you need a stereo preamp plus power amplifier, or an integrated amp (which is those two functions combined), or a receiver (which is an integrated amplifier with a built in FM tuner). the phono preamp just outputs line level, this has to be sent to a regular pre-amp input (aux or whatever), the regular preamp gives you the volume control, source selector, and usually tone controls. the power amp takes the higher level line output from the preamp and drives the speakers.
The turntable probably already has a captive cable with RCA jacks to plug into the phono preamp/equalizer. you'll need RCA stereo patch cables to connect the phono preamp to the stereo preamp/integrated amp/reciever. if you have a seperate power amp, you'll need another stereo RCA patch cable to connect the preamp to the power amp. then you'll need a pair of speaker cables to connect the power amp output to the speakers (I use 'zipcord' lamp cord most of the time, it works just fine, expensive speciality speaker wires are a sucker play. If your amp is over 100 watts per channel, and you're driving large speakers, use heavier gauge lamp cord, like 14 gauge(2mm^2). ditto if you're running longer runs (say, 20 feet (6m) to each speaker), use heavier gauge wire. Otherwise lightweight 18 or 20 ga. (0.8 or 0.5mm^2) is just fine for short runs (say, under 6 feet (2m))