With our move to a new house (which has installed speakers), we are selling (6) B&W M-1's for $109 each, well below their original purchase price of $250 each.
Introduced in 2012, the second generation M-1's featured all new drivers, including an in-house designed 1" aluminum dome tweeter and a 4" woven fiber cone woofer utilizing the Anti-Resonance Plug first seen on the high-end PM1 loudspeaker. Externally, the speaker terminations were upgraded and the connection to the table-top stand were strengthened. For those looking for addition placement options, B&W includes a wall bracket with each speaker.
The M-1s are 8-ohm nominal meaning they will work with just about any receiver/amp on the market. They are rated 64 Hz - 23 kHz ±3dB on reference axis. Since you'll be crossing these over at 80 Hz, there is plenty of bass extension. The M-1s are 9.8" tall, 4.5" wide, and 6.4" deep. They weigh in at a mere 5 pounds, making wall mounting a breeze.