The question you ask is a good one.
You wrote, "I'm new to this hobby and currently still trying out new gear to see what I like". Later you mentioned you are looking at a used audio piece. I assume you mean "new... to you" if you are buying used. If not, buy a new Parasound from an authorized dealer to negate risks.
Half of the gear I own is "new", and the other half was bought "used". The advice offered to you so far is good advice. I will add this. Consider the reason why the seller is letting a piece go... for sale. Some are updating their gear. Great reason to sell. Some are trying something else, another good reason or something is wrong with the gear they are selling, some are buying at estate sales, goodwill, or from ebay to RESELL. That's not a good reason to sell (or rather to buy). If the seller looks legit, answers questions without problems, has a good reason to sell, agrees with all terms, even if it involves returning the item and I feel I can reduce my risks in buying.... that's what i am looking for.