Hey guys, this is my first post on this forum, I'll probably post a lot more in the future cuz it looks like this could be a valuable resource. I just bought a pair of A/D/S M12 monitors from a family friend. They're in perfect condition, but I know very little about them. These speakers are at least 15 years old, and due to A/D/S changing ownership a few times there's almost no info to be found about them. I need to know if these are worth keeping, or if I should try to sell them. How much do you guys think is a fair price to ask? I got a specs sheet from an A/D/S representative and that's all I have to go on right now. Here are a few notes: Impedance: 4 Ohms, nominal Freq response: 34-22,000Hz Drivers: One 1" soft dome tweeter with proprietary copolymer dome. Wet wound, oxygen-free copper voice coil on Kapton former. High Gravity magnetic cooling fluid for efficient thermal transfer. One 5.9" high compliance midrange with proprietary polymer cone and polymer-modified butyl rubber surround., etc etc. Two 8.5" high compliance woofers with the same materials as stated above. Crossovers: 200Hz and 2000Hz. High efficiency, LCR Linkwitz-Riley design with 24dB per octave slopes Recommended amplifier power: 25 watts minimum, 250 watts maximum. Enclosure type: Acoustic suspension with glass fiber damping. Enclosure construction: High density, sompressed wood with extensive internal bracing. Diffraction-corrected front baffle and flush driver mounting. Grille: Acoustically transparent, frameless perforated steel, color coordinated with speaker finish. What do you guys think?