what type of RCA do I need for this speaker

[kwfine]

You need the RCA jacks for where? To plug in the amplifier?

You guessed it right, contrex!
I just found "RCA plug" here:
http://img.alibaba.com/photo/50535797/RCA_Plugs.jpg

Now I got two connectors made by myself, but I don't know which one
is connected to the "minus" input and which one to the "plus" input on the speaker.
Any ideas?

[contrex]

minus on the amplifier goes to minus on the speaker, and plus goes to plus. using 2 colours of plug helps keep things sorted, plus genuine speaker wires have colour coding of some sort.

[kwfine]

minus on the amplifier goes to minus on the speaker, and plus goes to plus. using 2 colours of plug helps keep things sorted, plus genuine speaker wires have colour coding of some sort.

But the two wires are of the same color, they are all orange.

I just see there are some words written on the back side of the amplifier.

[contrex]

But the two wires are of the same color, they are all orange.
ANd they are nothing written at the back end side of the amplifier.

the wire which goes the pin of an RCA jack is the + and the wire which goes to the sleeve is the -

Is this a wire you made yourself? Does not one wire have a black line or mark?

Have you just got one speaker? If so the + and - don't matter. t's only with 2 speakers in a stereo pair that "phasing" is important. Even then you just have swap one set of wires until you get best bass.

[kwfine]

But the two wires are of the same color, they are all orange.
ANd they are nothing written at the back end side of the amplifier.

This is a wire you made yourself? No colours on the sockets on the amplifier?

Is it a subwoofer? I think it's not so important for them. Anyway you can do some listening and switch 'em around to get the best bass.

I see six words write beneath the six audio outputs of the amplifiers.
1. S.W
2. L.Rear
3. Centre
4. R.Rear
5. L.Front
6. R.Front
But no minus nor plus signs shown to me