New sub , old amp

[Shiner]

Is there away to use a sub that has only line in RCA jacks with an old amp?
I have a NAD 2200 running a Denon 2560 CD player and DCM Time Frame TF600 speakers.

 

[tjohnusa]

What kind of sub is it? I am assuming it came from a packaged surround system. It would help if you posted pics of labels and the jack area.

 

[Yamaki]

It doesn't sound as if you have anything that can send a signal to the sub. I assume the sub is powered? What kind is it? Got any more info you can share about the sub?

 

[whoaru99]

Lots of speculation with the info provided, but since you're running a power amp then it should be safe to assume you're feeding it direct from the CD player or an unnamed preamp.

In either case, and assuming you're literal with RCA jackS on the sub, a pair of "Y" cables between the source and power amp and sub would do the trick. A line level crossover of some sort would be better though. Something along the line of a Paradigm X-30 but there are other solutions as well.

More detail about the sub and, maybe equally important, budget?