Hello everyone, need a little help

So my current audio setup consists of Edifier R1280T Studio 2.0 42W speakers, and then I use a DAC to connect from my PC to the speakers, it's a M-Audio MobilePre (just like this one I linked).

Now, I happen to have a Pioneer Stereo Amplifier SA-700 which used to be connected to an old vinyl player my grandma had. It's still working, although not sure of it's condition.

Considering the Pioneer Amplifier is working decently, is it worth using over the DAC I currently have?