Camco vortex 6, 1R stable?

they are still in production... i think they are still the flagship amp for camco.

what constitutes a class H amp andy?

Camco Vortex are 3 step class H as far as I remember.

In theory it should make no difference other than the wiring whether you run three drivers per channel or switch the amp into parallel mono mode and daisy chain all 6 off one output.  The disadvantage of running all 6 in one chain is that the speakon output on the amp and the first cable has to handle all of the current of a 1.6Ohm load which is quite considerable.  You'll also have all the resistances of the extra speakon connections in the chain.

There is lots of confusion between classes G and H.  I'm still not sure which way round it is officially!

Lab Gruppen are different again because they use a hybrid class AB/class D output stage.  The main output stage is class AB but the rail tracking is acheived using class D (switching) techniques.  I believe Yamaha do the same thing with their EEEngine or whatever it is.  The biggest problem with that method is getting the switching to respond quick enough to the audio signal.  It would be a good candidate to incorporate into an amp with internal DSP so you could pinch a couple of milliseconds and have 'lookahead' rail tracking.

Yeah, where does the back-EMF from the cone go on a switch-mode rail tracking amp?

VPAS wrote: so i may be better of running 6 punishers of it in parallel mono rather then 3 a side? unless anyone can give reasons why not to do it il give it a try next week...

ancient thread revival. 6 punishers you will get same result with three a side or all six on parallel mono.

where it comes in useful is with Nexo Alpha S2 subs which are a 3R nominal load. enables you to put three S2 on one amp. for some reason the club I'm working in has two of their six subs disconnected which is why I've been reading about it.