Athlon 3.2GHz, 2Gb RAM, a flinch. To my amazement, these plug-ins require little CPU resources.
2 months of use: say anything, it's clean. I can not make comparisons with other plug-ins such as DSU or URS because not essays. In any case, this collection is really a great job: a musical rest even when you push the rglages and provides I do not know what indfinissable some translate as "heat". The compressor is a bit dlicat take control and I do not always understand the signs of VU meters and LED clipping: clip a few times without the VU meters are in red. But that's just history to seek the small bte.
In short, excellent collection, buy 420 Euros on e-bay.