Those Bose and Creative speakers (most likely) don't have amps built into them..
If they are just speakers I have some speakers over 30 yrs old! (Don't use them much as they are 'dead' sounding but they work)

I have had issues with JBL speakers, mostly the tweeters going.. one set I have is 15 yrs old and I have replaced 2 tweeters.
Another is 5+ and going strong.

I happen to like JBL as a company and think they shoot for quality product. Maybe you got a bad set, or the repair shop did something 'different'. Could be they were "soft" from the get-go and the new amp shows this. I wouldn't be surprised if the end result was replacing both amps for the same price (so they match). Should be under warranty still, I would think.


I do not work here, but the benefits are still awesome
Make your sound your own!