Rodgers OXFORD 940 User manual

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ROILERS
INSTRUMENT CORPORATION
The sound choice!

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! CAUTION TO REDUCE THE RISK OF IThe lightning flash with arrowhead symbol. within
~: ~ an equilateral triangle. is intended to alert the user
~ ELECTRICAL SHOCK: ~ to the presence of uninsulated "dangerous voltage"
~ !~ within the product's enclosure that may be of
~ DO NOT REMOVE COVER OR BACK. ~ sufficient magnitude to constitute arisk of electrical
§ ~
I ~ shock to persons.
~ ~
i NO USER-SERVICEABLE PARTS INSIDE. ~ The exclamation point within the equilateral triangle
i ~ is intended to alert the user to the presence of
~ REFER SERVICING TO QUALIFIED ~ important operating and maintenance (servicing)
ISERVICE PERSONNEL. I ~r~~~~~~ns in the literature accompanying the
1..:-; :-:..:-.;.:-:.: : :.:.:.:.;.;.:.;.:0;.;.. .. :-; .. ' ;0;.;.;0;.;.;.;.;.;-;.: :-.;.;.;.;.;.;.;.:-;.;.:.;.:.: ;.;-: :.;.: ;.;.; : :.;.;.:-:-: :;.;.: :.:-:.:.: :.:.:-. ; v:.~~
ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OlJVRIR
"
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!
I
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WARNING:
PATENTS
TO REDUCE THE RISK OF G.B. 1312161
FIRE OR ELECTRIC F.R.G.
2202658
SHOCK, DO NOT EXPOSE CANADIAN 951550
THIS APPLIANCE
TO RAIN (1974)
OR MOISTURE.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
A
NOTICE TO USERS
Information in this document is subject to change without notice. No
part of this manual may be translated into any language, stored
in a
retrieval system, reproduced or transmitted
in any form or by any
means, electronic or mechanical, including photocopying and recording,
for any purpose without the express written permission
of Rodgers
Instrument Corporation.
RODGERS INSTRUMENTS LLC
1300 NE 25
TH
AVENUE
HILLSBORO, OREGON 97124
[phone]
RODGERS CANADA
5480 Parkwood Way
Richmond, B.C.
V6V 2M4
[phone]
©Copyright 1992, Rodgers Instrument Corporation. All rights reserved. Printed in the United States of America.
Rodgers® Classic Organs™ , Parallel Digitallmaging™ , PDITM technology and Rodgers DVMTM (Digital Voice Module) are trademarks of Rodgers
Instrument Corporation.

SAFETY INSTRUCTIONS
INSTRUCTIONS PERTAINING TO ARISK OF FIRE,
ELECTRIC SHOCK OR INJURY TO
PERSONS
IMPORTANT SAFETY INSTRUCTIONS
WARNING: When using this instrument, always follow basic precautions, including the following:
1. Read all the instructions before using, adjusting or 10. Unplug the power cord ofthe instrument from the
repairing this instrument.
power source when left unattended for a long
period of time.
2. To reduce the risk of injury, supervise children
closely when they are around the instrument. 11. Do not walk on or place objects on top of the
power cord.
3. Use this instrument only in the manner
recommended by Rodgers Instrument 12. Do not pull the cord to unplug. Hold the plug
Corporation. when unplugging from the power source.
4. Do not use this instrument near water, for 13. When setting up with other instruments or
example, near a swimming pool or a damplWet peripherals, follow the procedures in accordance
room.
with Rodgers' instructional manual.
5. Use of this instrument, either alone or in
14.
Take care that objects do not fall orliquids spill
combination with an amplifier and headphones or
into the instrument.
speakers, may be capable of prodUcing sound
levels that could cause permanent hearing loss.
15. Service
the instrument with qualified service
DO NOT operate for a long period of time at a personnel when:
high volume level or at a level that is
uncomfortable. If you experience any hearing
a.
The power cord or plug has been damaged.
loss or ringing in the ears, you should consult an
aUdiologist.
b.
Objects have fallen or liquid has spilled into
the instrument.
6. Locate the instrument so its position does not
interfere
with its proper ventilation. c. The instrument has been exposed to rain or
other weather damage.
7. Locate the instrument away from heat sources
such as radiators, heat registers orother products
d.
The instrument does not appear to operate
that
radiate heatdirectly onto the instrument. normally or exhibits amarked change in
performance.
8. Protect the instrument from dust as much as
possible.
e. The instrument has been dropped orthe
enclosure
has been damaged.
9. Connect the instrument to apower source only of
the type described in the operating instructions or 16. Do not attempt to service the instrument beyond
as marked on the instrument. Do NOT attempt to that described in the user maintenance or
defeat the grounding
connection of the three- technical service manuals. Refer all other
prong attachment plug. This is asafety feature. If servicing to qualified technical service personnel.
you are unable to insert the plug into the outlet,
contact an electrician to replace your obsolete
outlet. Do NOT defeat the safety purpose of the
plug.
WARNING: THIS INSTRUMENT MUST BE EARTH GROUNDED.
You must GROUND instruments equipped with aTYPE AC, 3WIRE GROUND PLUG.
SAVE THESE INSTRUCTIONS
i

FCC NOTICE
Radio and Television Interference
The Rodgers Classic Organ uses and generates small amounts of radio-frequency
(RF) energy. The instrument complies with the limits set for Class A and Class B
computing devices. FCC Rules, Part 15, Subpart Jdefine the limits for radio and
television interference in a residential installation.
Follow the installation and the use instructions in this manual, or the instrument
could potentially cause interference with some radio or television reception. In
the unlikely event this occurs, we encourage the user to try the following
corrective
measures:
,/ Turn the instrument OFF to see if it is the actual source of the
interference.
Disconnect the peripheral devices and their input/ output
cables one at atime. If the interference stops, it is caused by
the peripheral device or its I/O cable.
Try coiling and uncoiling the instrument's power cord in
different ways.
Connect the instrument's power cord to a power outlet on a
different circuit.
Move
the instrument farther away from the radio or television
receiver.
Turn the radio or television receiver until the interference
stops.
Connect the radio or television receiver to adifferent power
circuit.
Reorient or move the receiver antenna farther away from the
instrument. Consider installing arooftop antenna with coaxial
cable lead-in between the antenna and receiver.
Consult the nearest Rodgers Classic Organ dealer for more
information if the above corrective measures don't remove the
interference.
ii

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Table of Contents
CAUTIONS and Notice to Users inside cover
Safety Instructions i
FCC Notice ii
Table
of Contents iii
Overview ofthe Oxford 940 page 1
Features
page 2
Tum On{fum Off page 2
Divisions page 2
Selecting
or Retiring aStop page 2
FourMemory Combination Action (Pistons) page 3
Setting the Pistons page 3
Couplers page 4
Reversibles page 5
Tremulants page 5
Tutti page 5
Viewing What is Set on Tutti page 5
Setting aTutti page 5
Crescendo and Orchestral Crescendo Pedal page 6
Setting the Standard Crescendo page 6
Setting the Orchestral Crescendo page 7
Expression Pedals page 8
Great/Pedal Unenclosed page 8
Choir to Swell Expression Coupler page 8
Bass Piston page 9
Setting the Range
of the Bass Piston page 9
Melody Pistons page 10
Setting the Range
of the Melody Pistons page 10
Tuning Knob page
11
Random Detuning page
11
Temperaments page
11
Reverberation page 12
Transposer page 12
Headphone Jack page 12
Zimbelstem page 12
Antiphonal On/Main Off page 12
Rodgers Hand-Crafted Pipes page 13
Pipes Off/Ancillary On page 13
Choir/Great Transfer page 13
Lamp Intensity Control page 13
Automatic Shutdown Timer page 14
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iii

IOVERVIEW OF THE OXFORD 940 I
Thank: you for choosing the Rodgers OXFORD 940. The OXFORD 940 is the industry's highest
quality church organ in both sound and construction, and will provide many years of reliable service.
The OXFORD 940 is athree-manualclassicalorgan that incorporates an eclectic specification and
authentic pipe organ sounds achieved through Rodgers PDI (Parallel Digital Imaging) technology. In
addition to its standard eight-channel audio system, the OXFORD 940 has provisions for additional
amplification and antiphonal (echo) speaker systems.
The OXFORD 940 utilizes lighted drawknob and tilt tab stop controls. All traditional couplers
(unisons, subs andoctaves) areincluded, as well
as an adjustable combination action (pistons) withfour
memories and many standard reversibles and other functions.
The Rodgers OXFORD 940 console is constructed
of the finest woods and veneers, suitable in the
most elegant surroundings.
It is unsurpassed in beauty and longevity.
Real wind-blown pipe ranks may be added to the Rodgers OXFORD 940. There are many
configurations available to choose from for expansion
of the organ specification.
The Rodgers OXFORD 940 is completely voiced and tuned for optimum tonal authenticity. A
Rodgers factory-trained technician can provide any additional on-site voicing
or finishing that may be
desired.
TheOXFORD 940offers full MIDI (Musical InstrumentDigital Interface) capability, allowing the
organist to control other MIDI devices (keyboards, sequencers, rhythm units, sound modules, etc.).
MIDI allows the performer full recording andplaybackcapabilities using an external MIDI sequencer.
Rodgers organs are built in Hillsboro, Oregon, USA. Through the most advanced technology
available, the Rodgers Instrument Corporation, amember
of the Roland Group, delivers proven
reliability, design innovation and atradition
of musical excellence, marking ourposition as
The SoundChoice!
1

.1 .... 1 FEiiiiiiiiiiiiATUREiiiiiiiiiiiiiiiS II
To get started, here is atour of the basic operations of the Rodgers OXFORD 940:
TURN ON/TURN OFF
To tum theorgan on, tum the key finnly to theright (clockwise) and hold for 1-2 seconds. Release.
The powertotheorganison. To tum thepoweroff, tum thekeytotheleft(counterclockwise)andrelease
after 1-2 seconds.
DIVISIONS
The following groupings of stops (drawknobs) affect the indicated manuals (keyboards)
or pedalboard:
PERCUSSIONS -----------------,
INTERMANUAL COUPLERS
SWELL-------.....,
PEDAL------~~
I
IIUl] ill ill mIl ~
00000 000000 0000 0 0
00000 000000 0 00 000 0
o 0000 000000 0000 0
PERSONAL MEMORY CARD SLOT ~'
,-Lr-------- GREAT
rl,-------- CHOIR
IIIi II I, I Iii II
ITTI
j
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SELECTING OR RETIRING ASTOP
Pullthe desired drawknobtoward you; it will light, indicating it is on. Push the drawknobin to turn
off the stop; the light will go off, indicating the stop is off.
2

FOUR MEMORY COMBINATIONACTION
(pistons)
The OXFORD 940 features acombination action easily changed by the organist from the
console.
The organistcan pre-select favorite registrations and make rapid changes in tone color
using this advanced system. Most pistons will light when pressed.
Rodgers microprocessor combination action is aspecifically refined four memory system. This
gives the organist atotal
of 40 general combinations (activated by pistons and toe studs) and 20
independent divisional combinations each for the Swell, Great, Choir and Pedal. Pedal combinations
are activated
by toe pistons only.
/1
I
/1
-PERSONAL MEMORY
CARD SLOT
7
GENERAL PISTONS
\
fjtJfJCJ~
~Ell]
.. .-~ -
~ SETTING THE PISTONS:
~ ~ ""'-SWELL PISTONS
REVERSIBLES
~ "" GREAT PISTONS
=> => c::::> ~ CHOIR PISTONS
~1·n"iFij1 ~ e
t1 a C!t gPEDAL PISTONS
~ ~--+--lf--+-
1. Select amemory (one through four) by pushing MI, M2, M3 or M4. (Note:
Apiston cannot be set
if the memory is locked. Please refer to "Locking or Unlocking
Combination Memories, Crescendos orTutti" at the back
of this manual.)
2. Select the stops desired.
3. Push the SET piston and hold.
4. Whileholding the
SET piston,pushthedesiredcombination piston andthenreleaseboth
pistons.
3

COUPLERS
There are two types of couplers on the OXFORD 940: intennanual and intramanual.
~ The intennanual couplerenables stops of one division to be played on
another keyboard or pedalboard. Examples of intennanual couplers are
SWELL
TO GREAT 16', SWELL TO GREAT 8' and SWELL TO GREAT 4'.
These couplers are located on the tilt tabs above the Swell manual.
INTERMANUAL
;Notes
:J heard with
\8' coupler
added.
Keys played
and heard.
Notes
heard
with
4' coupler
added
4
~ The intramanual coupler allows stops to be played at adifferent pitch
level
or levels on the manual where the stop is located.
Examples
of intramanual couplers are SWELL 16' and SWELL 4'.
(Note: The 16' coupler is also known as aSub Octave Coupler,
and the 4' coupler is also known as an Octave Coupler.)
These couplers are located on drawknobs in the Swell division.
INTRAMANUAL

REVERsmLES
The OXFORD 940 is equipped with reversible thumb and toe pistons. These control certain
couplers, stops and functions. Press the piston to turn on, and press again to
tum off. All reversible
thumb pistons will light (except the zimbelstern) when activated.
TREMULANTS
Tremulants create achange in pitch (sharp and flat) and in amplitude (volume). The use of the
tremulant adds warmth to solo or small ensemble combinations and is useful in gospel and romantic
music. Each manual division has an independent tremulant, affecting only the stops in the division
where that tremulant is located. The FLUTE VIBRATO piston affects all the flute voices
on the
manual divisions
of the organ. It is adeeper and faster tremulant than the other tremulants. Each
independent tremulant is adjustable for both speed and depth. Refer to "Tremulant Adjustments" in
this manual.
TUTTI
There are times when afull organ registration is needed immediately. The
OXFORD 940 is equipped with TUTTI thumb and toe pistons which can
be set with any combination of stops. Press either piston to tum on
the TUTTI, and
pres~ again to turn it off. When TUTTI is on,
the top four segments
of the Crescendoffutti indicator will light red.
The Crescendoffutti indicator is located to the right
of the tilt tabs above the Swell manual.
~ VIEWING WHAT IS SET ON TUTTI:
While holding aTUTTI piston in, press SET piston. To tum off
indicator, press cancel.
~ SETTING ATUTTI:
Select the desired combination. While holding SET in, press the
TUTTI piston. (Note: TUTTI cannot
be setunless it is unlocked.
Please refer to "Locking orUnlocking Combination Memories,
Crescendos orTutti" at the back
of this manual.)
5

CRESCENDO AND ORCHESTRAL CRESCENDO PEDAL
The OXFORD 940 has aCrescendo Pedal and two Expression Pedals.
The slightly raised pedal on the right is the Crescendo Pedal, which gradually adds afactory
pre-detennined selection
of stops as it is pressed forward. The Crescendo Pedal does not affect the
stops already set up on the organ but merely adds to them. Stops added by the Crescendo Pedal do
not light.
Two independent Crescendo sequences are provided. The Standard sequence is available when
the organ is ftrst turned on and anytime the
aRCH CRESC piston is unlit. The OXFORD 940is
also equipped with an Orchestral Crescendo, giving the organist aromantic crescendo sequence that
includes tremulants and celestes. Pressing the ORCH CRESC piston, which is areversible piston,
causes
it to light and activates the Orchestral Crescendo sequence.
When the Crescendo Pedal
or the Orchestral Crescendo Pedal is in use, the Crescendoffutti
indicator will light in green segments (from bottom to top), as the pedal is depressed and more stops
are added.
Achange in the setting of eithercrescendo differing from the sequence set at the factory may be
desired. (Note: If the original factory setting is everdesired in the future, please refer to the back of
this manual.)
~ SETTING THE STANDARD CRESCENDO:
1. Make sure the Standard Crescendo sequence is selected (the ORCH CRESC
piston will be unlit). (Note: The Crescendo cannot be set unless
iris unlocked.
Please refer to "Locking or Unlocking Combination Memories, Crescendos or
Tuttis" at the back of this manual.)
2.
Hold SET and press the ORCH CRESC piston. The aRCH CRESC piston
will flash, and the console display will indicate:
1"'. 1::) I::~ c c'· C C "I" hi !"! f"". L:~
' ••• ·1 ". L. __ _ L._ 1 1 1'.,,' L.·· L._
,"- -1- r··. ,"- -I" ,...".... r- ·1
.:::' i L.·' .:::' ir'; i.:j [:: j.
The stops and couplers currently set on stage one of the 63 stages in the crescendo sequence
will light.
3. The current sequence may be viewed by advancing through the stages one at a
time using the SELECT knob. At each stage, the stage number
(l to 63) will be
indicated on the display, and the stops and couplers set on the stage will light.
6
,"

4. To add one or more stops to the sequence, go to the stage where the stop(s) are
to be added, turn
on the stop(s) and press SET.
5.
To delete astop, go to the first stage in which the stop turns on, turn off the
stop
and press SET.
6.
Each stop can be turned on at any stage and turned off at any later stage. As
an example, assume the 8' FLUTE CELESTE II is to go on at stage one and off at stage
25.
Go to stage one, tum on the 8' FLUTE CELESTE II and press SET.
Then go to stage 25, turn off the 8' FLUTE CELESTE IT and press SET.
7.
To clear the entire crescendo sequence (stages 1through 63), hold SET and press
General Cancel. This will also reset the current stage to number one.
8. When building acompletely new sequence, it is advisable to first write the sequence
down, then assign stage numbers from 1to 63 to each stop
or group of stops in the
sequence. Usually, there are
more stages than stops in the sequence, so it is necessary
to skip some stages to make the sequence end at
or near stage 63. If this is not
done, the sequence will end before the Crescendo Pedal is fully depressed.
9.
To exit the Crescendo Set Mode at any time, press General Cancel. Any changes
in
the sequence made up to that point will be saved.
The OXFORD 940 is also equipped with an Orchestral Crescendo, giving the organist aromantic
crescendosequence thatincludes tremulants andcelestes. Pressing the
ORCH CRESC piston, whichis
areversiblepiston,causesit to lightandcauses the Orchestral sequence tobeactivated. Achangeinthe
setting
of theOrchestralCrescendomay be desiredthatwoulddifferfrom the sequencesetatthefactory.
(Note:
If the, factory setting is ever desired in the future, please refer to the back of this manual.)
~ SETTING THE ORCHESTRAL CRESCENDO:
1. Select Orchestral Crescendo using the ORCH CRESC piston (the ORCH
CRESC piston will be lit). Note: The Crescendo cannot be set unless it is
unlocked. Please refer to "Locking or Unlocking Combination Memories,
Crescendos
or Tutti" at the back of this manual.
2.
Hold SET and press ORCH CRESC piston. The ORCH CRESC piston
will flash, and the console display will indicate:
I···· r··: r·· I··· I···· I··· r·· -.- ..... I···' r··. r·-
i.. •• p:. i::: .:::' i.... .:::' i::: i i.ii• ..i L.·: i:::
I···. r··. 1····1 I I··· -.-1···' I···· r·- ·1
i...i p:. i.. •• i"i .:::' it·; i.:j [:: .i.
The stops and couplers currently set on stage one will light.
7

3. The current sequence may be viewed by advancing through the stages one at a
time using the SELECT knob. At each stage, the stage number
(1 to 63) will be
indicated on the display, and the stops and couplers set on the stage will light.
4.
To add one or more stops to the sequence, go to the stage where the stop(s) are
to be added,
tum on the stop(s) and press SET.
5.
To delete astop, go to the first stage in which the stop turns on, tum off the
stop and press SET.
6. Each stop can be turned
on at any stage and turned off at any later stage. As an
example, assume the 8'
FLUTE CELESTE II is to go on at stage one and off at stage
25.
Go to stage one, tum on the 8' FLUTE CELESTE II and press SET. Then go to
stage 25,
tum off the 8' FLUTE CELESTE II and press SET.
7.
To clear the entire crescendo sequence (stages 1through 63), hold SET and press
General Cancel. This will also reset the current stage to number one.
8. When building acompletely new sequence,
it is advisable to first write the sequence
down, then assign stage numbers from 1to 63 to each stop
or group of stops in the
sequence. Usually, there are
more stages than stops in the sequence, so it is necessary
to skip some stages to make the sequence
end at or near stage 63. If this is not
done, the sequence will end before the Crescendo Pedal is fully depressed.
9.
To exit the Crescendo Set Mode at any time, press General Cancel. Any changes
in the sequence made up to that point will be saved.
EXPRESSION PEDALS
The center pedal controls the overall volume of the Swell division. The left pedal controls the
overall volume
of the Choir, Great and Pedal divisions. These pedals are used to give variety of
expression to the music played. Pressing the pedal forward increases the volume; drawing it back
decreases the volume.
GREAT/PEDAL UNENCLOSED
Many traditional pipe organs are tonally designed with the Great and Pedal divisions
non-expressive. On the OXFORD 940, the Great and Pedal division voices are normally expressed
with the left expression pedal.
If amore traditional effect is desired by the organist, the Great/Pedal
Unenclosed tablet allows the Great
and Pedal division voices to play at full volume, while the Choir
remains under expression.
CHOIR TO SWELL EXPRESSION COUPLER
The Choirto Swell Expression Coupler allows the Choir and Swell divisions to be expressed by
using the center expression pedal.
The Great and Pedal divisions remain expressive on the left
pedal.
8
.,..

....
BASS PISTON
The name of thisfeature isderivedfromthe ancient term "Basso Continuo," meaningthoroughbass.
When this reversible piston is pressed,
it will light. Any stops or couplers on in the Pedal division will
soundfrom the lowestkey beingplayed
on theGreatmanual. Thisprovidesapedalbasswithouthaving
to actually
play the pedalboard with the feet.
In itsnormalsetting,theBASSPistonaffectskeys 1through 24 of theGreatmanual, but itsrange
is programmable. As few notes as 1through 13,
or asmany notes as 1through 32 may beprogrammed.
~ SETTING THE RANGE OF THE BASS PISTON:
1. Hold SET and press the BASS Piston, which will start flashing.
2. Release both pistons.
3.
While the BASS Piston is flashing, press a key which corresponds to
the highest note the range is to extend. Any note from key 13 to key
32 may be selected. After the selected key has been pressed, the BASS
Piston will shut off. (Note:
When akey is pressed to set the range, no
sound will be heard even if stops are on, so no disturbance will be made
if programming during aperformance.)
4.
To use the new range, press the BASS Piston. This range will be saved
when the organ is turned off .
9

MELODY PISTONS
There are two MelodyPistons; one for the Swelldivision (MEL SW) and one for the Choir division
(MEL CH). When either Melody Piston is pushed,
it will light. Any stop or coupler of the Swell (or
Choir) division will sound from the highest key being played on the Great manual. This allows asolo
melody and an accompaniment to be played from the same manual.
In its normal setting, the Melody Piston
(MEL SW or MEL CH) affects keys 25 through 61 on the
Great manual, butits
range is programmable. The range may be extended down to key 20 or up to key
49.
The range applies to both MEL SW and MEL CH.
~ SETTING THE RANGE OF THE MELODY PISTONS:
1. Hold SET and press either the MEL SW or MEL CH Piston, which starts flashing.
2. Release both pistons.
3. While the
MEL SW or MEL CH Piston is flashing, press a key which corresponds to
the lowest note the range
is to extend. Any note from key 13 to key 49 may be
selected. After the selected key has been pressed, the MEL SW or MEL CH Piston
will shut off. (Note: When akey is pressed to set the range, no sound will be heard even
if stops are on, so no disturbance will be made if programming during aperformance.)
4. To use the new range, pressthe MEL SW or MELCH Piston. This range will be saved when
the organ
is turned off.
10
",-

.,
TUNING KNOB
The OXFORD 940 is equipped with aTUNING knob. This allows the entire organ to be tuned
easily
and quickly to apiano or musical instrument not at standard concert pitch (A 440). If the
TUNING knob is pushed in, the organ will remain at standard concertpitch, and turning the knob
will have no effect. To alter the pitch, pull the TUNING knob out until it clicks, then turn the knob
to set the pitch. Ifthe OXFORD 940 has been augmented with pipes, the
TUNING Knob can be
used to bring the pipes and electronics in tune with each other. The range of the TUNING knob is
one-halfsemitone sharp
or flat.
RANDOM DETUNING
One of the essential ingredients of pipe organ ensemble arises from the small amount of pitch
error in
each pipe. No matter how carefully an instrument is tuned, small changes in temperature or
humidity will cause the pipes to drift from their original pitches. Reed pipes are especially prone to
drift
over time due to "creeping" of the tuning wire with cyclic temperature variations.
The Random Detuning feature causes selected notes to receive asmall amount of detuning. The
amount
of detuning is chosen at random for each note of each voice; some notes will not be detuned
at all. The number of notes detuned and the maximum amount of detuning are selected for each
voice to mimic the behavior of an equivalent pipe set. For instance, reeds will exhibit more pitch
error than flues. Because the detuning
is random, there is no degradation of the overall temperament
of the instrument, and the amount of detuning is no more than one would experience in arecently-
tuned pipe instrument.
This detuning process happens each time the organ is turned on. Once computed, the pitch
of
each note remains constant. Thus, the tuning will be alittle different, as it would be with a pipe
organ, each time the organ is used.
TEMPERAMENTS
Although most instruments today are tuned in the Equal Temperament system, there has recently
been a
renewed interest in historic temperaments and their effects on the music written for organs
employing these temperaments. The OXFORD
940 provides the organist with achoice of eight
temperaments: Equal, Kimberger, Werckmeister I, Werckmeister III, Mean-tone, Pythagorean,
Young I
and Young II. Note: Temperaments other than Equal should be used with care, since most
other temperaments are appropriate only for alimited range of music.
To choose atemperament:
1. Hold SET and tum the SELECT knob to locate the TEMPERAMENT menu item.
2. Release the
SET piston, and turn the SELECf knob to choose atemperament. The tuning
is altered immediately.
The organ will always return to equal temperament when first turned on.
11

REVERBERATION
The OXFORD 940 includes an internal acoustic enhancement (reverberation) system. To enable
ordisable this feature, hold SET and turn the SELECT knob to locate the INTERNAL REVERB
menu item. Release SET, and tum the
SELECf knob to display ON or OFF.
The REVERB LEVEL control, located on the Connector Panel under the keydesk to the left, is
used to adjust the loudness
of the reverberated sound.
TRANSPOSER
The TRANSPOSER is the default function for the console display and SELECf knob. Turning
the SELECf knob while the TRANSPOSER is displayed will raise or lower the pitch of the organ
up to four semitones (half steps). Many singers need akey change to accommodate their voice
range, making the TRANSPOSER especially useful for accompanying soloists by eliminating the
need to mentally transpose music on aprinted sheet into amore suitable key.
HEADPHONE JACK
The OXFORD 940 has aHeadphone Jack located under the keydesk to the left in the Connector
Panel. When aset
of headphones is plugged into the jack, the speaker system shuts off, allowing the
organist privacy when playing.
If the organ is equipped with pipes, the pipes will also shut off. It is
recommended that you use stereo headphones with an impedance not less than 8ohms
(0). The
Headphone Jack is designed to run only ONE headphone set at atime.
ZIMBELSTERN
The OXFORD 940 is prepared for aZimbelstern (bell star). This percussive device is most often
used in bright music
of the Baroque period. The Zimbelstem (ZIMBEL) is activated by an unlighted
reversible piston and toe stud (push to turn on, push again to turn oft).
ANTIPHONAL ON/MAIN OFF
The OXFORD 940 is prepared with ANTIPHONAL ON/MAIN OFF tablets which can operate
an additional speaker system. An antiphonal speaker system is usually installed at the opposite end
of the building from the main organ, allowing greater musical flexibility. The ANTIPHONAL ON
tablet activates this additional speaker system, and the MAIN OFF tablet turns offthe main organ.
(Note:
If the MAIN OFF tablet is depressed, the ANTIPHONAL ON tablet must also be depressed
or the organ will not sound through either system.)
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RODGERS HAND-CRAFTED PIPES
All OXFORD 940 instruments are designed to incorporate from 1to 19 ranks of pipes. These
pipes are exquisitely built to Rodgers' exacting standards from the finest metals and woods. Pipe
ranks can
be included in the specification of the OXFORD 940 at the time of purchase or as future
additions.
PIPES OFF/ANCILLARY ON
When the OXFORD 940 is equipped with pipe ranks, certain stops will control pipe voices and
other stops will control electronic voices. There are two reversible pistons affecting the pipe stops
of
the Great/Pedal divisions and two pistons affecting the pipe stops of the Choir division.
When an ANCILLARY ON piston is pressed, electronic stops are added to the pipe stops. When
both PIPES
OFF and ANCILLARY ON pistons are pressed, the pipes are silenced and only
electronic stops sound. (Note:
If aPIPES OFF piston is turned on without turning on the
corresponding ANCILLARY
ON piston, the affected stops will not sound at all.)
CHOIR/GREAT TRANSFER
This control finds use in French organ literature. French organ design places the Great
division (Grand Orgue) on the bottom manual and the Choir division (Positit)
on the second manual.
The Choir/Great Transfer (CH-GT TRANS) piston moves the Great division stops, couplers and
divisional pistons to the Choir manual and moves the Choirdivision stops, couplers and divisional
pistons to the Great manual.
LAMP INTENSITY CONTROL
The illumination of the drawknob, tilt tab, music rack and pedal lamps is adjusted by aknob on
the right side under the keydesk.
With the
knob pushed in (up), turning the knob clockwise will brighten the drawknob and tilt tab
lamps; turning the knob counterclockwise will dim them.
With the
knob pulled out (down), turning the knob clockwise will brighten the drawknob, tilt tab,
music rack
and pedal lamps; turning the knob counterclockwise will dim them.
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AUTOMATIC SHUTDOWN TIMER
When the organ is on and left unattended, it will automatically tum off after two hours.
Operating any key
or control will reset the timer for another two hours.
Playing the organ from aremote MIDI keyboard or sequencer will also reset the two-hour
automatic timer.
RODGERS DIGITALDYNAMIC WIND
Part of the personality of an individual pipe organ relates to the steadiness of the wind supply to
the pipes. Because air is an elastic medium, there is some amount
of "give" in the wind supply of
every pipe instrument. Some organs exhibit more unsteadiness than others, usually according to the
type
of wind regulators used (single or multiple reservoirs, schwimmerregulators, etc.). Asmall
amount
of unsteadiness in the wind helps the listener to identify the sound as that of awind-driven
instrument, while too much can be distracting, particularly in "lively" music. Certain types
of music,
though, seem to gain charm from aless-than-perfect wind
syste~.
Another characteristic of pipe organs involves changes in pitch which occur in individual pipes
when playing large numbers
of pipes together. These pitch changes are due both to variations in
wind pressure as the wind demand becomes greater, and to the influence
of the sound from
neighboring pipes. This latter effect is greatest upon large-scale flute voices, and least upon narrow-
scaled string voices. Even though this results in significant detuning, the human ear seems to
perceive instead an increase in ensemble effect.
Rodgers' Digital Dynamic Wind emulates these characteristics by modeling the behavior
of pipe
organ wind regulating devices and the response
of pipes to aslightly unsteady wind supply. Each
organ division has its own "software reservoir," and each voice is programmed to respond to wind
variations in the same way that its equivalent pipe rank
or ranks would respond.
WIND STABILIZER
In order to adjust the behavior of the organ wind system, aWIND STABILIZER menu item is
provided on the console display. This stabilizer operates in much the same way as does the stabilizer
control provided on some pipe instruments. In the OFF position, the wind has anoticeable
unsteadiness in the playing
of rapid passages. The 1/2 position reduces this unsteadiness somewhat,
and the ON position makes the wind steady under all conditions. The position will
be remembered
when the organ is turned off.
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