for updated technology. The system was owned by a friend of my father and was very proud of it.The system was compromised of vintage equipment dating somewhere from 1955 to 1966. Fisher preamp with built in phono preamp. Harman Kardon Tube stereo power amp(100+ watts?) Electro Voice speakers: 3-way with 15" woofer, horn midrange and horn tweeter. Horns are folded. Physical size is HUGE being about 4' wide, 3 1/2' deep and about 3' high. London Phase-4 Albums on unknown turntable. The owner was extremely proud of this system and was eager to show to me. I was expecting to hear something fabulous. To my surprise, this system offered the worst sound I've heard from ANY system, including my JVC jambox. I just couldn't believe this system sounded so bad. This sound was irritating and made my skin crawl. This was the first time I ever found myself grinding my teeth from such irritating sound. For such huge speakers with huge woofers, they had absolutely NO bass. The high treble was none existent but the high midrange and low treble were very loud, being so screechy that my ears actually were hurting. This system was very loud and resembled the loudness output of a professional sound reinforcement system. The sound however was thin, screechy, and very fatiguing. The owner was the proudest of the imaging which I thought was only mediocre compared to budget systems I've heard. The imaging and the soundstage were the strong points of this system, although those points were weak by my judgment. I think if the owner ever upgraded to this decade's equipment, he would soil himself over the performance of todays equipment. The HK tube amp was the only component in the system that really caught my attention. The amp was huge with about 12 tubes. 6 very large ones sitting on the very top and 6 smaller tubes sitting on the next lower level. The preamp had oxidation in it's control knobs but the HK tube amp was said to have never needed a tube replacement, which I thought was incredible. These component are all very old. I guess I just had to share my experience as it made such an impression on me, in the negative way unfortunately. I think the performance down falls were directly related to the speakers. Not sure how the HK would sound fitted in a more modern system today. Have a good one.