For the "purists" out there you really do need to have a dedicated ground (return) wire for each speaker. Of course this assumes that the amplifier you are using also has separate returns. It does no good at all if they are all connected together in the amp. Any high quality amp "should" have separate and discrete wiring for each channel. The cheaper amps will cut corners and tie things together inside. For the very best the return is NOT connected to ground and is in fact "fully floating" so it isn't really called ground but is called return or negative. When you get into high power levels it does matter. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, Peter Lucas <lucas@xxxx> wrote: > > Here's some potentially useful info from a message I posted about a > year ago on this topic: > > > As an alternative to rewiring the speakers, you can solve the "common > > ground" problem with an inexpensive device called a "floating ground > > adaptor", such as the Peripheral FGA4. I bought one recently from > > River Oaks Car Stereo: > > > > http://www.installer.com/acc/index.html > > > > Cost was $22.95. > > --Pete Lucas > VIN #06703 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/