EFX12 Programable 24-bit  Lexicon® effects. - Image

Programable 24-bit Lexicon® effects.

Dedicated FX bus featuring Industry standard reverbs and delay. The effects engine features 32 presets that are storable and recallable.

EFX12 Gold-plated XLR connectors. - Image

Gold-plated XLR connectors.

Proffesional connectivity with the highest possible conductivity. Gold-plated connectors insures the best possible sound quality accross the console.

EFX12 Inserts on every mono input. - Image

Inserts on every mono input.

Inserts on every input assures maximum compatibility with outboard audio processors.

EFX12 Soundcraft Mic Pres - Image

Soundcraft Mic Pres

Illustrious Soundcraft sound thanks to the GB30 mic pre.

EFX12 Peak meters per channel. - Image

Peak meters per channel.

LED peak meters per channel allows instant access to any overloadng channels at a single glance.

Specs & Downloads

Item# E535.100000US


Dedicated FX bus featuring Industry standard reverbs and delay

The emphasis with the Soundcraft EFX is very firmly on build quality and audio performance, with an easy to understand control surface in line with the Soundcraft professional range. The Soundcraft EFX uses the highly-transparent GB30 Mic amp designed by Graham Blythe. The Soundcraft EFX offers a configurable aux send, XLR and ¼" metal jack connector sockets, RCA phono inputs and outputs, 3-band EQ, inserts, ten-segment LED output metering and a headphone output. The Effects section fits neatly into the mixers compact framework with an effects send on each channel. There are 32 effects to choose from with a tap tempo function, 3 effects parameter controls and a user effects setting store facility. An effects channel level clip LED and Mute function gives the user even more flexibility. The Soundcraft EFX will find itself in many applications including live music, recording, houses of worship and multi-speaker installations.

General Specifications

Power Consumption

Audio Specifications

Frequency Response
Mic input to line output
Mic sensitivity
-126.5dBu (150 Ohm source)
Mic Input
+15dBu max
Line Input
+30dBu max
Stereo Inputs
+30dBu max
Mix Output
+20dBu max
Mic Input Impedence
2 kOhms
Line Input Impedence
10 kOhms
Stereo Input Impedence
65 kOhms (stereo), 35kOhms (mono)
EQ (Mono inputs) HF:
12Hz, +/-15dBu
EQ (Mono inputs) MF:
(swept) 150Hz - 3.5Khz, +/-15dBu, Q=0.8
EQ (Mono inputs) LF:
80Hz, +/-5dBu
EQ (Stereo inputs) HF:
12Hz, +/-15dBu
EQ (Stereo inputs) MF:
720Hz, +/-15dBu
EQ (Stereo inputs) LF:
80Hz, +/-15dBu


17.0 in (432 mm)
3.6 in (91 mm)
14.3 in (362 mm)
12.8 lb (5.8 kg)

What's in The Box?

  • 1 x EFX12
  • 1 x IEC power cable
  • 1 x User Guide
  • 1 x Rack mounting kit

Documents & Downloads

Reviews and Q&A

Customer Reviews

Product Q&A

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