So really basic question but, I'm currently running a mac, and well I have trouble making any kind of sound because a lot of CPU is used with this mac from like 2009, so I was wondering if anyone can suggest a good pc or mac or even specs that would accommodate me as a person who uses up to 5 no more that 7 chords at once and loves to play around with FX and modulation to make my tracks and also I create duplicate of the one chords alone on top of melodies....

Depends on your budget, but the best choice is to build your own PC. Also, you can save alot of money buying an AMD FX-8350 processor for less than half the price of an Intel processor of the same specs, i've been using it for about a year now and it's great. Add 8/16 GB of RAM, a 7200 RPM HDD and a quiet fan, and you have a great PC.