ScottGuy
New Member
Hi. I currently have a pair of Pro100b in complete original condition and want to answer some of the questions asked here. Several years ago I purchased a pair of 197b as spare parts units for my Pro100b. Looking at my notes from that time the 15 in woofers are not the same. The Pro100b ohm reading was about 3.6 ohms vs the 197b which measured 5.7 ohms. The p/n is different also, 22-1130-049 for the Pro100b and 22-1130-055 for the 197b. The mids and tweeters are the same. Here is a photo of the crosseover. And also the spec sheet from the 1980 hh Scott catalog. Hope this help.