Hi Again,
I went to a store last week and the pedal worked pretty well with no issues at all. Sounded clean and worked fine with my Power Adaptor. I bought the cables and though that there was the problem (specially with the XLR/Jack that gave me a lot of problems)

Back home, again the noise.
I guess… I’m using a Huges&KEttner;100W Bass Amp and a Cheap 20W Aria Bass Amp. Maybe there’s the problem, right? I’m using bass amps. I guess I will have a try in one of my friends’ guitar amps and see if it works there (it should, because in the stor it did…)

Anyway, thanks a lot for your time.

BTW, I’m fucking shocked by Lost Finale.

I’m using a basic dynamic mic, sort of Shure Model 55SH Series II, with no phantom needed. When I plug the mic to the amp with the XLR-1/4″ I need to put it some way loud to hear something (if the guitar needs to be at 3 to hear something, say that to hear the mic you need to put it at 7) , but makes no noise at all.

I’m thinking about going to a music shop here in Valencia that sells EHX pedals. Even they don’t have the voice box, maybe I can try other cables/instruments/mics and see if the problem is not in the pedal.
If it is… what’s the way to go? I would get a new one or I have to pay for shippings, etc? As I said I bought the pedal on march 28 and I receive it last monday because of the seller on ebay (wrong direction twice, really).

Thanks a lot again guys, you’re helping me not to kill myself today…

Thanks for the fast reply guys.

The noise is not a sort of feedback, more like the one you will hear from a broken cable, but extremely loud. The cables are working by themselves, I mean, if they aren’t thru the pedal, you can use them and you won’t get any noise, all 4 (well, XLR/XRL I haven’t tried in other places, but I bought it yesterday so I guess is not there the problem…) works perfect and no noise at all.
I’m getting the point of the preamp thing, I will have a try but as you said when I press the mic bypass switch it happens nothing, so I guess it has something to do with the device, not the cables/amps.
I’ve uploaded the noise i’m getting:

http://cl.ly/x0P

as you see, when it gets louder is when I switch the mic gain to Hi. When I press the Mic Bypass nothing happens.
I’m seeing that the AC adapter i bought is only 9V, could be the ,6V less that probably is frying my pedal and making it act like crazy? If it had something to do with the AC adapter it shouldn’t even turn the lights on, right?

I don’t know what else should I do to make this thing works…
Thanks again.