This instrument was a "heavyweight" in the most compact packaging to date. Neither the knowledge, nor the overview or networks of this, even rarer species, can be developed on the spur of the moment. Therefore before buying an original you should consider if it is "only" an obsession and I strongly recommend to consult an experienced ARP technician (like Eric van Baaren / Saint Eric).
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sliders) has come and perhaps one needs to change to more modern spare part replacements, thus it is not possible to extend the "technical original condition". Also with spare parts the end of stocks (e.g. Today, this can be technically corrected or optimized, but the original ARP 2600 has become a very, very expensive instrument (overpriced), regardless of the series. The subsequent VCOs sounded not as good, however the original Teledyne VCOs were simply too high priced. This was also manifested by a higher background noise.
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It should be noted that the first series of the ARP 2600 looked slightly different (and blue), and the later series of the grey ARP 2600 were successively equipped with cheaper parts (VCOs, OpAmps, Power Supply, Spring Reverb). The ARP 2600 was also used as a teaching tool in many schools in the USA, thus its level of popularity almost corresponds to that of the Mini Moog.
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An inserted patch cable disconnects the pre-cabling at that point and the use of patch cables can result in quite complex circuits and sounds. Therefore the 2600 can be played without patchcables - and is called a "semi-modular“. The modules (assemblies) are internally pre-wired. The ARP 2600 (built 1971-81) is a semi-modular synthesizer with 3 VCOs and it has an operating voltage of 15V. This is the well worth seeing ARP 2500 Brochure, approx. So the smallest model of an ARP 2500 (including transport and taxes) was the equivalent of three and the big system of six years' salary! For non-industrial people simply not affordable. One dollar was about DM 3.50 and an average monthly income was about DM 1200. I think only a little over 100 instruments have been built. The ARP 2500 has a very distinctive sound and is one of the great "classics". The man who played the 2500 to communicate with the UFOs was Phil Dodds - ARP's Vice President of Engineering at the time. The best-known is without question Steven Spielberg's science fiction epos 'Close Encounters of the Third Kind', in which the ARP 2500 has a big appearance (even if the 5-tone sequence could have been played with a simpler synth). It is also frequently heard in experimental tape music of the 70s and of course in many films of that time. The 2500 is not so much known from the stage as from records by The Who, Jimmy Page, David Bowie, Jean Michel Jarre, Vangelis, Kraftwerk, Elton John and others. But it is not 100% ARP, because it was modified / extended by Peter Lawo. This model, which is at home in the Experimental Studio of SWR, is the only 2500 I have ever come across. However the ARP 2500 could also be smaller (left). While the 2500 alone was already quite large - it could even be extended by "Wings" (cabinets)! I guess it was the first synthesizer that featured a multimode filter. A known shortcoming was that the matrix sliders suffered from crosstalk issues. The various parameters were color-coded to make it easier to identify the affiliation.
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The ARP 2500 was therefore, technically speaking, a real statement: a voice-stable modular synthesizer - with matrix sliders instead of patch cables.
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In addition, the oscillators were previously not pitch stabile - "live" this was a killer problem. The synthesizers that began to appear in the mid-1960s were huge, heavy, expensive, and they needed patch cords - which were especially unpopular with live musicians. Sadly, I never owned this instrument, but it nevertheless had an enormous impact on my life: the first record with a synthesizer that really "scratched" me (jazz pianist at that time) was "Scorpio" by Paul Bley - who was playing the ARP 2500 on it. | ARP 2500 | ARP 2600 | Odyssey 2811 | Odyssey 2821/23 | Axxe | Little Brother | Rhodes Chroma | only a small part of the entire ARP instrument set