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Master list of Allen Organ models of the 70's - 90' with details?

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  • Perry
    replied
    Our Allen church organ is a 2 manual type purchased in 1980s, card reader type. The two cabinets 15" Woofers eventually lost their foam cone supports via cracking and had to be replaced. I, being an experienced audio type, was surprised to see that the woofers were 4 ohm impedance.
    In general audio systems it's either 8 or 16 ohms, so, other than heavier loading on the organ amps, why the 4 ohm design? Better damping?
    In perusing the Allen speaker assortments,I do notice some are 8 ohms......

    Thanks for any professional analysis....

    Perry

    Leave a comment:


  • Organkeys Jones
    replied
    "RTC" is roll top console, a designation on the later contemporary AGO consoles because most of them didn't have a roll top.

    Leave a comment:


  • myorgan
    replied
    Originally posted by Dewey643 View Post
    There MIGHT be room for two external speakers,...MAYBE!
    If you have room for two speakers, you have room for four. If your ceiling is 8' high, you can fit 5 speakers on top of each other lying on their sides. As already stated, if they're on top of each other, they will fit 2-high. If you have 9' ceilings, you may be able to fit 3-high, and the footprint on the carpet is only 18"2.

    Originally posted by Dewey643 View Post
    My living room has thick carpet,so I am sure this will affect how well the organ will sound in my living room,...so I'm not going to blame the organ for dry acoustics! That being said,...should I have it voiced to the room? I know NOTHING about how to voice an organ!
    We'll wait until you get the organ of your choice. The voicing will be similar, but there will be differences based on the technology involved. It's not as scary as it sounds. I do all my organs.

    Michael

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  • toodles
    replied
    I believe "RTC" = roll top, contemporary console, the plain "C" console being contemporary with fall board (folding lid cover).

    Leave a comment:


  • Dewey643
    replied
    Trying my best to narrow my choices down to two particular models of interest,...ADC-1140,...or an MDS-6! Both have built-in audio,..which is what I need for my small living room,...space is limited. I'm not in a major hurry,...just waiting patiently for any of these organs to pop up. There MIGHT be room for two external speakers,...MAYBE! My living room has thick carpet,so I am sure this will affect how well the organ will sound in my living room,...so I'm not going to blame the organ for dry acoustics! That being said,...should I have it voiced to the room? I know NOTHING about how to voice an organ!

    Leave a comment:


  • Moller Artiste
    replied
    Originally posted by davidecasteel View Post
    According to the list, an Allen 224 was a 2-manual MOS-2 instrument with AGO pedals and 22 pistons. That model was introduced in 1981. I'm not sure what the "RTC" indicated (Tone Card Reader?).

    David.
    David, I'm pulling deep from my memory about RTC. I think it indicated a Roll Top Console. Allen

    Leave a comment:


  • davidecasteel
    replied
    According to the list, an Allen 224 was a 2-manual MOS-2 instrument with AGO pedals and 22 pistons. That model was introduced in 1981. I'm not sure what the "RTC" indicated (Tone Card Reader?).

    David.

    Leave a comment:


  • Dewey643
    replied
    Originally posted by searchinferu View Post
    Note: The following is a general compilation of information from various sources. It may or may not be accurate and is being provided as a best-effort convenience. Any authoritative information should be obtained from the manufacturer.

    The following is from Jan Girardot's Electronic Organ Reference List,
    at http://www.lizardweb.com/E-organ_list_v.4_(DB)1.pdf reformatted for this document and sorted by year built.

    0................................................. ................. 1970 Transistor 32 2 (console)
    100 1971 Digital 32 2 (MOS-1)
    200 1971 Digital 32 2 (MOS-1)
    300 1971 Digital 32 2 (MOS-1)
    600 1971 Digital 32 2 (MOS-1) (2-computer)
    1500 1971 Digital 32 3 (MOS-1) (5-computer)
    900 1972 Digital 32 3 (MOS-1) (3-computer)
    902 1972 Digital 32 3 (MOS-1) (3-computer)
    1200 1972 Digital 32 3 (MOS-1) (4-computer)
    3300 1972 Digital 32 2 (MOS-1)
    101 1973 Digital 32 2 (MOS-1)
    102 1973 Digital 32 2 (MOS-1)
    103 1973 Digital 32 2 (MOS-1)
    120 1973 Digital 32 2 (MOS-1)
    121 1973 Digital 32 2 (MOS-1)
    122 1973 Digital 32 2 (MOS-1)
    123 1973 Digital 32 2 (MOS-1)
    201 1973 Digital 32 2 (MOS-1)
    301 1973 Digital 32 2 (MOS-1)
    601 1973 Digital 32 2 (MOS-1) (2-computer)
    602 1973 Digital 32 2 (MOS-1) (2-computer)
    620 1973 Digital 32 2 (MOS-1)
    1800 1973 Digital 32 2 (MOS-1)
    2100 1973 Digital 32 2 (MOS-1)
    182 1974 Digital 32 2 (MOS-1)
    202 1974 Digital 32 2 (MOS-1)
    631 1974 Digital 32 3 (MOS-1)
    3600 1974 Digital 32 2 (MOS-1)
    416 1975 Digital 32 2 (MOS-1) Theatre
    420 1975 Digital 32 2 (MOS-1)
    424 1975 Digital 32 2 (MOS-1)
    603 1975 Digital 32 2 (MOS-1) (2-computer)
    632 1975 Digital 32 3 (MOS-1)
    903 1975 Digital 32 3 (MOS-1) (3-computer)
    920 1975 Digital 32 3 (MOS-1) Theatre
    1203 1975 Digital 32 3 (MOS-1) (4-computer)
    381 1976 Digital 32 2 (MOS-1)
    421 1976 Digital 32 2 (MOS-1) Theatre
    422 1976 Digital 32 2 (MOS-1) Theatre
    425 1976 Digital 32 2 (MOS-1) Theatre Music Scene
    460 1976 Digital 32 2 (MOS-1) Theatre
    1220 1976 Digital 32 2 (MOS-1)
    2700 1976 Digital 32 2 (MOS-1)
    282 1977 Digital 32 2 (MOS-1)
    417 1977 Digital 32 2 (MOS-1) Theatre
    423 1977 Digital 32 2 (MOS-1)
    431 1977 Digital 32 2 Theatre
    432 1977 Digital 32 2 (MOS-1) Theatre
    435 1977 Digital 32 2 (MOS-1) Theatre Music Scene
    461 1977 Digital 32 2 (MOS-1) Theatre
    2400 1977 Digital 32 2 (MOS-1)
    MDC-10 1977 Digital 13 2 (MDC-1) Theatre Compact (spinet)
    MDC-11 1977 Digital 13 2 (MDC-1) Theatre Compact (spinet)
    MDC-20 1977 Digital 32 2 (MDC-2)Classic 20
    MDC-30 1977 Digital 32 2 (MDC-1) Theatre 30
    MDC-31 1977 Digital 32 2 (MDC-1) Theatre 31
    203 1978 Digital 32 2 (MOS-1)
    683 1978 Digital 32 3 (MOS-1)
    433 1979 Digital 32 2 (MOS-1) Theatre
    436 1979 Digital 32 2 (MOS-1) Theatre Music Scene
    462 1979 Digital 32 2 (MOS-1) Theatre
    621 1979 Digital 32 2 (MOS-1)
    124 1981 Digital 32 2 (MOS-2)
    125 1981 Digital 32 2 (MOS-2)
    224 1981 Digital 32 2 (MOS-2)
    225 1981 Digital 32 2 (MOS-2)
    305 1981 Digital 32 2 (MOS-2)
    453 1981 Digital 32 2 (MOS-2) Theatre
    456 1981 Digital 32 2 (MOS-2) Theatre Music Scene
    465 1981 Digital 32 2 (MOS-2) Theatre
    505 1981 Digital 32 2 (MOS-2) (2-computer)
    665 1981 Digital 32 3 (MOS-2) (2-computer)
    675 1981 Digital 32 3 (MOS-2) Theatre (2-computer)
    705 1981 Digital 32 2 (MOS-2) Theatre (3-computer)
    805 1981 Digital 32 3 (MOS-2) (3-computer)
    965 1981 Digital 32 3 (MOS-2) (3-computer)
    1105 1981 Digital 32 2 (MOS-2) (4-computer)
    1403 1981 Digital 32 2 (MOS-2) (4-computer)
    1405 1981 Digital 32 2 (MOS-2) (6-computer)
    MDC-12 1981 Digital 13 2 (MDC-1) Theatre Compact (spinet)
    MDC-22 1981 Digital 32 2 (MDC-1)Classic 22
    MDC-32 1981 Digital 32 2 (MDC-2) Theatre 32
    MDC-42 1981 Digital 32 2 (MDC-1)
    MDC-52 1981 Digital 32 2 (MDC-1)
    MDC-15 1982 Digital 32 2 (MDC-1)
    ADC-1000 1983 Digital 32 2 (ADC)
    ADC-1010 1983 Digital 32 2 (ADC)
    ADC-2000 1983 Digital 32 2 (ADC)
    ADC-2010 1983 Digital 32 2 (ADC)
    ADC-3000 1983 Digital 32 2 (ADC)
    ADC-3500 1983 Digital 32 2 (ADC) Theatre
    ADC-4000 1983 Digital 32 2 (ADC)
    ADC-4500 1983 Digital 32 3 (ADC) Theatre
    ADC-4600 1983 Digital 32 3 3-manual theatre console
    ADC-5000 1983 Digital 32 2 (ADC)
    ADC-5400 1983 Digital 32 3 (ADC)
    ADC-6000 1983 Digital 32 3 (ADC)
    ADC-6500 1983 Digital 32 3 (ADC)
    ADC-7000 1983 Digital 32 3 (ADC)
    ADC-8000 1983 Digital 32 3 (ADC)
    ADC-9000 1983 Digital 32 3 (ADC)
    ADC- 220 1984 Digital 32 2 (MADC-1)
    ADC- 320 1984 Digital 32 2 (MADC-1)
    ADC- 420 1984 Digital 32 2 (MADC-1)
    ADC- 520 1984 Digital 32 2 (MADC-1)
    ADC- 720 1984 Digital 32 3 (MADC-1)
    ADC-4100 1984 Digital 32 2 (ADC)
    ADC- 710 1985 Digital 32 2 (MADC-2) Spectrum
    ADC-1100 1985 Digital 32 2 (MADC-2)
    ADC-1110 1985 Digital 32 2 (MADC-2)
    ADC-2100 1985 Digital 32 2 (MADC-2)
    ADC-2110 1985 Digital 32 2 (MADC-2)
    ADC-3100 1985 Digital 32 2 (MADC-2)
    ADC-6800 1986 Digital 32 3 (ADC)
    Classic I 1986 Digital 32 2 (ADC)
    Classic II 1986 Digital 32 2 (ADC)
    ADC- 221 1987 Digital 32 2 (MADC-3)
    ADC- 430 1987 Digital 32 2 (MADC-3)
    ADC- 530 1987 Digital 32 2 (MADC-3)
    ADC- 730 1987 Digital 32 3 (MADC-3)
    ADC-1130 1987 Digital 32 2 (MADC-3)
    ADC-1160 1987 Digital 32 2 (MADC-3)
    ADC-2130 1987 Digital 32 2 (MADC-3)
    ADC-2160 1987 Digital 32 2 (MADC-3)
    ADC-3160 1987 Digital 32 2 (MADC-3)
    ADC-4300 1987 Digital 32 2 (ADC)
    ADC-5300 1987 Digital 32 2 (ADC)
    ADC-6300 1987 Digital 32 3 (ADC)
    ADC-7300 1987 Digital 32 3 (ADC)
    ADC-8300 1987 Digital 32 3 (ADC)
    ADC-8350 1987 Digital 32 3 (ADC)
    ADC-9300 1987 Digital 32 3 (ADC)
    ADC- 222A 1988 Digital 32 2 (MADC-3)
    ADC- 530A 1988 Digital 32 2 (MADC-3)
    ADC-1140 1988 Digital 32 2 (MADC-3)
    ADC-2140 1988 Digital 32 2 (MADC-3)
    ADC-2160A 1988 Digital 32 2 (MADC-3)
    ADC-3160A 1988 Digital 32 2 (MADC-3)
    ADC-3600 1988 Digital 32 2 theatre console
    ADC-430A 1988 Digital 32 2 (MADC-3)
    Classic I -SC 1988 Digital 32 2 (ADC)
    ADC-4900 1989 Digital 32 3 (ADC)
    MDS- 45 1989 Digital 32 2 (MDS)
    MDS- 50 1989 Digital 32 3 (MDS)
    MDS- 51- S 1989 Digital 32 3 (MDS)
    MDS- 75 1989 Digital 32 3 (MDS)
    MDS- 85 1989 Digital 32 3 (MDS)
    Classic I -W 1990 Digital 32 2 (MDS)
    Classic I-W-SC 1990 Digital 32 2 (MDS)
    MDS- 15 1990 Digital 32 2 (MDS)
    MDS- 25 1990 Digital 32 2 (MDS)
    MDS- 35 1990 Digital 32 2 (MDS)
    MDS- 65 1990 Digital 32 3 (MDS)
    MDS-TH III 1990 Digital 32 3 (MDS) Theatre
    MDS-TH IIID 1990 Digital 32 3 (MDS) Theatre
    ADC- 222 1991 Digital 32 2 (MADC-3)
    MDS- 1 1991 Digital 32 2 (MDS)
    MDS- 5 1991 Digital 32 2 (MDS)
    MDS- 10 1991 Digital 32 2 (MDS)
    MDS- 40- S 1991 Digital 32 3 (MDS)
    MDS- 45- S 1991 Digital 32 2 (MDS)
    MDS- 65- S 1991 Digital 32 3 (MDS)
    MDS- 80- S 1991 Digital 32 4 (MDS)
    MDS- 90 1991 Digital 32 4 (MDS)
    MDS-TH II 1991 Digital 32 2 (MDS) Theatre
    MDS-TH Plus 1991 Digital 32 3 (MDS) Theatre
    MDS-TH Plus D 1991 Digital 32 3 (MDS) Theatre
    MDS- 10X 1992 Digital 32 2 (MDS)
    MDS- 38 1992 Digital 32 3 (MDS)
    MDS- 70- S 1992 Digital 32 3 (MDS)
    MDS- 93 1992 Digital 32 4 (MDS)
    MDS- 85- S 1993 Digital 32 3 (MDS)
    MDS- 95 1993 Digital 32 4 (MDS)
    AP- 3 1994 Digital 32 2 Protege
    AP- 4 1994 Digital 32 2 Protege
    MDS- 2 1994 Digital 32 2 (MDS)
    MDS- 11 1994 Digital 32 2 (MDS)
    MDS- 16 1994 Digital 32 2 (MDS)
    MDS- 26 1994 Digital 32 2 (MDS)
    MDS- 30LDS 1994 Digital 32 2 (MDS)
    MDS- 36 1994 Digital 32 2 (MDS)
    MDS- 39 1994 Digital 32 3 (MDS)
    MDS- 41- S 1994 Digital 32 3 (MDS)
    MDS- 46 1994 Digital 32 2 (MDS)
    MDS- 55 1994 Digital 32 2 (MDS)
    MDS- 6 1994 Digital 32 2 (MDS)
    MDS- 60 1994 Digital 32 3 (MDS)
    MDS- 71- S 1994 Digital 32 3 (MDS)
    MDS- 81- S 1994 Digital 32 4 (MDS)
    MDS-212 1994 Digital 32 2 (MDS) Theatre
    MDS-212D 1994 Digital 32 2 (MDS) Theatre (AGO version of above)
    AP- 2 1995 Digital 32 2 Protege
    AP- 7 1995 Digital 32 2 Protege
    AP- 9 1995 Digital 32 3 Protege
    MDS-312 1995 Digital 32 3 (MDS) Theatre
    MDS-317 1995 Digital 32 3 (MDS) Theatre
    MDS-317EX 1995 Digital 32 3 (same as MDS-317 + 2nd stoprail more unif.)
    MDS-Artiste-III 1995 Digital 32 3 (MDS)
    MDS-Positiv 1995 Digital 32 2 (MDS)
    AP-12 1996 Digital 32 3 Protege
    AP-20 1996 Digital 32 3 Protege
    MDS- 8 1996 Digital 32 2 (MDS)
    R350 1997 Digital 32 3 Renaissance
    R370 1997 Digital 32 3 Renaissance
    R450 1997 Digital 32 4 Renaissance
    GW4 1998 Digital 32 4 Renaissance Theatre
    GW319 1999 Digital 32 3 Renaissance Theatre
    GW319EX 1999 Digital 32 3 Renaissance Theatre (year approximate)
    R211 1999 Digital 32 2 Renaissance Theatre
    R211D 1999 Digital 32 2 Renaissance Theatre (AGO version of R211)
    R311 1999 Digital 32 3 Renaissance Theatre
    Wow,..that's quite a list!

    Leave a comment:


  • Dewey643
    replied
    Originally posted by toodles View Post
    The sequence of general families is as follows for their digital organs:

    MOS I
    MDC
    MOS II
    ADC
    MADC
    MDS

    MOS I was the 1st digital series.

    MOS II was a refinement but not very major changes.

    MDC stands for Modified Digital Computers, probably the worst of the bunch. Built only for low cost and manufacturing ease. Lots of duplexing.

    ADC: Allen Digital Computer; available in early (Models like ADC-4000, ADC-5000), middle, and late models (such as ADC4300, ADC 6300, etc.). The late models are very nice. These are full-cage organs.

    MADC were modified versions of the ADC where a true cage was not employed. Models also used the ADC prefix, but were like: ADC-2100, 1100, 3100, and then ADC-3160, then ADC-3160A. Get an A version if you can, but they are all quite nice for smaller organs.

    MDS: Master Design Series, starting from around 1990. These were the 1st Allens with full MIDI implementation. Earlier models had card readers, but later models dropped it.

    Renaissance and Quantum followed.

    If you go to the Allen website under Customer Support you can find the owner's manuals. They will tell you quite a bit about individual models. Look under "More Models" for these older organs.
    I'll know to stay away from the MDC models,then! It's ADC,or later,and as long as it has self contained audio,...would prefer lower end MDS organs like MDS-5,MDS-6,or Protege AP-4 and up,though! What is the ADC-1100 llike?

    Leave a comment:


  • samibe
    replied
    I have created a spreadsheet of the list from searchinferu. It is posted here: https://1drv.ms/x/s!ArDV9gcksaC3jlJsq5nc2Nm7sRRj
    It includes some of the newer allen organs, extra information, and some very rough price estimates and parameters.
    It is sorted by number of manuals (most to least) then by year (newest to oldest).
    A lot of the extra information is either assumed or extrapolated from pictures and spec sheets.
    The prices shown are based on my assumptions. Feel free to adjust them to fit your reality.

    Leave a comment:


  • searchinferu
    replied
    Dawg,

    I would stay away from eBay, as most of the organs there have vastly inflated prices and you can't play or inspect the instrument before you buy it. There are also some REAL 'dogs' there. As found in one of my other postings, one of them was trying to sell organs he didn't even own! Craigslist and/or Kijiji if you live anywhere near Canada are great places to look. You can use searchtempest or similar sites to get around the one city at a time limitation of craigslist searches. Talk with organ techs, or visit the local Allen dealer. You never know what may lurk in one of their back rooms. If you are in the Midwest, I am working on a deal on a new organ and if it goes well, I will have a really sweet ADC2140 for a decent price, as I have TOO MANY ORGANS....according to the other half! smile.

    Basically, do you home work and decide what you want. Read as much as you can so you are familiar with common found problems, or better yet, take along a friend who is knowlagable. Then with a little patience searching and some pocket change, you will end up with something nice, quite possibly for less than you were expecting.

    WARNING! organcollectitus is very contagious, so you may want to get vaccinated against that. Have fun.

    Leave a comment:


  • searchinferu
    replied
    Note: The following is a general compilation of information from various sources. It may or may not be accurate and is being provided as a best-effort convenience. Any authoritative information should be obtained from the manufacturer.

    The following is from Jan Girardot's Electronic Organ Reference List,
    at http://www.lizardweb.com/E-organ_list_v.4_(DB)1.pdf reformatted for this document and sorted by year built.

    0................................................. ................. 1970 Transistor 32 2 (console)
    100 1971 Digital 32 2 (MOS-1)
    200 1971 Digital 32 2 (MOS-1)
    300 1971 Digital 32 2 (MOS-1)
    600 1971 Digital 32 2 (MOS-1) (2-computer)
    1500 1971 Digital 32 3 (MOS-1) (5-computer)
    900 1972 Digital 32 3 (MOS-1) (3-computer)
    902 1972 Digital 32 3 (MOS-1) (3-computer)
    1200 1972 Digital 32 3 (MOS-1) (4-computer)
    3300 1972 Digital 32 2 (MOS-1)
    101 1973 Digital 32 2 (MOS-1)
    102 1973 Digital 32 2 (MOS-1)
    103 1973 Digital 32 2 (MOS-1)
    120 1973 Digital 32 2 (MOS-1)
    121 1973 Digital 32 2 (MOS-1)
    122 1973 Digital 32 2 (MOS-1)
    123 1973 Digital 32 2 (MOS-1)
    201 1973 Digital 32 2 (MOS-1)
    301 1973 Digital 32 2 (MOS-1)
    601 1973 Digital 32 2 (MOS-1) (2-computer)
    602 1973 Digital 32 2 (MOS-1) (2-computer)
    620 1973 Digital 32 2 (MOS-1)
    1800 1973 Digital 32 2 (MOS-1)
    2100 1973 Digital 32 2 (MOS-1)
    182 1974 Digital 32 2 (MOS-1)
    202 1974 Digital 32 2 (MOS-1)
    631 1974 Digital 32 3 (MOS-1)
    3600 1974 Digital 32 2 (MOS-1)
    416 1975 Digital 32 2 (MOS-1) Theatre
    420 1975 Digital 32 2 (MOS-1)
    424 1975 Digital 32 2 (MOS-1)
    603 1975 Digital 32 2 (MOS-1) (2-computer)
    632 1975 Digital 32 3 (MOS-1)
    903 1975 Digital 32 3 (MOS-1) (3-computer)
    920 1975 Digital 32 3 (MOS-1) Theatre
    1203 1975 Digital 32 3 (MOS-1) (4-computer)
    381 1976 Digital 32 2 (MOS-1)
    421 1976 Digital 32 2 (MOS-1) Theatre
    422 1976 Digital 32 2 (MOS-1) Theatre
    425 1976 Digital 32 2 (MOS-1) Theatre Music Scene
    460 1976 Digital 32 2 (MOS-1) Theatre
    1220 1976 Digital 32 2 (MOS-1)
    2700 1976 Digital 32 2 (MOS-1)
    282 1977 Digital 32 2 (MOS-1)
    417 1977 Digital 32 2 (MOS-1) Theatre
    423 1977 Digital 32 2 (MOS-1)
    431 1977 Digital 32 2 Theatre
    432 1977 Digital 32 2 (MOS-1) Theatre
    435 1977 Digital 32 2 (MOS-1) Theatre Music Scene
    461 1977 Digital 32 2 (MOS-1) Theatre
    2400 1977 Digital 32 2 (MOS-1)
    MDC-10 1977 Digital 13 2 (MDC-1) Theatre Compact (spinet)
    MDC-11 1977 Digital 13 2 (MDC-1) Theatre Compact (spinet)
    MDC-20 1977 Digital 32 2 (MDC-2)Classic 20
    MDC-30 1977 Digital 32 2 (MDC-1) Theatre 30
    MDC-31 1977 Digital 32 2 (MDC-1) Theatre 31
    203 1978 Digital 32 2 (MOS-1)
    683 1978 Digital 32 3 (MOS-1)
    433 1979 Digital 32 2 (MOS-1) Theatre
    436 1979 Digital 32 2 (MOS-1) Theatre Music Scene
    462 1979 Digital 32 2 (MOS-1) Theatre
    621 1979 Digital 32 2 (MOS-1)
    124 1981 Digital 32 2 (MOS-2)
    125 1981 Digital 32 2 (MOS-2)
    224 1981 Digital 32 2 (MOS-2)
    225 1981 Digital 32 2 (MOS-2)
    305 1981 Digital 32 2 (MOS-2)
    453 1981 Digital 32 2 (MOS-2) Theatre
    456 1981 Digital 32 2 (MOS-2) Theatre Music Scene
    465 1981 Digital 32 2 (MOS-2) Theatre
    505 1981 Digital 32 2 (MOS-2) (2-computer)
    665 1981 Digital 32 3 (MOS-2) (2-computer)
    675 1981 Digital 32 3 (MOS-2) Theatre (2-computer)
    705 1981 Digital 32 2 (MOS-2) Theatre (3-computer)
    805 1981 Digital 32 3 (MOS-2) (3-computer)
    965 1981 Digital 32 3 (MOS-2) (3-computer)
    1105 1981 Digital 32 2 (MOS-2) (4-computer)
    1403 1981 Digital 32 2 (MOS-2) (4-computer)
    1405 1981 Digital 32 2 (MOS-2) (6-computer)
    MDC-12 1981 Digital 13 2 (MDC-1) Theatre Compact (spinet)
    MDC-22 1981 Digital 32 2 (MDC-1)Classic 22
    MDC-32 1981 Digital 32 2 (MDC-2) Theatre 32
    MDC-42 1981 Digital 32 2 (MDC-1)
    MDC-52 1981 Digital 32 2 (MDC-1)
    MDC-15 1982 Digital 32 2 (MDC-1)
    ADC-1000 1983 Digital 32 2 (ADC)
    ADC-1010 1983 Digital 32 2 (ADC)
    ADC-2000 1983 Digital 32 2 (ADC)
    ADC-2010 1983 Digital 32 2 (ADC)
    ADC-3000 1983 Digital 32 2 (ADC)
    ADC-3500 1983 Digital 32 2 (ADC) Theatre
    ADC-4000 1983 Digital 32 2 (ADC)
    ADC-4500 1983 Digital 32 3 (ADC) Theatre
    ADC-4600 1983 Digital 32 3 3-manual theatre console
    ADC-5000 1983 Digital 32 2 (ADC)
    ADC-5400 1983 Digital 32 3 (ADC)
    ADC-6000 1983 Digital 32 3 (ADC)
    ADC-6500 1983 Digital 32 3 (ADC)
    ADC-7000 1983 Digital 32 3 (ADC)
    ADC-8000 1983 Digital 32 3 (ADC)
    ADC-9000 1983 Digital 32 3 (ADC)
    ADC- 220 1984 Digital 32 2 (MADC-1)
    ADC- 320 1984 Digital 32 2 (MADC-1)
    ADC- 420 1984 Digital 32 2 (MADC-1)
    ADC- 520 1984 Digital 32 2 (MADC-1)
    ADC- 720 1984 Digital 32 3 (MADC-1)
    ADC-4100 1984 Digital 32 2 (ADC)
    ADC- 710 1985 Digital 32 2 (MADC-2) Spectrum
    ADC-1100 1985 Digital 32 2 (MADC-2)
    ADC-1110 1985 Digital 32 2 (MADC-2)
    ADC-2100 1985 Digital 32 2 (MADC-2)
    ADC-2110 1985 Digital 32 2 (MADC-2)
    ADC-3100 1985 Digital 32 2 (MADC-2)
    ADC-6800 1986 Digital 32 3 (ADC)
    Classic I 1986 Digital 32 2 (ADC)
    Classic II 1986 Digital 32 2 (ADC)
    ADC- 221 1987 Digital 32 2 (MADC-3)
    ADC- 430 1987 Digital 32 2 (MADC-3)
    ADC- 530 1987 Digital 32 2 (MADC-3)
    ADC- 730 1987 Digital 32 3 (MADC-3)
    ADC-1130 1987 Digital 32 2 (MADC-3)
    ADC-1160 1987 Digital 32 2 (MADC-3)
    ADC-2130 1987 Digital 32 2 (MADC-3)
    ADC-2160 1987 Digital 32 2 (MADC-3)
    ADC-3160 1987 Digital 32 2 (MADC-3)
    ADC-4300 1987 Digital 32 2 (ADC)
    ADC-5300 1987 Digital 32 2 (ADC)
    ADC-6300 1987 Digital 32 3 (ADC)
    ADC-7300 1987 Digital 32 3 (ADC)
    ADC-8300 1987 Digital 32 3 (ADC)
    ADC-8350 1987 Digital 32 3 (ADC)
    ADC-9300 1987 Digital 32 3 (ADC)
    ADC- 222A 1988 Digital 32 2 (MADC-3)
    ADC- 530A 1988 Digital 32 2 (MADC-3)
    ADC-1140 1988 Digital 32 2 (MADC-3)
    ADC-2140 1988 Digital 32 2 (MADC-3)
    ADC-2160A 1988 Digital 32 2 (MADC-3)
    ADC-3160A 1988 Digital 32 2 (MADC-3)
    ADC-3600 1988 Digital 32 2 theatre console
    ADC-430A 1988 Digital 32 2 (MADC-3)
    Classic I -SC 1988 Digital 32 2 (ADC)
    ADC-4900 1989 Digital 32 3 (ADC)
    MDS- 45 1989 Digital 32 2 (MDS)
    MDS- 50 1989 Digital 32 3 (MDS)
    MDS- 51- S 1989 Digital 32 3 (MDS)
    MDS- 75 1989 Digital 32 3 (MDS)
    MDS- 85 1989 Digital 32 3 (MDS)
    Classic I -W 1990 Digital 32 2 (MDS)
    Classic I-W-SC 1990 Digital 32 2 (MDS)
    MDS- 15 1990 Digital 32 2 (MDS)
    MDS- 25 1990 Digital 32 2 (MDS)
    MDS- 35 1990 Digital 32 2 (MDS)
    MDS- 65 1990 Digital 32 3 (MDS)
    MDS-TH III 1990 Digital 32 3 (MDS) Theatre
    MDS-TH IIID 1990 Digital 32 3 (MDS) Theatre
    ADC- 222 1991 Digital 32 2 (MADC-3)
    MDS- 1 1991 Digital 32 2 (MDS)
    MDS- 5 1991 Digital 32 2 (MDS)
    MDS- 10 1991 Digital 32 2 (MDS)
    MDS- 40- S 1991 Digital 32 3 (MDS)
    MDS- 45- S 1991 Digital 32 2 (MDS)
    MDS- 65- S 1991 Digital 32 3 (MDS)
    MDS- 80- S 1991 Digital 32 4 (MDS)
    MDS- 90 1991 Digital 32 4 (MDS)
    MDS-TH II 1991 Digital 32 2 (MDS) Theatre
    MDS-TH Plus 1991 Digital 32 3 (MDS) Theatre
    MDS-TH Plus D 1991 Digital 32 3 (MDS) Theatre
    MDS- 10X 1992 Digital 32 2 (MDS)
    MDS- 38 1992 Digital 32 3 (MDS)
    MDS- 70- S 1992 Digital 32 3 (MDS)
    MDS- 93 1992 Digital 32 4 (MDS)
    MDS- 85- S 1993 Digital 32 3 (MDS)
    MDS- 95 1993 Digital 32 4 (MDS)
    AP- 3 1994 Digital 32 2 Protege
    AP- 4 1994 Digital 32 2 Protege
    MDS- 2 1994 Digital 32 2 (MDS)
    MDS- 11 1994 Digital 32 2 (MDS)
    MDS- 16 1994 Digital 32 2 (MDS)
    MDS- 26 1994 Digital 32 2 (MDS)
    MDS- 30LDS 1994 Digital 32 2 (MDS)
    MDS- 36 1994 Digital 32 2 (MDS)
    MDS- 39 1994 Digital 32 3 (MDS)
    MDS- 41- S 1994 Digital 32 3 (MDS)
    MDS- 46 1994 Digital 32 2 (MDS)
    MDS- 55 1994 Digital 32 2 (MDS)
    MDS- 6 1994 Digital 32 2 (MDS)
    MDS- 60 1994 Digital 32 3 (MDS)
    MDS- 71- S 1994 Digital 32 3 (MDS)
    MDS- 81- S 1994 Digital 32 4 (MDS)
    MDS-212 1994 Digital 32 2 (MDS) Theatre
    MDS-212D 1994 Digital 32 2 (MDS) Theatre (AGO version of above)
    AP- 2 1995 Digital 32 2 Protege
    AP- 7 1995 Digital 32 2 Protege
    AP- 9 1995 Digital 32 3 Protege
    MDS-312 1995 Digital 32 3 (MDS) Theatre
    MDS-317 1995 Digital 32 3 (MDS) Theatre
    MDS-317EX 1995 Digital 32 3 (same as MDS-317 + 2nd stoprail more unif.)
    MDS-Artiste-III 1995 Digital 32 3 (MDS)
    MDS-Positiv 1995 Digital 32 2 (MDS)
    AP-12 1996 Digital 32 3 Protege
    AP-20 1996 Digital 32 3 Protege
    MDS- 8 1996 Digital 32 2 (MDS)
    R350 1997 Digital 32 3 Renaissance
    R370 1997 Digital 32 3 Renaissance
    R450 1997 Digital 32 4 Renaissance
    GW4 1998 Digital 32 4 Renaissance Theatre
    GW319 1999 Digital 32 3 Renaissance Theatre
    GW319EX 1999 Digital 32 3 Renaissance Theatre (year approximate)
    R211 1999 Digital 32 2 Renaissance Theatre
    R211D 1999 Digital 32 2 Renaissance Theatre (AGO version of R211)
    R311 1999 Digital 32 3 Renaissance Theatre

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  • jbird604
    replied
    To my ears, there is much similarity among MOS (1&2), ADC, and MADC as far as the basic tone colors and quality of sound, at least at the lower end where you're working with only two audio channels. A multiple computer MOS organ, especially if it's MOS-2, actually beats the smaller ADC or any MADC in sheer beauty of tone and breadth of the ensemble. But the ADC and MADC models, even the low end ones, have certain features that outshine MOS -- a true celeste on even the smallest models, distinct frequency separation between the channels, better chiff, and much better chimes and other percussions.

    I think the very last ADC models (the full-line ones, such as the 4300, 6300, etc.) had a clearly improved realism, at least in part due to the new TG-10 "articulate voicing" cards that produced a fully adjustable and surprisingly realistic chiff and air component for selected voices. But I think they may have also used some improved samples or better rendering, because even the basic tone colors seem more realistic in these models.

    Early MDS was little different from late ADC, carrying over most of those late model ADC characteristics, but MDS marked a huge change in Allen's system design, introducing a complete MIDI implementation that has required virtually no changes to this very day. MDS models did get improved tone generation in later iterations, though not dramatically different.

    It was Renaissance that was the groundbreaking technology, so much of a change and so thoroughly modern that it endures to the present with only modest upgrades. Personally, I think Renaissance organs sound great even up close, which cannot be said for many of the early digitals. The graininess and grittiness of the MOS and ADC sounds is completely gone as Renaissance works pretty much like the exotic software organs of today, Hauptwerk and its kin, by storing and playing back real sound clips of pipes playing, not just a single wave. I think it's more listenable up close because there is less artificial processing of the tone, thus fewer artifacts to annoy the ear.

    In spite of not being all that good up close, even the old MOS organs sound incredibly good in a proper installation and in a lively acoustical setting. I still find myself in awe when I walk into a church and her one of these old organs playing and it really sounds like pipes under the right circumstances.

    For me, the difference between a small MOS and a small ADC (MADC) would come down to features. All things being equal, I'd take the newer one over the older one, but a small MOS that happened to have the card reader and the moving tab action would probably get my vote over a small MADC without card reader or moving tabs.

    The ones to avoid, as has been said, are the MDC models, those pitifully crippled digitals introduced during the MOS era to give dealers a dirt cheap organ to replace the old T-12 after its retirement. In spite of their repuation, I have sold a few of them myself both new and used, so I must think they're OK for some situations. As long as you recognize their limitations -- no mixtures, no couplers, only a handful of truly unique tone colors unified around, and the 6-note limit when playing the "celeste effect" as well as the disastrous "carillon" stop that's good for hardly anything other than chiming the hour -- and if you just want a solid Allen console with real Allen keys and pedalboard to practice on at home, one of these is OK, and the price is usually very low.

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  • toodles
    replied
    The 123C will not have celeste voices, the 530 will.
    The 123C might have alterable voices, but the 530 definitely will not.
    The 123C might have a moving stop combination action; the 530 will have blind presets.

    The 123C will have a larger stoplist.

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  • spiderdawg
    replied
    Sorry for the confusion, arie v! Your comments are very helpful, as I have not heard a side-by-side comparison and am trying to decide whether the ADC530 is worth the extra several hundred bucks over the 123C. Either way, I anticipate digital reverb will be added to improve on the sound (and headphone jacks, too, just in case anybody other than the organist in the family wants to practice.)

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