The reviews on Amazon have 31% saying the speakers are garbage.
I highly doubt that such cheap speakers have any kind of woofer, mid, tweeter arrangement, it's probably a tiny single cone with the equivalent of a refrigerator sized permanent magnet and a tiny weak voice coil.
If you want decent speakers either make your own like you did before or buy good speakers instead of something from a thrift store (there is usually a good reason stuff ends up in a thrift store).