Johnyd,You are probably not going to get much response here because you mentioned Cerwin Vega and this is a bit of an elitist site.Unfortunately many of the more recent Cerwin Vegas are pretty crude devices in a loud and bass crazy sort of way.Some of the older ones were quite good however and you may find that the fullrange type drivers lack bass extension, although like the Cerwin Vegas they are efficient and dynamic.Even things like the highly praised Zu Druid have very little bass below 100hz.
If you are wanting to build your own speakers I would suggest looking into some of the excellent kits available from suppliers such as Madisound,Edgarhorns,Parts Express and Zalytron.Even though your amps are quite powerfull I would recommend selecting kits with sensitivities above 91db/watt because valves and efficient speakers synergise so well.
If you are wanting to build your own speakers I would suggest looking into some of the excellent kits available from suppliers such as Madisound,Edgarhorns,Parts Express and Zalytron.Even though your amps are quite powerfull I would recommend selecting kits with sensitivities above 91db/watt because valves and efficient speakers synergise so well.