Hammond SK1 User manual

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OVERALL
EFFECTS

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OVERALL EFFECTS
You can add a number of effects to the different voice divisions of your Sk-series instrument. This section will explain
these in detail.
ËEFFECTS Controls
The Effects Controls are located in the upper right portion of the Control Panel, and consist of four Touch Tabs and a
Rotary Control associated with each Touch Tab.
DRAWBAR OVER DRIVE and EFFECT
These controls allow you to add Overdrive as well as Multi-Effects to the Drawbars, and
to control the amount of the added effects.
EXTRA VOICE EFFECT
These controls allow you to add Overdrive as well as Multi-Effects to the Extra Voices, and
to control the amount of the added effects.
REVERB
These controls allow you to add Reverberation to the Drawbars and Extra Voices, and
to control the amount and type of Reverb.

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ËOVERDRIVE\EFFECTS (OD\EFF) Edit Menu
This Advanced Feature Menu allows you to add different effects to the Drawbar and Extra Voice sections.
The OD\EFF Edit Menu consists of four pages:
1. Drawbar Overdrive,
2. Drawbar Effects,
3. Extra Voice Overdrive,
4. Extra Voice Effects.
The next few pages will explain the Overdrive and Effects in the order in which they appear in the Information Center
Display.
Page 1 -DRAWBAR OVERDRIVE
When used with Drawbars, Overdrive adds the fuzzy, raspy, "dirty" sound created by the vacuum tubes of a tube-style
Leslie Speaker when its volume is pushed past its sound limit.
Accessing the DRAWBAR OVERDRIVE Menu using the Touch Buttons:
1. FromeitherofthePLAYScreens,touchtheMENU/EXITTouchButtontoseethefirstscreenoftheMENU
Mode. You will see “A" displayed in the extreme upper left corner of the Information Center Display.
2. Touch the PAGE UP Touch Button two times. The legend “OD\EFF” in the upper left corner of the
Information Center Display will be blinking.

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3. Touch the ENTER Touch Button. The Information Center Display should now look like this:
The number just below the word “DRIVE” should be blinking.
Accessing the DRAWBAR OVERDRIVE Menu using the Shortcut:
Touch and hold the DRAWBAR OVERDRIVE Touch Tab. After approximately 1 second, the screen shown
below will display.
Notice that “EX-OD” is blinking. This occurs if you use the Shortcut to access the DRAWBAR OVERDRIVE
MenuPage. TheinstructionswhichfollowassumethatyouhaveusedtheTouchButtonstoaccesstheDRAWBAR
OVERDRIVE Menu Page. If you have used the Shortcut, touch the PAGE LEFT Touch Button to cause the
number underneath the word “DRIVE” to blink. You can then follow the instructions below.
NOTE: Drawbar Overdrive is available on organ types “BType1,” “BType2,” “Mellow,” “Vx” and “Farf.” It is not
available for the “Pipe” organ type.
Drawbar Overdrive Amount
This Advanced Feature allows you toadjustthe amountof Overdrive thatyou prefer. You can select a value from “0” (no
Overdrive) to “127" (maximum Overdrive).
Turn either the VALUE Rotary Control to the right to increase the Overdrive effect.
Turn either the VALUE Rotary Control to the left to decrease the Overdrive effect.
NOTE: You can use the DRAWBAR OVERDRIVE Rotary Control to increase or decrease Overdrive while
playing.

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From the previousscreen,touch the PAGE RIGHT Touch Buttononce. The InformationCenterDisplay shouldnow
look like this:
The legend underneath “EXP.” should be blinking.
Drawbar Overdrive Expression Control
This Advanced Feature allows you to select whether you want to use a connected Expression Pedal to control overall
Volume, amount of Overdrive, or both. The data chart below shows the options you may select.
Drawbar Overdrive Expression Control Options
Description Function
EX-OD The Expression Pedal will control both Volume and Overdrive.
OD-EX The Expression Pedal will control only the Volume.
OD ONLY The Expression Pedal will control only the amount of Overdrive.
INPUT the Expression Pedal will control both Volume and Overdrive, butbya lesser amountthan EX-OD.
Turn the VALUE Rotary Control to make your selection.
From thepreviousscreen,touchthePAGE RIGHT TouchButtononce. TheInformationCenterDisplay shouldnow
look like this:
The word underneath “TYPE” should be blinking.
Drawbar Overdrive Type
This Advanced Feature allows you to selectthetype ofOverdrive applied to the Drawbars. Each differentOverdrive type
simulates a particular type of pre-amplifier or amplifier. The data chart below shows the options you may select.
Drawbar Overdrive Type Options
Description Function
Tube Replicates the overdrive of a tube-driven amp.
Stomp Replicates the overdrive of a “stomp box”.
Clip Adds a precise flattening or “clipping” to the audio signal
EPAmp Replicates the pre-amplifier of an electric piano.
Turn the VALUE Rotary Control to make your selection.

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Page 2 -DRAWBAR MULTI-EFFECTS
ThisAdvancedFeatureMenuPageallowsyoutoselecttheEffectsthatwillbeaddedtotheDrawbarswhentheEFFECTS
Touch Tab is “ON” (red LED lit).
Accessing the DRAWBAR MULTI-EFFECTS Menu Page using the Touch Buttons:
1. FromeitherofthePLAYScreens,touchtheMENU/EXITTouchButtontoseethefirstscreenoftheMENU
Mode. You will see “A" displayed in the extreme upper left corner of the Information Center Display.
2. Touch the PAGE UP Touch Button two times. The legend “OD\EFF” in the upper left corner of the
Information Center Display will be blinking.
3. Touch the ENTER Touch Button. The Information Center Display should now look like this:
4. Touch the PAGE UP Touch Button twotimes. The Information Center Display should now look like this:
You are now in the first page of the DRAWBAR EFFECT Menu.

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Accessing the DRAWBAR MULTI-EFFECTS Menu Page using the Shortcut:
Touch and hold the DRAWBAR EFFECTS Touch Tab. After approximately 1 second, you will see a screen
similar to the one below:
When accessing this Menu Page using theShortcut,the DrawbarEffectshown in the Information CenterDisplay
will be the one selected by the particular Patch that is active. This means that the Effect may be different for
different Patches.
The data chartshown below describes the differentDrawbar Multi-Effects in the order in which theyappear in the
Information Center Display.
DRAWBAR MULTI-EFFECTS
Description Function
Tremolo Raises and lowers the amplitude or volume at a determined rate.
Auto Pan Moves the sound back and forth between Left and Right channels.
Wah-Wah Adds and subtracts high frequencies.
Ring Modulation Merges two frequencies together to produce a bell-like sound.
Phaser Varies the phase relationship of two audio signals to each other.
Flanger Mixes two identical signals together, with one of them time-delayed by a small amount.
Chorus An enhancement to the sound similar to several instruments sounding in unison
Delay Recycles the tone to create an echo effect.
NOTE: Drawbar Effects are available on all organ types except the “Pipe” organ type.
Whether accessing this Menu Page using the Touch Buttons or the Shortcut, you can turn the VALUE Rotary Control to
select the effect you want to edit.
The next pages will describe the various Effects and the choices possible within each Effect.

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Drawbar Effects - Tremolo
If you followed the instructions on the previous page, the Information Center Display should look like this. If it does
not, turn the VALUE Rotary Control until the word “Tremolo” appears on the bottom line of the display.
The word “Tremolo” should be blinking.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “WAVE” should be blinking.
You can now select the characteristics for the Tremolo.
WAVE - Tremolo Waveform
This Advanced Feature allows you to selectwhich waveform willbe used to modulate the volume. The data chartbelow
shows the options you may select.
Drawbar Tremolo Wave Options
Description Function
TRI Triangle wave, which will change the volume smoothly from loud to soft to loud.
SQR Square wave, which will cause the volume to rise and fall suddenly.
SAW Ascending Sawtooth wave, which will cause the volume to rise suddenly and fall gradually.
S&H Sample & Hold, which will cause the volume to rise and fall randomly.
Dsqr Dull Square wave - similar to SQR, but with a smoother rising and falling of the volume.
Turn the VALUE Rotary Control to make your selection.

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From thepreviousscreen,touch thePAGE RIGHT Touch Buttononce. The InformationCenterDisplay shouldnow
look like this:
The legend underneath the word “RATE” should be blinking.
RATE - Tremolo Rate
ThisAdvancedFeatureallowsyoutoadjustthespeedofthetremolocycle. Youcanselectfrom“0"(slowestrate)through
“127" (fastest rate)
Turn either the VALUE or the EFFECTS AMOUNT Rotary Control to make your selection.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “DEP” should be blinking.
DEP - Tremolo Depth
This Advanced Feature allows you to adjust the intensity or depth of the tremolo effect. You can select from “0" (no
modulation) through “127" (maximum modulation).
Turn the VALUE Rotary Control to make your selection.

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Drawbar Effects - Auto Pan
This Advanced Feature will smoothly shift or “pan” the sound back and forth between Left and Right channels.
NOTE: This Advanced Feature requires that both Left and Right channels be connected via the LINE OUT jacks
on the Accessory Panel.
NOTE: This Advanced Feature does not affect the digital Leslie.
Fromthepreviousscreen,touchthePAGELEFTTouchButtonrepeatedlyuntilthewords,“EFFECTTYPE”appear
on the top line of the display. If “Auto Pan” does not display on the bottom line, turn the VALUE Rotary Control until
the Information Center Display looks like this:
The word “Auto Pan” should be blinking.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “WAVE” should be blinking.
You can now select the characteristics for the Auto Pan.
WAVE - Auto Pan Waveform
This Advanced Feature allows you to select which waveform will be used to modulate the panning effect. The data chart
below shows the options you may select.
Drawbar Auto Pan Wave Options
Description Function
TRI Triangle wave, which will move the sound smoothly back and forth from Left to Right.
SQR Square wave, which will cause the sound to move suddenly from Left to Right.
SAW Ascending Sawtooth wave, which will cause the sound to move one direction suddenly and
move backl gradually.
S&H Sample & Hold, which will cause the sound to move from Left to Right randomly.
DSQR Dull Square wave - similar to SQR, but with a smoother transition from Left to Right.
Turn the VALUE Rotary Control to make your selection.

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From the previousscreen,touch thePAGE RIGHT Touch Button once. The InformationCenter Display shouldnow
look like this:
The legend underneath the word “RATE” should be blinking.
RATE - Auto Pan Rate
This Advanced Feature allows you to adjustthe rate at which the sound moves from channel to channel. You can select
from “0" (slowest rate) through “127" (fastest rate).
Turn either the VALUE or the EFFECTS AMOUNT Rotary Control to make your selection.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “DEP” should be blinking.
DEP - Auto Pan Depth
This Advanced Feature allows you to adjust the intensity or depth of the panning effect. You can select from “0" (no
modulation) through “127" (maximum modulation).
Turn the VALUE Rotary Control to make your selection.

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Drawbar Effects - Wah-Wah
“Wah-Wah” is a periodic emphasis and de-emphasis of upper frequencies by means of a frequency filter to impart a
speech-like quality to the sound. The term itself is descriptive of the sound produced (what grammaticians call an
“onomatopoeia.”).
Fromthepreviousscreen,touchthePAGELEFTTouchButtonrepeatedlyuntilthewords,“EFFECTTYPE”appear
on the top line ofthe display. If “Wah-Wah” does not display on the bottom line,turn the VALUE Rotary Control until
the Information Center Display looks like this
The word “Wah Wah” should be blinking.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “SRC” should be blinking.
You can now select the characteristics for the Wah-Wah effect.
SRC - Wah-Wah Source
This Advanced Feature allows you to select how the Wah-Wah effect is controlled. The data chart below shows the
options you may select.
Drawbar Wah-Wah Source Options
Description Function
MAN The effect is controlled by the DRAWBAR EFFECT Rotary Control.
EXP The effect is controlled by the Expression Pedal (the “Cry-Baby” effect).
LFO The effect is controlled by the inbuilt Low-Frequency Oscillator.
Turn the VALUE Rotary Control to make your selection.

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From thepreviousscreen,touch the PAGE RIGHT Touch Buttononce. The InformationCenterDisplay shouldnow
look like this:
The legend underneath the word “SENS” should be blinking.
SENS - Wah-Wah Sensitivity
This Advanced Feature allows you to sets the High and Low ranges of the Wah-Wah effect. You can select from “0"
(minimum range) through “127" (maximum range).
Turn the VALUE Rotary Control to the right to increase the range.
Turn the VALUE Rotary Control to the left to decrease the range.
NOTE: TheeffectofthisAdvancedFeaturedependsonthe“SRC”(Source)setting. When“LFO”isselected,either
the VALUE or the DRAWBAR EFFECT Rotary Control can be used to control the excursion of the Wah-Wah effect.
When “EXP” is selected, either the Expression Pedal or the DRAWBAR EFFECT Rotary Control can be used to
control the Wah-Wah sensitivity.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “RES” should be blinking.
RES - Wah-Wah Resonance
This Advanced Feature allows you to set the resonance frequency of the Low-Pass Filter used to control the Wah-Wah
effect. You can select from “0"(minimum resonance) through “127" (maximum resonance). At highernumber settings
the Wah-Wah effect becomes more pronounced and articulated.
Turn the VALUE Rotary Control to the right to increase the amount of Resonance.
Turn the VALUE Rotary Control to the left to decrease the amount of Resonance.

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From the previousscreen,touch the PAGE RIGHT TouchButtononce. The Information CenterDisplayshould now
look like this:
The legend underneath the word “WAVE” should be blinking.
WAVE - Wah-Wah Waveform
ThisAdvancedFeature allowsyou toselect which waveformwillbe usedto modulatethe Wah-Waheffect. Thedatachart
below shows the options you may select.
Drawbar Wah-Wah Wave Options
Description Function
TRI Triangle wave, which will change the sound smoothly from high to low to high.
SQR Square wave, which will cause the filter to rise and fall suddenly.
SAW Ascending Sawtooth wave, which will cause the filter to rise suddenly and fall gradually.
S&H Sample & Hold, which will cause the filter to rise and fall randomly.
NOTE: The SOURCE mustbe setto “LFO” in order for this Advanced Feature to function. See page 13 for
information on how to select the SOURCE.
Turn the VALUE Rotary Control to make your selection.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “RATE” should be blinking.
RATE - Wah-Wah Rate
This Advanced Feature allows you to adjust the rate of the Wah-Wah effect. You can select from “0" (slowest rate)
through “127" (fastest rate).
NOTE: The SOURCE must be set to “LFO” in order for this Advanced Feature to function.
Turn the VALUE Rotary Control to the right to make the rate faster.
Turn the VALUE Rotary Control to the left to make the rate slower.

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From thepreviousscreen,touchthePAGE RIGHT TouchButtononce. TheInformationCenterDisplay shouldnow
look like this:
The legend underneath the word “FREQ” should be blinking.
FREQ - Wah-Wah Frequency
ThisAdvancedFeatureallowsyoutoadjustthecentralfrequencyoftheWah-Waheffect. Youcanselectfrom“0" (lowest
frequency) through “127" (highest frequency).
Turn the VALUE Rotary Control to the right to increase the frequency.
Turn the VALUE Rotary Control to the left to decrease the frequency.
NOTE: You can also use the DRAWBAR EFFECT RotaryControlto adjustthis Advanced Feature;however,
the SOURCE must be set to “MAN” in order to do this.

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Drawbar Effects - Ring Modulation
“Ring modulation” is a signal-processing effect whereby two different frequencies are mixed together in such a way as
to eliminate, as much as possible, the individual frequencies themselves, leaving only the sum and the difference of the
two frequencies. In analog circuits, this is accomplished by arranging diodes in a circle or ring, giving rise to the term,
“ring modulator.” The result is a sound rich in overtones and typically having somewhat of a bell-like or metallic quality.
Because of this, the sound is sometimes called a “Klang tone.”
Fromthepreviousscreen,touchthePAGELEFTTouchButtonrepeatedlyuntilthewords,“EFFECTTYPE”appear
on the top line ofthe display. If “Ring Mod.” does not appear on the bottom line, turn theVALUE Rotary Control until
the Information Center Display looks like this
The words “Ring Mod” should be blinking.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “SRC” should be blinking.
SRC - Source
Because a Ring Modulator requires two frequencies, there needs to be some way to control the “ring” frequency, or the
frequency the sound produced by the playing keys will interface with. This Advanced Feature allows you to select how
the ring frequency will be controlled. The data chart below shows the options you may select.
Drawbar Ring Modulation Source Options
Description Function
MAN Uses the DRAWBAR EFFECT Rotary Control to control the ring frequency.
EXP Uses the Expression Pedal to control the ring frequency.
LFO Uses the inbuilt Low-Frequency Oscillator to control the ring frequency.
Turn the VALUE Rotary Control to make your selection.

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From thepreviousscreen,touch thePAGERIGHTTouchButtononce. TheInformationCenterDisplayshouldnow
look like this:
The legend underneath the word “FREQ” should be blinking.
FREQ - Frequency
This Advanced Feature allows you to adjustthe central ring frequency. You can selectfrom “0" (lowest frequency)
through “127" (highest frequency).
Turn either the VALUE or the DRAWBAR EFFECTS Rotary Control to the right to make the ring frequency
higher.
TurneithertheVALUE orthe DRAWBAR EFFECTS RotaryControlto theleftto make the ring frequency lower.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “MIX” should be blinking.
MIX
This Advanced Feature allows you to adjustthe balancebetween the “dry” signaland the ring frequency. You can select
from “0" (dry signal only) through “127" (ring frequency only).
Turn the VALUE Rotary Control to the right to increase the amount of the ring frequency.
Turn the VALUE Rotary Control to the left to decrease the amount of the ring frequency.

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From the previousscreen,touch the PAGE RIGHT Touch Buttononce. TheInformationCenterDisplay shouldnow
look like this:
The legend underneath the word “WAVE” should be blinking.
WAVE - Waveform
This Advanced Feature allows you to selectwhich waveform willbe used to modulate the ring frequency. The data chart
below shows the options you may select.
Drawbar Ring Modulation Wave Options
Description Function
TRI Triangle wave, which will cause the ring frequency to rise and fall gradually.
SQR Square wave, which will cause the ring frequency to rise and fall suddenly.
SAW Descending Sawtooth wave, which causes the ring frequency to rise suddenly and fall gradually.
S&H Sample & Hold, which will cause the ring frequency to rise and fall randomly.
Turn the VALUE Rotary Control to make your selection.

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From the previousscreen,touch thePAGE RIGHT TouchButtononce. The InformationCenterDisplay shouldnow
look like this:
The legend underneath the word “RATE” should be blinking.
RATE
This Advanced Feature allows you to setthe rate ofthe Low-FrequencyOscillator which can beused to modulate the ring
frequency. You can select from “0" (slowest rate) through “127" (fastest rate).
NOTE: The SOURCE must be set to “LFO” for this Advanced Feature to work.
Turn the VALUE Rotary Control to the right to make the rate faster.
Turn the VALUE Rotary Control to the left to make the rate slower.
From the above screen, touch the PAGE RIGHT Touch Button once. The Information Center Display should now
look like this:
The legend underneath the word “DEP” should be blinking.
DEP - Depth
This Advanced Feature Menu Page allows you to adjust the range ofthe excursion ofthe ring frequency. You can select
from “0" (narrow range) through “127" (wide range).
NOTE: The SOURCE must be set to “LFO” or “EXP” for this Advanced Feature to work.
Turn the VALUE Rotary Control to the right to make the range wider.
Turn the VALUE Rotary Control to the left to make the range narrower.