You aren't likely to notice much difference in mids/ highs because of the one foot height difference.

The smaller cabinets might actually fit your room better. Take a few minutes and measure out the size of these babies in the corner and mark with tape to get a better idea of size.

The JBL's are a nice option. If your room is 14 by 12 sensitivity isn't a concern. Any of these options give you more than you will use.

Grant.