Allen ADC-4100 (1986)

[Guest]

Hi everybody,

Does anyone know or information for me about this "unusal" model? I think it's more closer by the model adc 4300 than adc 4000. But what are the inportant differents. Is it maybe custom made or was it a model between others?
However, there is no owner manual of this model on the site of Allen Organ Company.... So what about this?

Thanks for answer.

[tucsondave]

I found this:
Voice changes compared to the model 4000 are:

Pedal
Contra Bourdon 32' added
Trompete 8' added
Schalmei 4' added

Swell
Fourniture IV added
Swell Alt. off changed to Alterable to Swell

Great
Gemshorn 16 added
Flute Doice II added
Quinte 2-2/3 deleted
Quintflote 1-1/3 added
Celeste Tuning added

[Menschenstimme]

I dare say that those improvements are significant.

[michaelhoddy]

If it was a 1986 model, did it have the TG-10 articulation board like the ADC-x300 models, or was it just an enhanced ADC-4000 from the original 1983 ADC-x000 series?

[myorgan]

Christoffel,

Welcome to the Forum. I look forward to learning more about this particular organ. Information may be a bit slow in coming, but I'm sure you'll find out some over time here. Don't feel lost if there's no information on Allen's website. I visited Allen's website to find information on my last organ I purchased (ADC-5400), and sure enough, there was no information. They recommended the manual for the ADC-4900>ADC-8350, and that's all the information I was able to get (other than from the techs on this Forum).

Meanwhile, check this thread for information--however, it doesn't include information about the ADC-4100 specifically. Maybe it will help some.

Meanwhile, I'll wait for the rest of the people here to chime in. Thanks for posting about this organ.

Michael

P.S. Do you have photos or a stoplist?

[jbird604]

The 4100 was a nice step-up from the original 4000 model. As pointed out above, a number of significant stops were added, making it a very complete two-manual organ. In fact, the 4100 has more stops than the MDS-45 I play at church :-( and has at least one that I sorely wish I had -- the Gamba on the great.

It doesn't have a TG-10 board in the cage, as that became available only with the advent of the 4300 and other models with "3" in the second digit.

However, IIRC, some of the stops do have well-developed attack transients, in particular the great principal 8, the swell flutes, the pedal principal, and the mixtures. There is also a chiff tab which adds a generic attack sound to most of the other flue stops. Maybe not as exciting as the fully adjustable air/chiff sounds in the 4300, but pretty respectable and much better than the old MOS chiff.

[myorgan]

John,

Judging by the year, was the ADC-4100 a transition organ--kinda like my ADC-5400? They had some features of the X000 series, and some from the X300 series.

Michael

[jbird604]

Michael,

I would say you are correct. The 4100, like your 5400, provides more stops for the money than earlier designs. This was "phase two" of the ADC program, and represented a response to the feedback from dealers and customers, who believed that the mid-size ADC models were a little short on resources compared to what Rodgers was offering in the same price range. (knob-wise anyway). So you have the 4100 with 5 or 6 more stops than the 4000 at the same price level, and the 5400 being very close in stop count to the 6000 but at a somewhat lower price point. Both the 4100 and the 5400 seem to have some tweaking of the samples as well, and possibly more refined attack programs on the EG boards, though they have no separate chiff generators, the TG-10 having not been introduced at that time.

And as you know, the next stage was the introduction of the TG-10 board for advanced adjustable air and attack sounds, along with the TG-8 board that replaced the TG-6 as the all-purpose generator board, providing upgraded DAC circuitry. These models with "3" in the second place are noticeably different in sound from the first two types of ADC organs. The TG-10 was carried over into the MDS models and continued to be used right up to the end in the large cage and custom MDS organs.

[Gerritfrl.]

Hi everybody,

Does anyone know or information for me about this "unusal" model? I think it's more closer by the model adc 4300 than adc 4000. But what are the inportant differents. Is it maybe custom made or was it a model between others?
However, there is no owner manual of this model on the site of Allen Organ Company.... So what about this?

Thanks for answer.

Hi Stoffel,

Your Allen is on his way from the states to Holland right now (as you know) I am looking forward to voice the organ for you. I am curious about the sound of the ADC 4100. You know my ADC 5300 very well!! Your Allen does not have the TG-10 board for articulation. This board came with the x3xx series.

Greetings from Gerrit

[arie v]

Hi,

A number of years go, I serviced an ADC-4100 and then directly afterwards an ADC-4300. They were both installed in moderately good acoustics.

From what I remember the 4300 sounded better and more authentic to a pipe organ compared to the 4100. Most likely due to what was mentioned, the board with the articulation, wind noise, and other interesting things Allen did to make their organs sound more interesting.

Actually, the ADC-4300, was to me the first Allen that I kinda liked the sound of. Up until then, most of Allen organs sounded like MOS organs re-iterated with improvements.

AV

[DrSound]

Hi,

A number of years go, I serviced an ADC-4100 and then directly afterwards an ADC-4300. They were both installed in moderately good acoustics.

From what I remember the 4300 sounded better and more authentic to a pipe organ compared to the 4100. Most likely due to what was mentioned, the board with the articulation, wind noise, and other interesting things Allen did to make their organs sound more interesting.

Actually, the ADC-4300, was to me the first Allen that I kinda liked the sound of. Up until then, most of Allen organs sounded like MOS organs re-iterated with improvements.

AV

Maybe part of the ADC service manual related to the 4100 model will help you.

[myorgan]

I think it's more closer by the model adc 4300 than adc 4000.

Maybe part of the ADC service manual related to the 4100 model will help you.

Christoffel,

Now that I've seen part of the service manual so graciously provided by DrSound, I can give you more detailed information on the differences.

To put it basically, the technology is slightly more advanced than the ADC-4000, but is closer to the ADC-4000 than the ADC-4300. However, the stoplist is more like the ADC-4300 than the ADC-4000, but slightly smaller.

• Swell: Roughly the same, but I'm not sure the Hautbois/Chimes substitution was available on the ADC-4000. I know it is available on the ADC-4300 because I have it. Otherwise the stoplist is the same.
• Great: The ADC-4300 has a Schalmei 8', but the ADC-4100 does not.
• Pedal: The ADC-4300 has a 16' Violone, and 4' Flute of some sort.
• General: The ADC-4300 had no Chiff drawknobs/stops, but it did have an Articulation Off for those stops that did have Chiff. There was also a Romantic Tuning option in addition to the Celeste Tuning drawkob/stop. Also, in reviewing the Tutti list, the 16' Pedal Reed doesn't engage until the Tutti II piston is pressed.

I hope this gives you some more detailed information on your new organ.

Michael