Speakers are a matter of preference. Some like bright speakers (West Coast sound) and some like more laid back speakers (Boston/East coast sound) They are not bad speakers that were designed to sell at a particular price point and many people liked them, and still do, but they are designed to have a somewhat laid back sound and, in spite of what some here say, they are not bad speakers for what they are. But when compared to a bright speaker like your Klipsch speakers, they will sound more laid back.
Or, the tweeters could be shot.