Fastest subwoofer?


Hello, I would like to buy a subwoofer that complements a pair of very fast speakers. I know very little about subs since I rarely used them, and I am wondering what are the models that are considered to be extremely fast and good, no matter at what price point. Thanks.
ggavetti
In response to Inna, i have a pair of Sonus Faber minima, and a pair of Ocellia Kedros (with PHY single driver). As for amplification, I have an EAR 859 with the Ocellia, and a preamplifier DeHavilland + EAR 509 MKII monoblocks with the SF.
Not familiar with your set-up, but yes why not try pair of good Rels or as some recommend a pair of JL Audio ? JL would be more expensive, right?
Wilson Bensch Torus, possibly even better if you use an ICEPower over its own amp.