You have a couple of good options, the Tekton’s are a great value, they are however, ugly as sin and are a very boxy looking speaker, we have heard them at two seperate demos and the speakers do a lot of things well but are a bit on the recessed side.
You can get a pair of Legacy Focus for $10k and they move a lot of air, have very deep bass and are very efficient 95.6db and they sound fantastic for all music. The Legacy’s are quite attractive for a good sized speaker and can come in many different veneers so you and your wife can find something that you both like.
The Golden Ear Reference are a decent choice they are a love or hate in terms of their looks and sound quality, we have heard them Golden Ear Reference twice and both times were not blown away.
You need a big speaker with prodigous bass, which means a physically large speaker, you can go the other route and use subwoofers, but then you have an acoustic integration issue as well as one or two large and ugly boxes in your living room.
As per amplifier, you can most likely find a nice power amp to use with your integrated and viola you have a nice new setup.
Dave and Troy
Audio Doctor NJ