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Table of Contents
Summary of Contents for Union Audio LA LE fx
- Page 1 PRODUCT USER GUIDE...
- Page 2 LE FX User Guide Issue 1 Copyright © 2025 Union Audio Limited. All rights reserved To the best of our endeavors, we believe the informa on contained in this user guide to be true and accurate but we do not assume responsibility for inaccuracies or omissions, and reserve the right to make any changes deemed necessary.
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Page 3: Warranty
Union Audio or distributor or appointed service agent. The defec ve unit is to be returned to the place of purchase, an authorised Union Audio distributor or agent with proof of purchase. Please discuss this with the distributor or the agent before shipping. Units returned should be packed in the original carton to avoid transit damage. -
Page 4: Safety Instruc Ons
Safety Instruc ons Please read and retain these instruc ons · Only use the product for the purposes it is intended and heed all warnings. · WARNING - To prevent the risk of fire or electric shock do not use this apparatus near water, or in loca ons where it is likely to be exposed to rain or moisture. - Page 5 Safety Instruc ons · Do not remove any covers, either on the apparatus or the power supply. · Install only in accordance with the manufacturer’s instruc ons. · Always use a power adaptor appropriate to your local mains supply, and ensure the power supply is correctly specified for the local mains voltage.
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Page 6: Table Of Contents
Index Contents Warranty Safety Instruc ons About LE FX Line Drawings Effects Selec on 9-10 Delays Reverb Flanger Phaser Bit Crusher HPF Reverse HPF Stu er Rear Panel Connec ons Aux Send Mode Specifica on Dimensions... -
Page 7: About Le Fx
About LE FX The Union Audio LE FX is a compact, affordable, easy to use, Analogue/DSP based effects unit, designed to perfectly integrate into any DJ setup. The eight effects have been carefully designed to work with all types of electronic dance music, either adding subtly to the mix, or crea ng drama c breakdowns, courtesy of the high level of audio manipula on this apparatus provides. -
Page 9: Effects Selec On
Effects Selec on The LE FX has eight built-in effects which are selected by turning the le side rotary control. The currently selected effect number is indicated by the 3-Bit Binary display as indicated in the diagrams below: FX 0 = Analogue Delay FX 4 = Phaser FX 5 = Bit Crusher FX 1 = BPM Delay... - Page 10 Effects Selec on con nued SEND EFEECTS - The first three effects (Analogue Delay, BPM Delay, and Reverb) are known as “send” effects. These effects add to the “dry” (unaffected) sound. The Wet/ Dry control automa cally changes func onality, so that when fully an clockwise only the Dry signal is heard.
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Page 11: Delays
Delays 0. Analogue Delay: This effect emulates the sound of an analogue delay. It repeats the sound without being locked to a specific rhythm, and when you change the delay me, the pitch of the repeated sound shi s, adding a unique character. The parameter 1 control adjusts the delay ming, and Parameter 2 adjusts the feedback (repeats). -
Page 12: Reverb
Reverb FX 2 = Reverb Reverb : This effect simulates the sound of a classic hall reverb, making your audio sound like it’s in a large space. The Parameter 1 control adjusts the size of the room, while the Parameter 2 adjusts both the Pre-Delay and High Frequency content of the reverb tail. Wet/dry on/off... -
Page 13: Flanger
Flanger FX 3 = Flanger Flanger: This effect creates a harsh metallic, resonant sweeping sound. Parameter 1 controls the LFO sweep frequency, while Parameter 2 controls the depth of the effect. Wet dry on/off : The Wet/Dry control adjusts the balance between the dry signal and the effected sound. -
Page 14: Phaser
Phaser FX 4 = Phaser Phaser: This effect creates a smooth, filtered sweeping sound. Parameter 1 control adjusts the filter sweep speed, while the Parameter 2 changes the filter depth, affec ng how strong the effect is. Wet dry on/off : The Wet/Dry control adjusts the balance between the dry signal and the effected sound. -
Page 15: Bit Crusher
Bit Crusher FX 5 = Bit Crusher Bit Crusher: This effect simulates digital distor on, giving your audio a gri y, lo-fi sound. The Parameter 1 controls the bit depth, while Parameter 2 varies the dry/wet ra o. Wet dry on/off : The Wet/Dry control adjusts the balance between the dry signal and the effected sound. -
Page 16: Hpf Reverse
HPF Reverse FX 6 = HPF Reverse HPF Reverse: This is a unique effect that combines a High-Pass Filter (HPF) with sampler that reverses one beat of the audio. The Parameter 1 controls the cut-off frequency of the filter, while Parameter 2 mixes the filtered audio with the reverse sample. If Parameter is fully clockwise only the reverse sample will be heard. -
Page 17: Hpf Stu Er
HPF Stu er FX 7 = HPF Stu er HPF Stu er: This effect combines a High-Pass Filter (HPF) with sampler that repeats one beat of the audio. The Parameter 1 controls the cut-off frequency of the filter, while Parameter 2 mixes the dry audio with the one-beat sample. If Parameter 2 is fully clockwise only the repeated sample will be heard. -
Page 18: Rear Panel Connec Ons
Rear Panel Connec ons XLR IN/OUT – For best signal quality use the balanced XLR connec ons to interface the LE FX between your mixer and main Amplifier Connec ons are: Pin1 = Ground, Pin 2 = + Hot, Pin 3 = - Cold INSERT –... -
Page 19: Aux Send Mode
AUX Send Mode The LE FX has been primarily designed as a stand alone effects unit with all the controls needed incorporated into the front panel. However, you can also use the LE FX with your mixer’s Aux Send/Return system. For this to work properly you will need to set the LE FX into “SEND MODE”... -
Page 20: Specifica On
Specifica on Distor on plus Noise (THD+N) un-weighted 0dBu, 20Hz to 20kHz 0.005% Frequency Response FX by-passed +/-0dB 20Hz - 30kHz Noise 22Hz to 22kHz Un-Weighted FX bypassed <-80dBu Maximum Output Level Mix Out 0.5% THD +20dBu Impedance Inputs 10K OHMS Output 100 OHMS Headphone Amplifier... -
Page 21: Dimensions
Dimensions LE FX Height 81.5mm Width 210mm Depth 72mm Weight Packed Dimensions Size L x W x H 29cm x 19cm x 15cm Weight 1.7kg (3.75lb)
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