How many XLR inputs does the Soundcraft EFX12 have?

The EFX12 features 12 mono channels, each equipped with a high-quality XLR microphone input and a 1/4" line input. Additionally, it has 2 stereo channels for line-level sources.

What effects are included in the Lexicon processor?

The processor includes 32 high-quality presets covering a variety of reverbs, delays, and modulation effects like chorus and tremolo. These are powered by a dedicated 24-bit Lexicon digital engine.

Can the internal effects be adjusted?

Yes, the EFX12 allows users to edit three specific parameters for each effect preset. There is also a dedicated tap tempo button to synchronise delay times with the music.

Does the mixer have phantom power?

Yes, the mixer provides +48V phantom power for use with condenser microphones. It is typically activated via a global switch for all mono channels.

Is the EFX12 rack-mountable?

The EFX12 can be rack-mounted using optional rack ears, though its compact footprint also makes it suitable for desktop use. It occupies a standard width for professional audio racks.

What is the benefit of the GB30 preamplifier?

The GB30 preamp is a high-end design taken from Soundcraft's larger consoles. It offers low-noise performance and high headroom, ensuring audio remains clear even when signal levels are high.

How many auxiliary sends does the EFX12 offer?

It features two aux sends: one is dedicated to the internal Lexicon FX processor, and the other is a configurable auxiliary bus that can be used for stage monitoring or external effects.

Does the EFX12 feature a USB audio interface?

No, the EFX12 is a purely analog mixer and does not include a built-in USB interface. For digital recording, users would need an external audio interface or a different model like the PreSonus StudioLive AR8c.

Are there inserts for external processing?

Yes, the mixer includes TRS insert points on all 12 mono input channels and the main mix outputs. This allows for the connection of external compressors, gates, or equalisers.

What type of EQ is provided on the mono channels?

Each mono channel features a 3-band EQ with a swept mid-frequency control. This allows for more precise filtering compared to fixed-frequency EQs found on basic mixers.

Can the internal FX be bypassed?

Yes, the internal Lexicon effects can be muted using a dedicated button. Users can also connect an external footswitch to the FX Mute jack for hands-free control during performances.

What is the difference between the Soundcraft EFX and EPM series?

The main difference is that the EFX series includes the built-in Lexicon effects processor. The EPM series lacks internal effects, offering a second standard auxiliary send in its place.

Gear article

Soundcraft EFX12 Mixer with Lexicon FX

The Soundcraft EFX12 is a compact 12+2 channel analog mixer designed for live sound, recording, and permanent installations. It combines the architecture of the Soundcraft EPM series with an integrated 24-bit Lexicon effects processor, featuring high-headroom GB30 microphone preamplifiers.

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Background and Design

The Soundcraft EFX12 was developed as a versatile solution for audio professionals requiring a high-quality mixing surface in a portable format. It builds upon the established reputation of the EPM series, sharing the same focus on audio quality and build integrity. The chassis is designed to be durable for touring use while maintaining a clear, intuitive layout suitable for multi-speaker installations and houses of worship.

Central to the design is the inclusion of the GB30 mic preamplifier, which was originally engineered by Graham Blyth for the larger Soundcraft GB series consoles. This ensures a professional level of transparency and headroom in a mixer within this price bracket.

Key Features and Technical Architecture

The EFX12 features 12 mono inputs and 2 stereo inputs, providing a total of 14 input channels. Each mono channel includes:

GB30 Preamps: High-resolution preamplifiers with wide gain range.
Lexicon FX Processor: A built-in 24-bit digital engine providing 32 distinct effect presets.
3-band EQ: Featuring a swept mid-frequency control for precise tonal shaping.
Auxiliary Sends: One dedicated FX send and one configurable auxiliary send for monitoring or external processing.

The mixer utilizes 60mm high-quality faders and features TRS inserts on all mono channels and the mix output, allowing for the integration of external outboard gear like compressors or gates.

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Lexicon Effects Processing

The standout feature of the EFX series is the integration of genuine Lexicon processing. Unlike many budget mixers that use generic digital effects, the EFX12 employs the same processor found in dedicated Lexicon outboard units. Users can choose from 32 effects, including various reverbs, delays, and choruses. The effects section includes a tap tempo function and three parameter controls, allowing users to store their own variations of the presets.

Sound Character

The EFX12 is characterised by a clean, transparent sound signature typical of British console design. The GB30 preamps provide a neutral canvas with significant headroom, reducing the risk of clipping during dynamic live performances. The EQ section is musical rather than clinical, allowing for smooth adjustments that do not introduce unwanted phase artifacts. The Lexicon effects are noted for their lushness and depth, particularly the reverb algorithms, which help to add professional polish to live vocals.

Target Audience and Applications

The EFX12 is highly suited for:

Live Music: Small to medium-sized bands requiring a reliable analog board with built-in effects.
Houses of Worship: Where ease of use and high-quality vocal reproduction are priorities.
Permanent Installations: The compact footprint makes it ideal for venue racks and multi-speaker setups.
Home Studios: For those who prefer a tactile analog workflow when tracking multiple instruments simultaneously.

Market Comparison

Within the analog mixer market, the Soundcraft EFX12 competes directly with models like the Yamaha MG12 and the Mackie ProFX12v3. While the Yamaha offers a similar number of channels, the EFX12 is often preferred for its Lexicon-branded effects and the quality of its GB30 preamps.

Compared to digital alternatives like the PreSonus StudioLive SE16 or Behringer X AIR XR18, the EFX12 lacks advanced routing and wireless control but offers a more immediate 'one-knob-per-function' interface that many live engineers still prefer for fast adjustments. For smaller requirements, users might look at the Mackie Mix8, though it lacks the professional preamps and FX depth of the EFX series.

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Frequently asked questions

How many XLR inputs does the Soundcraft EFX12 have?: The EFX12 features 12 mono channels, each equipped with a high-quality XLR microphone input and a 1/4" line input. Additionally, it has 2 stereo channels for line-level sources.
What effects are included in the Lexicon processor?: The processor includes 32 high-quality presets covering a variety of reverbs, delays, and modulation effects like chorus and tremolo. These are powered by a dedicated 24-bit Lexicon digital engine.
Can the internal effects be adjusted?: Yes, the EFX12 allows users to edit three specific parameters for each effect preset. There is also a dedicated tap tempo button to synchronise delay times with the music.
Does the mixer have phantom power?: Yes, the mixer provides +48V phantom power for use with condenser microphones. It is typically activated via a global switch for all mono channels.
Is the EFX12 rack-mountable?: The EFX12 can be rack-mounted using optional rack ears, though its compact footprint also makes it suitable for desktop use. It occupies a standard width for professional audio racks.
What is the benefit of the GB30 preamplifier?: The GB30 preamp is a high-end design taken from Soundcraft's larger consoles. It offers low-noise performance and high headroom, ensuring audio remains clear even when signal levels are high.
How many auxiliary sends does the EFX12 offer?: It features two aux sends: one is dedicated to the internal Lexicon FX processor, and the other is a configurable auxiliary bus that can be used for stage monitoring or external effects.
Does the EFX12 feature a USB audio interface?: No, the EFX12 is a purely analog mixer and does not include a built-in USB interface. For digital recording, users would need an external audio interface or a different model like the PreSonus StudioLive AR8c.
Are there inserts for external processing?: Yes, the mixer includes TRS insert points on all 12 mono input channels and the main mix outputs. This allows for the connection of external compressors, gates, or equalisers.
What type of EQ is provided on the mono channels?: Each mono channel features a 3-band EQ with a swept mid-frequency control. This allows for more precise filtering compared to fixed-frequency EQs found on basic mixers.
Can the internal FX be bypassed?: Yes, the internal Lexicon effects can be muted using a dedicated button. Users can also connect an external footswitch to the FX Mute jack for hands-free control during performances.
What is the difference between the Soundcraft EFX and EPM series?: The main difference is that the EFX series includes the built-in Lexicon effects processor. The EPM series lacks internal effects, offering a second standard auxiliary send in its place.