"Dr Zoidberg" wrote in message
...
Vamp wrote:
for a friend really. mate has a new head unit with a sub out but the
head unit sub out is a single RCA but his sub is a double? he tried a
splitter but that didn't work, is there a special way to wire it up?

How many amps is he using to run the subs , and is it 2 drivers in a
single
cabinet with 1 or 2 sets of speaker terminals?

Top marks Dr Zoiderg, it's amazing how many folks can give an answer without
getting the full facts 1st.