Best monitor for female vocals?

Live 5 hours from anything you'd consider an audio store. I can only audition gear in my business travels and need your help in narrowing the field. Looking for a monitor that excels in vocals, particularly female focals. Listen to blues, folk, jazz, standards at moderate levels with the occassional "crank it up" mood. To be used strictly for 2 channel audio now, maybe multi-channel audio in the future. Room is 16W X 28L X 8H. Listening position about 12' from where speakers will be on the short wall.

Willing to suplement bass with Velodyne DD-series sub if necessary. Will be buying new amp/pre or integrated amp for this 2 channel system, so current electronics not an issue. The only speakers I've auditioned so far that I'd buying are Harbeth Super HL5s. What others should I consider?

Budget of $2,500-3,000.(used)for 9/10 Audiogon condition. Thanks in advance for your suggestions.