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C. Victor Campos C. Victor Campos, 84, from Framingham, Massachusetts, an alumnus of Acoustic Research from 1960 until 1963 and again from 1974 until 1979, died on December 11, 2017 after an extended illness. Victor briefly worked at AR's Music Room in New York in 1959 and later worked in customer services and assisted Ed Villchur with the production of the Live-vs.-Recorded series in the early 1960s. In 1963, Victor went to competitor KLH Research and Development Corporation to work in customer service and engineering under Henry Kloss, but he returned to AR in 1974 working with the Advanced Development Division's new speakers. During these years, Victor produced a superb series of FM broadcasts out of Boston, "Adventures in Sound" and "Shop Talk." These broadcasts were done with master tapes without compression, usually challenging a FM listener's high-fidelity equipment; i.e., if you did not possess AR heavyweight loudspeakers in your system, you were likely to sense distortion during playback! These were superb reel-to-reel tapes done on Ampex AG-440 machines and similar high-end transcription recorders. In the mid 1970s, Victor produced the excellent Neil Grover (drums)/AR-10π live-vs.-recorded demonstrations that showed the extremely capable and accurate reproduction of the AR-10π, especially reproducing the bass drum at high levels. This was a very difficult demonstration—in ways more difficult than the Fine Arts or Gustavo Lopez demonstrations—requiring enormous amplifier peak levels of over 800 watts per channel to reproduce the peak acoustic levels. Steve F on this site attended at least one of those demonstrations and can elaborate on the effectiveness of that demonstration. Much of the credit for the success was due to Victor Campos' understanding of amplifiers, loudspeakers and tape recorders, and he was able to produce excellent results during these LvR demonstrations. Before Victor left AR (he was also at Adcom and NAD through the years), he was very instrumental in the development of the AR9 tower loudspeaker. Initially, Victor wanted the AR9 to be a "powered" speaker complete with built-in amplifiers for woofers, midrange and tweeters, but he was not successful in that quest! At times, Victor could go overboard: when the AR-10 was being developed, a problem occurred with hinge on the fold-out solid-walnut access door on the front. It would bind and stick. Victor wanted to quit "experimenting" and simply cut to the chase: add ball bearings to the hinge! Of course, this was much too expensive, and a proper hinge was developed which worked well without problems. His influence was felt! Victor was an intelligent but sometimes impatient person, yet he accomplished a great deal in the years he was at Acoustic Research and KLH. He will be greatly missed! —Tom Tyson 12Dec2017
I am unloading my Adcom amps. 2 GFA5500's along with the very nice accompanying preamp GFP-565. I purchased these in the past 2 years to use with my AR3's, 9's and other larger current demanding speakers. They have been great and I have no complaints. They handled those speakers easily. Been using them in a passive vertical bi-amp configuration with the 9's and ADS L1590's. One of the amps has the original box. Both are cosmetically great with one having a dinged top right corner (more like a chip) that is frankly easy to ignore. The preamp is often considered one of Adcoms best ever and is a great match with the amps. I have the manual for it. The phono section is highly regarded and does sounds nice with my Denon DP62L turntable running through it. It is probably ready for a little deoxit on the volume control as I occasionally get a little scratch when adjusting it. Just have not got round to it. As far as pricing, individually I would like to get $400 for each amp. If you purchase both it would be $750. The pre is $225 on it's own or $200 if purchased with the amps. $900 if you go with all 3. All is plus shipping of course. I don't mind shipping and I have great shipping pricing (probably half of what you get) via UPS. I would add a few bucks for any shipping material I might need. Let me know and I can fill you in with any other details and photos.