DIGITAL DELAY
SDD-3000
OWNER’S
MANUAL
KORG®
Congratulations and thank you
for purchasing the Korg SDD-3000
IMPORTANT SAFETY PRECAUTIONS
For long-term reliability and safety, please observe the following precautions and sug9esiions.
Location
To avoid malfunction, do not use the SDD-3000 in the following locations for long periods of time.
?In direct sunlight.
?Exposed to extremes of temperature or humidity.
?In dirty or dusty places,
Power supply and jacks
?Always be sure to use the correct AC line voltage. If line voltage is 90% or less of rated voltage, S/N ratio and stability will suffer. If you have any reason to believe the AC voltage is too low, have it checked with a voltmeter before you turn on the power supply switch.
?Do not use any type of plug except for standard phone plugs, (guitar type) in the input and output jacks.
Maintenance
Wipe the exterior with a soft, dry cloth. Never use benzene, paint thinner, or other solvents.
Interference from electrical appliances
Noise and interference may be picked up from radio, TV, and other electrical appliances (especially those with motors) used nearby. Should interference occur, try placing the SDD -3000 further away from the source of trouble.
Keep this owner's manual
For future reference, please store this manual in a safe place. And return your properly filled in warrantee card for fullest guarantee protection.
Backup battery
The SDD-3000, once programmed, keeps the program intact even when the power switch is turned off. A built -in battery energizes the programmer when the main power is turned off.
Another advantage is that the battery is charged when the main power is on. However, if the unit is not used for over 3 months, the battery could lose its charge and programs could be accidentally erased. Therefore, if you do not use the unit for a long time, charge the battery monthly by turning on the main power for a few hours.
MAJOR FEATURES
?Offers a large number of versatile, high-quality effects such as flanging, doubling, chorus, vibrato, Doppler effect, slapback and echo, at the push of a button.
?Over 1 second delay range (0~1023 milliseconds) standard at full 17 kHz delay bandwidth.
?Low delay path distortion (0.03%, typical) and excellent 94 dB effect dynamic range (88 dB effect SIN ratio), without compander 'breathing' effects, through use of proprietary 13 bit audio conversion technique. Dynamic
range for direct signal is 110 dB (All ratings A-weighted).
?Expanded Modulation section featuring 3 waveforms, envelope follower, and separate delay mod CB input. A 'random' waveform is provided for highly realistic doubling and other effects.
?Flexible Regeneration section, with FEEDBACK control, INVERT switch, and switchable high and low filters to create warm on metallic flanges and doubling, echoes that decay naturally, and many other unique special effects.
?Sophisticated programmer provides 9 different user-changeable programs plus manual setting. Pro grams may be copied and edited, temporarily or permanently.
?All major functions are fully programmable, in cluding Delay time, Regeneration, Modulation and Effect Balance.
?Separate Program Up and Down footswitches may be used for instant effect selection, live or in the studio.
?5 digit LED Display shows delay time setting and current program.
?HOLD mode provides indefinite repeats without any degradation of audio quality.
?Rear panel includes both Direct output and 'Sum & Difference' outputs, for rich and dramatic quasistereo doubling, flanging and chorus effects.
?Complete rear panel control inputs, including Delay Mod CV input and footswitch jacks for Effect Bypass, Hold, Program Up and Program Down.
?Input and Output jacks provided on both front and rear panels. Both inputs & front panel Output have 3 position Attenuator switches, for easy use with Instruments and in semi -pro or professional recording studios.
FEATURES & FUNCTIONS
This part of the Owners Manual is intended to provide an overview of the features & functions of the SDD -3000. Further information is contained with USING THE SDD-3000 and WHAT IS A DIGITAL DELAY.
1. Input Section
The input section accepts a variety of audio signals from the outside world and adjusts their level for best noise and distortion performance.
The Input Section contains the following:
a)Front & Rear Panel Audio Input Jacks
b)ATTENUATOR Switch
c)Input LEVEL Control
d)HEADROOM LED Meter
a) Audio Input Jacks
Separate input jacks are provided on the front and rear panels, for maximum convenience. If both Inputs are used the front input has priority and the rear input is internally disconnected. The two inputs are otherwise the same.
Input level from either jack is affected by the input ATTENUATOR switch and LEVEL control.
b) ATTENUATOR Switch
This switch selects the basic gain an input impedance of the input stage.
It should be set to a position matching the output level of the equipment feeding the SDD-3000, in order to achieve the best dynamic range. Equipment ranging from electric guitars to professional studio mixers can be used with excellent results.
C) Input LEVEL Control
The input LEVEL control should be used to match the SDD-3000 to the actual output level of the connected equipment, once the proper range has been selected with the ATTENUATOR switch. It is very important to Set the Input level carefully, so as to reduce noise to the lowest possible level while avoiding distortion. The HEADROOM LED meter should be used to establish the proper setting.
d) HEADROOM LED Meter
The HEADROOM LED meter 5 calib rated in 5dB steps from -20dB to 0dB (Green LEDs), with a separate Red LED indicating +3 dB. It is used to establish proper levels and maintain good head room throughout the SDD -3000.
2. Programmer Section
Nine separate effects 'programs , or collections of control settings, may be stored, recalled and changed at will. The stored or 'programmed' settings include the delay time setting and all control settings within the Regeneration and Modulation sections.
The Programmer Section Contains the following:
a)Program & Delay Time Display
b)PROGRAM Button
c)WRITE Button
d)UP & DOWN Buttons
e)PROGRAM UP & DOWN Footswitch jacks. (Rear Panel - ?)
a) Program & Delay Time Display
The left-hand digit of the 5 digit LED display indicates the currently selected Program. Nine different programs may be stored and recalled in addition to the Manual setting. A "0" in the display indicates that the Manual (front panel) made Is selected, while '1' - '9' indicates that one of the nine stored programs is selected.
A decimal point appears in the lower right corner of the Program Display when the currently selected program has been temporarily edited.
The four right-hand digits indicate the current basic Delay time setting. Delay time can range from O millisecond (0.000 second) to 1023 milliseconds (1.023 seconds), in 1 millisecond steps (.001 seconds).
b) PROGRAM Button
The primary function of the PRO-GRAM button is Program section, but it may also be used in conjunction with the WRITE button, to store a new program or permanently edit an existing one.
c) WRITE Button
The WRITE button is used to write new programs and permanently edit existing ones. A Program may be edited in place or copied into a new location, using the UP and DOWN buttons.
d) UP and DOWN Buttons
The primary function of the UP & DOWN buttons is to select a desired Delay time. An ‘autoshift’ function causes the
Delay time to change mo re rapidly the longer an UP or DOWN Button Is depressed, so that |
large changes may be |
made quickly. |
|
The UP & DOWN buttons may also be used for program selection and program copying, in |
conjunction with the |
PROG RAM and WRITE buttons. |
|
e) PROGRAM UP and DOWN Footswitch Jacks (Rear Panel - ?)
Two footswitch jacks are provided to allow remote program selection This capability is especially useful for live performance. Footswitches should be Korg PS-1, S-2, or other momentary, normally open type that switches to ground when depressed.
The PROG UP Footswitch changes to the next higher program when depressed. The PROG DOWN Footswitch changes to the next lower program when depressed.
3. Regeneration Section
The Regeneration section is used to provide repeating echoes, and to alter the tone colour of flanges, chorusing and other effects in a variety of ways.
The Regeneration section includes the following:
a)FEEDBACK Control
b)INV Button
c)HIGH & LOW Filters
d)HOLD Button & Footswitch (Rear Panel - ?)
a) FEEDBACK Control
The FEEDBACK control determines how much (if any) of the signal coming out of the delay line is fed back into the input of the delay line, in order to pro duce a repeating each or add emphasis to a flange. Feedback is also sometimes called 'Regeneration', 'Recirculation', or 'Resonance' (in a flanger).
b) lNV Button
The INV button in the Regeneration section inverts the phase of the feedback loop when it is lit. It is particularly useful with flanging, chorusing, etc,
NOTE: only the feedback loop is affected by this switch, and no change will occur if FEEDBACK Is set to O. There
is a second INV switch in the Output section, which functions differently.
c) HIGH & LOW Filter
The HIGH & LOW filters adjust the frequency response of the Delayed signal. They do not affect the response of the Direct signal. These filters are very useful in tailoring the sound to produce specific effects. These filters have a moderate effect when FEEDBACK is O and a greater effect as the FEEDBACK setting is increased since Feedback causes the signal to be 'recycled' through the delay me a number of times.
d) HOLD Button & Footswitch
The HOLD function provides the ability to infinitely repeat a short musical phrase, with no audio signal degradation whatsoever. When the HOLD button Is depressed, the HOLD LED goes on and the 1 .023 seconds of material that occurred just before the button was depressed is 'looped' internally and repeats until the HOLD button is depressed again. While the HOLD function is in effect, the Delay time and Feedback settings are 'frozen' at the maximum setting and may not be changed. However. the HIGH & LOW Filters, INV button, and all Modulation section functions may still be changed as desired. Note that if they are changed, the effects program you return to when HOLD IS released will also be changed. While HOLD is in operation, you may play new material over the repeating material. This new material will not be repeated along with the other material, since the delay line input is 'locked' to its output in HOLD mode. However, this does allow you to solo aver a short musical phrase.
An optional footswitch (Korg PS-i, etc.) may be connected to the rear panel HOLD jack for remote control of the HOLD function. The HOLD button may still be used with the footswitch connected.
4. Modulation Section
The Modulation Section is used to create the modulations or variations in Delay time which are essential to most effects including flanging, chorus vibrato and doubling.
The Modulation Section includes the following:
a)WAVEFORM Switch
b)INTENSITY Control
c)FREOUENCY Control
d)DELAY MOD Control Input Jack (Rear Panel - ?)
a) WAVEFORM Switch
The WAVEFORM Switch determines which internal control signal is used to modulate or vary the Delay time from its basic setting. There are four possibilities (the DELAY MOD input lets you use almost anything):
1) Triangle Waveform ( ??)
This waveform is used for effects like chorus, vibrato and flanging.
2) Square Wave
This waveform is used for special effects, such as echo with pitch shift.
3) Random ( RND )
The signal produces random changes in delay time, at a rate determined by the FREOUENCY control. It is very useful for realistic doubling effects and various special effects.
4) Envelope ( ENV )
The Envelope Follower causes Delay time to vary according to the amplitude envelope (volume change over time) of the audio input signal. As the volume of the sound increases, Delay time will become shorter. This is useful for Doppler effects and for touch responsive chorus and flanging effects.
b) INTENSITY Control
The INTENSITY control determines the degree (depth) to which Delay time will be affected by the selected Modulation WAVEFORM or external DELAY MOD input signal. At 0, the Delay time will remain constant at the value shown in the LED display. As the control is turned clockwise, the Delay time will begin to change; how it changes depends upon which Modulation source is selected. Modulation always causes the delay time to become shorter than the value shown in the LED Display, by a varying amount. At a control setting of 10, Delay time will vary over a range of 2:1, or from 100% to 50% of the displayed value. Thus, if the display shows a 'value of 1000 milliseconds, the actual Delay time will vary between 500 and 1000 milliseconds in a manner that depends upon the shape and frequency of the Modulation source.
c) FREQUENCY Control
The FREQUENCY control determines the rate or frequency of the TRIANGLE, SQUARE and RND waveforms. FREQUENCY may be varied over a range of 0.1 Hz, (1 cycle ever" 10 seconds) to 15 Hz. (15 cycles per second).
A flashing LED indicates the current FREQUENCY setting.
d) DELAY MOD Control Input Jack (Rear Panel - ? )
The DELAY MOD input allows an external Control Voltage to vary the Delay time setting. This control voltage should be in the range of O - 5 volts; the higher the voltage, the shorter the Delay time. A KORG MS-01 or MS-04 Pedal or other voltage source may be connected. The maximum modulation depth is 2:1, depending upon the INTENSITY setting; with a 5 volt input, Delay time will be 50% of the displayed value (INTENSITY = 10).
All internal modulation is disabled (switched out) when a plug is inserted into the DELAY MOD jack.
5. Effect Section
The Effect Section contains the following:
a) LEVEL BALANCE Control
The LEVEL BALANCE control determines the relative amounts of Direct and Delayed signal in the final audio output mix.
At 0, only the Direct signal will be present. At 10, only the Delayed signal will be present. Settings in between O and 10 will produce a continuously variable blend of the two different signals.
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