I bought a 14$ speaker at big5 then I found a 32$ speaker I want to return the 14$ speaker but the return policy is 30 days I had it 34 days
So what's your question? Sell it on craigslist or ebay.
Just say you have had it for under 30 days and that you lost your receipt. Get your money back on in store credit.
You can request them to replace. If this is not work, then sell the item in ebay,amaon or where ever you want. Then, buy your desire one.