I just restored a pair of Jennings Research towers for a neighbor. It had dual 6.5 woofers, a 2" midrange and a domed tweeter. The tweeter and midrange were sunk into the cabinet about 2". I thought they would sound terrible and not image very well. Boy, was I wrong. Jennings did some things very wrong (fuses and a goofy cross-over) but nice cabinets, nice drivers but the wrong surround material on the woofers.
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That's interesting, because I'd never heard of them before I bought them, and never really heard anything about them after. If I remember, mine were only two-ways, so there may have been more than one model. But I remember how nice the cabinets were. They had sort of a parquet thing going on the top.