dial in more heavy-handed settings than you usually would, before mixing in the uncompressed signal to temper the effect and maintain ‘openness’. I had AM/Ex cancel my order and reordered it. Dialling it in couldn’t be easier: turn Threshold (+15 to -15dB) anticlockwise to set compression, then use Gain Make-up (0-15dB) to bring the overall level back up again. Always stands on my Bus drums and at the end of all tracks to glue. CLA EchoSphere: Waves’ free Black Friday VST plugin is a slap delay and plate reverb from Chris Lord-Alge.