Installed volfenhag zx-7127; powers up; no sound

No, it's only use to control the gain or level from zero to what u set it to

try looking for mfg name, place where they were made, state or country, zip code, part numbers, any information here is a website
that may help:

www.alltheinternet.com/
www.thesearchenginelist.com/
www.infolinks.com/
www.searchfiles.org
www.wikipedia.org/
www.wiki.org/
www.hackipedia.org/

/rebuild power inverters 2500 watts
/volfenhag 12 manufacture+service+rebuild
/repair+fix ZX-4812DVX

• 2 Channel Bridgeable 1200W Power Amplifier (4 ohms)
• 2 Ohm Stable Stereo

ZX 8290 Volfenhag 2 Channel 1200 Watt Bridgeable Power Amplifier

hooked up wrong switch your rc cable around

open the back of your amp and see if the leads from the fan are burnt anywhere. trace them from the fan to where they are soldered into the board. if the wires appear to be fine, then test them using a volt meter. if the positive is not recieveing power you may want to solder the lead to your remote turn on.

volfenhag's are cheap. you get what you pay for. that is the german equiv. to pyramid or kraco.

try wiring them differently. here is a link for u to go to http://www.crutchfield.com/learn/learningcenter/car/subwoofers_wiring.html . once there find your amp configuration (ie. mono, or 2 channel) then down to the type of subs an how many subs ( ie. 2 dvc (dual voice coil) 4 ohm subs) an that will show u how the subs should be wired and wired to the amp.

The most likely problem would be a blown fuse. I would replace all of the fuses.

12 " subs need 1.5 cubic feet sealed box...

try different rca cables and also different speaker wiring to the amps and see what u get