Ascend Acoustics 170 SE
PSB Image B25
Monitor Audio BR2
stretch budget $100-200
stretch budget $300
Swan HiVi reference monitor
stretch budget $500
these are only candidates off top of my head, and there are many more. Stuff I'm not familiar with, but would be very curious to hear include:
Since your NAD is old, make sure the speaker wire terminals aren't too corroded. Either strip for new wire, and/or use plugs. If using bare wire, you want/need to strip for new wire every now and then.
I'm looking for some good speakers with base reflex. I have a mid 90's NAD 55 wpc Monitor 7100 receiver.
I want speakers with a good clean sound and not too big. Maybe around 20 inch tall bookshelf. My budget is 200 to 300 dollars new or used. Willing to save some money and add to it if needed. The room is 21x13 feet.