Thank you opnly bafld for the translation. It must have been late when I did that post, not to mention, my weakness with "code".
Nikosteel,
There is some pretty good advise on this thread, and the recommendation of the Omega sub is a good one. They are fast, don't boom or chuff, and when set up properly, blend seamlessly into the system. Right now there is only the Hoyt-Bedford Type 3 sub which will essentially do the same job as the Deep Hemp (now discontinued). Louis is working on a replacement for the Deep Hemp but it is not quite ready yet. My suggestion is: if you have the Monitors, try the Type 3 sub. If you have the XRS Towers go for a bigger SET. Assuming you are in Italy and want a quality SET amp, I would look at the Trafomatic Aries SET (6 w/ch), Almarro A205A MKII SEP (5 w/ch), John Blue TL-66 SET (5 w/ch), Unison Research Simply Italy (12 w/ch UL). None of the these amps are exactly cheap, but certainly more economical than a good 2A3 or 300B.
Also there is a considerable difference in bass authority between 2-3 w/ch and 5-6 w/ch. If possible, stay with SET amps that have one tube per output.
Although not a SET, the Leben CS-300 PP is a killer combo with the Super 6; this is one of Louis' favourite matches. Quite pricy here in North America, but maybe cheaper in Europe.