I think that you should look at different guides on the Internet, for example, Miter Saw Judge. Usually in them you can find out different models, their characteristics, cost and determine much easier what kind of chainsaw will suit you. I would recommend this guide to you because a few years ago it helped me buy my first chainsaw which turned out to be very high quality and strong. I'm sure this will definitely help you choose what you are looking for because the best guides among chainsaws I have not yet met on the Internet
I'm happy to make suggestions for chainsaws, but is there a language barrier here? A chainsaw looks like the attached image. It uses a chain to cut through things. Usual uses are cutting down trees and making firewood.
I can't imagine someone using a chainsaw for the use of making a speaker base. Perhaps if you could elaborate, I could help decide which KIND of saw would be more appropriate.