I just bought a pair of ML-1C speakers on eBay (or won the bid). The cabinets are almost like new and that's why I bought them. I'll eventually go through and replace the woofers, midranges, tweeters along with the crossover networks to update them to modern standards, but for now they will work like they are. Most McIntosh guys don't like theses old speakers, but I wanted them because of the cabinets and they go with my 1700 receiver and the wood matches it's cabinet. They were made in 1970. Whoever had these really took care of them. Response: 20Hz to 20,000Hz Power rating: 100 watts peak Output sensitivity: 89dB/watt/meter re: 8 ohms Impedance: 8 ohms Woofer: 12" McIntosh Lower mid-range: 8" McIntosh Upper mid-range: 1-1/2" soft dome Tweeter: 2-1/4" cone with 1/2" super radiator Crossover frequencies: 250Hz, 1500 and 7000Hz Overload protection: none Finish: walnut Dimensions: 26" high, 15" wide and 13-1/2" deep Weight: 64 lb. Sold from 1970 to 1976 Last retail price: $399.00 each .