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Behringer 2600 User Manual

Behringer 2600
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8 2600 Quick Start Guide 9
2600 Controls
(EN)
Step 1: Controls
(ES)
Paso 1: Controles
(FR)
Etape 1 : Réglages
(DE)
Schritt 1: Bedienelemente
(PT)
Passo 1: Controles
(IT)
Passo 1: Controlli
Pre-Wired Connections
The panel silk-screening displays the various connections between modules that
have been pre-wired at the factory.
For example, in the VOLTAGE CONTROLLED FILTER/RESONATOR VCF section,
pre-wired connections from Voltage Controlled Oscillators 1, 2 and 3 into the VCF
block are indicated by the labeled boxes at the bottom of the section:
These labeled, pre-wired inputs correspond to sliders on the panel directly above
the label, which enables adjustment of the incoming signal strength.
The input jacks directly above each labeled box disconnects the pre-wired
connection whenever a 3.5 mm connector is placed into the jack,
as indicated by this graphic:
Voltage Controlled Oscillators (VCOs)
The Voltage Controlled Oscillators (VCOs) electronically generate repeating wave
signals, in a variety of waveforms that can then be shaped, combined and ltered
(1) INITIAL OSCILLATOR FREQUENCY – This slider chooses a VCO’s coarse
operating frequency in four ranges for audio (10 Hz, 100 Hz, 1 kHz or 10
kHz) or four sub-audio frequency ranges (.03 Hz, .3 Hz, 3.0 Hz or 30 Hz)
when the VCO operates as a Low Frequency Oscillator (LFO). To choose
between audio and LFO modes, use the AUDIO/LF sliding switch in the
lower left of each VCO.
(2) FINE TUNE – Use this slider to tune the frequency chosen by the INITIAL
OSCILLATOR FREQUENCY slider up or down as needed to nd the precise
frequency you need.
(3) PULSE WIDTH – Use this slider to set a default width for the waveform.
(4) SYNC ON/OFF – Use these sliding switches to lock VCO2 and/or VCO3 with
VCO1 so that the synced oscillators act as a single large oscillator that
follows the frequency of VCO1 to produce complex sounds.
(5) OUTPUTS – These output jacks allow you to send out either audio or
LFO signals from the VCOs via cables with 3.5 mm connectors. The type
of waveform is indicated by the silk-screening associated with the jacks
(sawtooth, pulse, sine, triangle, and so on, depending on the specic VCO
in use). The PULSE outputs can also be used to mix in signals from the
lower LFO section (VCO1), the NOISE GENERATOR section (VCO2), or the
ADSR ENVELOPE GENERATOR (VCO3) to produce a composite output signal.
(6) AUDIO/LF (KYBD ON/OFF) – This sliding switch chooses between audio
and low (LFO) frequencies for adjustment with the INITIAL OSCILLATOR
FREQUENCY, FINE TUNE and PULSE WIDTH sliders. When using the VCO as
a Low Frequency Oscillator, keyboard control is automatically disabled. In
the AUDIO position, keyboard control is enabled.
(7) FM CONTROL – Use these inputs to route in external control voltage
signals via cables with 3.5 mm connectors. Placing a connector into one of
these jacks disconnects the corresponding pre-wired connection indicated
directly below the jack.
(8) PWM – Use this input when you want to route in external control voltages
to control the pulse width in place of the PULSE WIDTH slider.
(8)
(4)
(1)
(2)
(3)
(6)
(5)
(7)
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Behringer 2600 Specifications

General IconGeneral
PolyphonyMonophonic
TypeAnalog Synthesizer
Oscillators3 VCOs
Envelopes2 ADSR Envelopes
LFO1 LFO
ConnectivityMIDI In/Thru, USB
EffectsSpring Reverb
Power SupplyExternal Power Supply

Summary

Controls

Pre-Wired Connections

Details the silk-screened connections pre-wired at the factory between modules.

Voltage Controlled Oscillators (VCOs)

Explains how VCOs electronically generate repeating wave signals in various waveforms.

Voltage Controlled Filter (VCF)/Resonator Section

Initial Filter Frequency

Sets the low-pass filter to four coarse frequency points (10 Hz, 100 Hz, 1 kHz, 10 kHz) for adjustment.

Fine Tune

Fine-tunes the filter cutoff point set by the Initial Filter Frequency slider.

Resonance

Adjusts the filter's Q setting, affecting frequency curve sharpness and ringing.

Filter Mode (4012/4072)

Switches between two classic filter circuits: 4012 (16 Hz max cutoff) and 4072 (11 Hz max cutoff).

VCF Outputs

Routes the VCF output for use in other synthesizer areas via a 3.5 mm connector.

VCF Audio Inputs

Inputs audio signals via 3.5 mm connectors, disabling pre-wired connections when used.

VCF Control Inputs

Accepts external control voltage signals via 3.5 mm connectors, breaking pre-wired connections.

AR/ADSR Envelope Generator Section

AR Attack Time

Controls the shape of the note attack up to an initial fixed peak upon gate/trigger.

AR Release Time

Controls the envelope shape after key release or gate/trigger voltage release.

AR/ADSR Control Inputs

Accepts external control voltage signals via 3.5 mm connectors, breaking pre-wired connections.

AR/ADSR Manual Trigger

Manually produces a gate signal to trigger both AR and ADSR circuits.

AR/ADSR Time Factor

Chooses between three basic time durations for the envelope's overall length.

AR/ADSR Routing Switch

Selects between S/H CLOCK, GATE IN, or TRIG IN for routing to AR/ADSR.

AR Envelope Output

Sends out an additional AR voltage envelope where pre-wired connection is not available.

AR S&H Clock Input

Substitutes an external signal for the Sample & Hold circuit's output.

AR/ADSR Trigger Input

Routes a trigger voltage into the AR and ADSR circuits via a 3.5 mm connector.

AR/ADSR Gate Input

Routes a gate voltage into the AR and ADSR circuits via a 3.5 mm connector.

ADSR Attack Time

Controls note attack shape up to a fixed peak when gate/trigger voltage enters.

ADSR Decay Time

Controls how quickly the envelope drops from the initial fixed peak.

ADSR Sustain Level

Controls the level at which the envelope holds after initial decay.

ADSR Release Time

Controls envelope shape following key release or gate/trigger voltage release.

ADSR Time Factor

Chooses between three basic time durations for the envelope's overall length.

ADSR Envelope Output

Sends out an additional ADSR voltage envelope where pre-wired connection is not available.

Voltage Controlled Amplifier (VCA) Section

Initial Gain

Sets the overall gain for the VCA circuit.

VCA Audio Inputs

Inputs audio signals into the VCA and adjusts gain; disables pre-wired connections.

Control (LIN/EXPL) Inputs

Accepts control voltage signals with linear/exponential response, disabling pre-wired connections.

VCA Output

Routes the final VCA signal out for use where a pre-wired connection is not available.

Mixer/Reverb Section

Mixer Audio Inputs

Inputs audio signals into the Mixer via 3.5 mm connectors, disabling pre-wired connections.

Post-Attenuator Outputs

Outputs signals immediately following attenuator sliders for use elsewhere.

Post-Mixer Output

Breaks Mixer signal connection to PAN slider; routes Mixer output to Reverb circuit.

Pan Slider

Places the summed Mixer signal in the left-right stereo field before final output.

Mixer Output

Additional Mixer output tapping the pre-wired connection feeding the Reverb circuit.

Reverb Output

Taps the right Reverb signal for use elsewhere.

Reverb Left Input

Adds signal to Reverb circuit's left output, summed and panned hard left.

Reverb Right Input

Adds signal to Reverb circuit's right output, summed and panned hard right.

Stereo Outputs (L/R)

Final stereo left-right outputs with 1/4" and 3.5 mm connections for external use.

Keyboard/Portamento Section

Keyboard Control Voltage

Pre-wired connection for keyboard control voltage, used with Low Frequency Oscillator (LFO).

Trigger Out

Sends out a trigger control voltage for use elsewhere via a 3.5 mm connector.

Gate Out

Sends out a gate control voltage via a 3.5 mm connector.

Upper Voice Output

Outputs control voltage based on highest note played in DUO voice mode.

Keyboard CV Output

Sends out the complete keyboard control voltage signal for use elsewhere.

Voice Mode (Mono/Duo)

Determines if the keyboard plays one voice at a time (MONO) or two simultaneously (DUO).

Repeat (Kybd/Off/Auto)

Controls how the keyboard sends trigger signals (repeating, off, or LFO based).

Trigger Mode (Single/Mult)

Generates trigger pulse when a key is played (SINGLE) or every time any key is pressed (MULT).

Portamento Function

Allows one pitch to change gradually to a second pitch at a predetermined rate.

Portamento On/Off Switch

Turns the Portamento function on or off.

Portamento Momentary Button

Temporarily activates the Portamento function for as long as the button is held down.

Portamento Max/Min

Controls the strength of the Portamento effect, from gradual to smooth.

Low Frequency Oscillator (LFO) Section

LFO Connection

Purpose-built LFO primarily for keyboard use, with pre-wired connection to VCO1.

LFO (Saw) Output

Routes a sawtooth LFO signal out for use elsewhere via a 3.5 mm connector.

LFO (Square) Output

Routes a square wave LFO signal out for use elsewhere.

External Vib Input

Routes external LFO signal for blending with delayed LFO sine wave.

LFO (Sine) Delayed Output

Sends a copy of LFO's sine wave output, delayed by VIB DELAY slider.

LFO Speed

Controls the base speed of the LFO oscillation.

Vib Delay

Controls the amount of delay applied to the LFO sine wave.

Vib Depth

Controls the intensity of the vibrato effect created by the delayed LFO sine wave.

Envelope Follower Section

Preamp Input

Routes an external signal into the Preamp via a 3.5 mm connector.

Range (x1000/x100/x10)

Determines the base amount of amplification applied to the input signal.

Gain Slider

Determines how strongly the input signal is amplified.

Preamp Output

Sends out a copy of the Preamp signal for use elsewhere in the synth.

Preamp Input Bypass

Bypasses the Preamp, routing external signal directly to Envelope Follower.

Sensitivity

Controls the sensitivity of the Envelope Follower circuit.

Envelope Follower Output

Routes the final Envelope Follower signal out for use elsewhere via a 3.5 mm connector.

Ring Modulator Section

Ring Modulator Function

Voltage multiplier combining two input signals (VCO1 sawtooth, VCO2 sine) for exotic timbres.

VCO 1 Input

Routes external signal for blending with pre-wired VCO1 sawtooth, gain adjusted by slider.

VCO 2 Input

Routes external signal for blending with pre-wired VCO2 sine wave, gain adjusted by slider.

Audio/DC Switch

Optimizes VCO1 signal path for audio (AUDIO) or control voltage (DC) signals.

Ring Mod Output

Sends out the final, summed Ring Modulator signal for use elsewhere.

Noise Generator Section

Noise Generator Function

Produces adjustable noise signals (white, pink, low frequency) for sound design.

Color Slider

Moves between white noise (WHITE), pink noise (PINK), and low frequency noise (LOW FREQ).

Level Slider

Controls the overall attenuation of the noise signal prior to output.

Noise Generator Output

Sends the final noise signal out for use in the synth where pre-wired connection is not available.

Voltage Processor Section

Voltage Processor Function

Offers three processors for audio/control voltage mixing, inverting, and variable lag.

Mult Connections

Linked parallel connections used as a patch bay to duplicate and combine signals.

Inverter 1 Inputs

Accepts four inputs, summed and inverted; e.g., +10V input becomes -10V.

Inverter 1 -10V Input

Attenuates the input signal by 10 V.

Inverter 1 Keyboard CV Input

Optimized for control voltage signal from a keyboard.

Inverter 2 Inputs

Accepts two signals, summed and inverted for output.

Inverter 2 +10V Input

Boosts the input signal by +10 V.

Lag Processor Function

Responds to voltage changes, slowing them down to cut off treble frequencies.

Envelope Follower Input

Accepts control voltages and audio signals, optimized for Envelope Follower output.

Lag Processor Output

Sends out the final signal from the Lag Processor.

Sample & Hold/Electronic Switch Section

Sample & Hold Function

Takes input signal, converts to stepped output by sampling at intervals.

Noise Generator Input

Interrupts Noise Generator input signal; use to substitute another signal.

Internal Clock Output

Exports the internally generated clock signal for use in other synthesizer parts.

Sample & Hold Output

Sends out the Sample & Hold circuit's final signal for use elsewhere.

External Clock Input

Imports external clock signal to run Sample & Hold; disables internal clock.

Level Slider

Attenuates the input signal before it goes into the Sample & Hold circuit.

Rate Slider

Controls Sample & Hold circuit's measurement frequency, not functional with external clock.

Electronic Switch Function

Bidirectional circuit that alternates signals between inputs and outputs.

Electronic Switch Jacks

Jacks that route signals in and out over cables with 3.5 mm connectors.

Phones/Power

Headphones Jack

Connects headphones (1/8" plugs) and controls output level via knob.

Power Switch

Turns the synthesizer on or off.

Back Panel Controls

LED Brightness Knob

Rotary knob to control the brightness of the LEDs on the front panel.

Interval Footswitch Jack

Connects footswitch to temporarily turn on the interval function in DUO mode.

Portamento Footswitch Jack

Connects footswitch to turn the Portamento function on or off.

MIDI Channel Switches

Four switches to set the MIDI Channel number from 1 to 16.

MIDI In Port

Receives MIDI data from an external source via a 5-pin DIN connector.

MIDI Thru Port

Passes through MIDI data received at the MIDI IN jack to other devices.

USB Port

Connects to a computer via USB type B for MIDI in and out.

DC Input

Connects the supplied 12V DC adapter for power.

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