Unfortunately, it might not help as much as you think it will. The reason I said you should go to a store to listen is because if I were to record a video, you'd be hearing the speaker through two more audio devices: my microphone for the camera and your speakers that you listen to it with. So you probably still wouldn't get a good idea of how it sounds unless both of those were great quality.
Try to find a store that sells them. Beyond that, I'm not sure what to tell you. I want you to get the best possible representation of the speaker's sound. I know I think it sounds good, but you might think another speaker sounds better. Good luck!