behringer FOUR LFO Eurorack Module User Guide
- August 29, 2024
- Behringer
Table of Contents
Quick Start Guide FOUR LFO
Quad LFO with Assignable Waveforms for Eurorack
Safety Instruction
- Please read and follow all instructions.
- Keep the apparatus away from water, except for outdoor products.
- Clean only with a dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat.
- Use only attachments/ accessories specified by the manufacturer.
- Use only specified carts, stands, tripods brackets, or tables. Use caution to prevented-over when moving the cart/apparatus combination.
- Avoid installing in confined spaces like bookcases.
- Do not place near naked flame sources, such aslighted candles.
- Operating temperature range 5° to 45°C (41° to 113°F)
LEGAL DISCLAIMER
Music Tribe accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph, or statement contained herein. Technical specifications, appearances and other information are subject to change without notice. All trademarks are the property of their respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, Behringer, Bugera, Aston Microphones and Coolaudio are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music Tribe Global Brands Ltd. 2024 All rights reserved.
LIMITED WARRANTY
For the applicable warranty terms and conditions and additional information regarding Music Tribe’s Limited Warranty, please see complete details online at community.musictribe.com/support.
FOUR LFO Controls
Controls
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FADER 1 – this fader has two functions: in free-running mode it sets the frequency for LFO 1; otherwise it acts as a master fader for the other three faders to reference.
-
FADER 2 – in free-running mode this acts as frequency control for LFO 2; otherwise it acts as an offset against the master for LFO 2.
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FADER 3 – as fader 2 but for LFO 3.
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FADER 4 – as fader 2 but for LFO 4.
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FREE LED – when this LED is lit the FOUR LFO is in free-running mode.
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MODE – use this switch to select the action for sockets 16. In RESET mode a gate applied to the socket(s) will cause the waveform(s) of the LFO(s) to reset; in SYNC mode the LFO(s) will sync to a clock sent to the socket(s).
-
TOGGLE – use this button to switch between:
• Free-running, where the four LFOs work independently.
• Quad, where LFOs 2 – 4 are slaved to LFO 1 but are 90°, 180°and 270° out of phase respectively. Faders 2-4 and sockets 10-12 control the amplitude of LFOs 2-4.
• Phase, where faders 2-4 set the phase of LFOs 2-4 against LFO 1. Sockets 10-12 allow further control of shif t from external CVs.
• Divide, where faders 2-4 set divisions of LFO 1’s frequency for LFOs 2-4. Sockets 10-12 allow further CV control. -
ASSIGN – sets the waveform that will be output from sockets 18. Choose between sawtooth, ramp, triangle and trapezoid. This is a global setting which will affect all four LFOs.
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FREQ – use this socket to control the frequency of LFO 1 from an external CV source, in the range -5 V to +5 V.
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(11), (12) – FRQ/PH/DIV – use these sockets to allow external CV control of LFOs 2-4 according to whichever mode the FOUR LFO is in. range in all modes is -5 V to +5 V.
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QUAD LED – this LED is lit when the FOUR LFO is in Quad mode.
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PHASE LED – this LED is lit when the FOUR LFO is in Phase mode.
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DIVIDE LED – this LED is lit when the FOUR LFO is in Divide mode.
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RESET/SYNC 1 – a gate or clock applied to this socket causes different actions according to mode:
• In SYNC mode it will synchronize LFO 1 to the external clock.
• In RESET mode when the LFOs are free-running it will reset the waveform cycle of LFO 1.
• In RESET mode when the LFOs are in QUAD, PHASE or DIVIDE it will reset the waveform cycles of all four LFOs. -
RESET/SYNC 2 – a gate or clock applied to this socket causes different actions according to mode:
• In SYNC mode it will synchronize LFO 2 to the external clock.
• In RESET mode when the LFOs are free-running it will reset the waveform cycle of LFO 2.
• In RESET mode when the LFOs are in QUAD, PHASE or DIVIDE it will pause all four LFOs. -
ESET/SYNC 3 – a gate or clock applied to this socket causes different actions according to mode:
• In SYNC mode it will synchronize LFO 3 to the external clock.
• In RESET mode when the LFOs are free-running it will reset the waveform cycle of LFO 3.
• In RESET mode when the LFOs are in QUAD, PHASE or DIVIDE it will reverse all four LFOs. -
RESET/SYNC 4 – a gate or clock applied to this socket causes different actions according to mode:
• In SYNC mode it will synchronize LFO 4 to the external clock.
• In RESET mode when the LFOs are free-running it will reset the waveform cycle of LFO 4.
• In RESET mode when the LFOs are in QUAD, PHASE or DIVIDE it will shift the assignable waveform to the next option on all four LFOs, regardless of the setting of switch 8. The waveform selected by switch 8 will be selected again if the mode is changed. -
SINE – sine wave outputs for each LFO.
-
ASSIGN – assignable waveform outputs for each LFO, according to where switch 8 is set.
-
SQUARE – square wave outputs for each LFO.
PRECISION
Pressing and holding button 7 puts the FOUR LFO into precision mode to allow precise adjustment. The LED for the current mode will flash, and the faders will make fine adjustments around the centre point. When exiting precision mode the faders will not necessarily indicate the current setting, so the relevant LED will continue to flash to show this.
FIRMWARE UPDATE
On the edge of the circuit board next to the mode switch (6) there is a micro
USB socket for updating the FOUR LED’s firmware, using the SynthTribe
application.
HINTS AND TIPS
- Use the output of one LFO to modulate the selected parameter of another. Or cascade your modulation.
- In free-running mode use a square wave from one LFO to reset another.
Power Connection
The module comes with the required power cable for connecting to a standard Eurorack power supply system. Follow these steps to connect power to the module. It is easier to make these connections before the module has been mounted into a rack case.
- Turn the power supply or rack case power off and disconnect the power cable.
- Insert the 16-pin connector on the power cable into the socket on the power supply or rack case. The connector has a tab that will align with the gap in the socket, so it cannot be inserted incorrectly. If the power supply does not have a keyed socket, be sure to orient pin 1 (-12 V) with the red stripe on the cable.
- Insert the 10-pin connector into the socket on the back of the module. The connector has a tab that will align with the socket for correct orientation.
- After both ends of the power cable have been securely attached, you may mount the module in a case and turn on the power supply.
Installation
The necessary screws are included with the module for mounting in a Eurorack case. Connect the power cable before mounting. Depending on the rack case, there may be a series of fixed holes spaced 2 HP apart along the length of the case, or a track that allows individual threaded plates to slide along the length of the case. The free-moving threaded plates allow precise positioning of the module, but each plate should be positioned in the approximate relation to the mounting holes in your module before attaching the screws. Hold the module against the Eurorack rails so that each of the mounting holes are aligned with a threaded rail or threaded plate. Attach the screws part way to start, which will allow small adjustments to the positioning while you get them all aligned. After the final position has been established, tighten the screws down.
Specifications
Inputs
Inputs
CV in|
Type| 4 x 3.5 mm TS jacks, DC coupled
Impedance| >1 MO, unbalanced
Max input level| 10 V p-p
Reset/Sync In|
Type| 4 x 3.5 mm TS jack, DC coupled
Impedance| >1 MO, unbalanced
Max input level| 10 V p-p
Outputs
Sine Out|
Type| 4 x 3.5 mm TS jack, DC coupled
Impedance| >1 MO, unbalanced
Max output level| 10 V p-p
Assign Out|
Type| 4 x 3.5 mm TS jack, DC coupled
Impedance| >1 MO, unbalanced
Max output level| 10 V p-p
Square Out|
Type| 4 x 3.5 mm TS jack, DC coupled
Impedance| >1 MO, unbalanced
Max output level| 10 V p-p
Controls
Sliders| 4 x function attenuator
Switches| Mode (Reset/Sync) /Assign (ramp, saw, triangle, trapezoid)
Button| Function (Free, Quad, Phase, Divide)
LED| Function (Free, Quad, Phase, Divide)
Power
Power supply| Eurorack
Current draw| 95 mA (+12 V) and 69 mA (-12 V)
Physical
Dimensions| 71.12 x 128.5 x 32.6 mm (2.80 x 5.05 x 1.28″)
Rack units| 14 HP
Weight| 0.14 kg (0.31 Ibs)
FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE INFORMATION
Behringer
FOUR LFO
Responsible Party Name:
Music Tribe Commercial NV Inc.
Address: 122 E. 42nd St.1, 8th Floor NY, NY 10168, United States
Email Address: legal@musictribe.com
FOUR LFO
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
This equipment complies with Part 15 of the FCC rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Important information:
Changes or modifications to the equipment not expressly approved by Music
Tribe can void the user’s authority to use the equipment.
**** Hereby, Music Tribe declares that this produc t is in compliance with
Directive 2014/30/EU, Directive 2011/65/EU and Amendment 2015/863/EU,
Directive 2012/19/EU, Regulation 519/2012 REACH SVHC and Directive
1907/2006/EC.
Full text of EU DoC is available at https://community.musictribe.com/ EU
Representative: Music Tribe Brands DK A/S
Address: Gammel Strand 44, DK-1202
København K, Denmark
UK Representative: Music Tribe Brands UK Ltd.
Address: 8th Floor, 20 Farringdon Street
London EC4A 4AB, United Kingdom
Correct disposal of this product:
This symbol indicates that this product must not be disposed of with household
waste, according to the WEEE Directive (2012/19/EU) and your national law.
This product should be taken to a collection center licensed for the recycling
of waste electrical and electronic equipment (EEE).
The mishandling of this type of waste could have a possible negative impact on
the environment and human health due to potentially hazardous substances that
are generally associated with EEE. At the same time, your cooperation in the
correct disposal of this product will contribute to the efficient use of
natural resources. For more information about where you can take your waste
equipment for recycling, please contact your local city office, or your
household waste collection service.
FOUR LFO
Empower Tribe Commercial FZE –
Made in China
CAN ICES–003 (B)/NMB–003 (B)
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>