Xone mixers: analogue architecture, filters and send/return.

There are two reasons a venue installs a Xone rather than another mixer: the sound it produces when pushed, and its place in the DJ’s routine. Neither can be understood by looking at a price list; you need to understand how it is built.

This guide looks inside Allen & Heath’s Xone mixers: their analogue architecture, the filters that made them famous, the send/return effects loop and decisions about EQ and outputs. It finishes with a way to choose a model based on actual use rather than the catalogue.

Xone mixers: what we are talking about

Xone mixers are Allen & Heath’s family of DJ mixers, manufactured in Cornwall and found in clubs since the 1990s. The current range falls into three groups: four-or-more-channel mixers for a complete booth, compact two-channel mixers for home and events, and K-series controllers that work alongside them.

They all share a design decision: the audio signal travels through the equipment in the analogue domain. Line and phono inputs, preamp, EQ and filter work before the output stage, and only what is necessary for the interface or digital mix is converted. That decision explains their headroom and price: carefully built analogue paths cost more than digitising early and correcting afterwards.

The difference between models therefore lies in how many channels you need, whether you want an integrated interface and whether you work with faders or rotary controls, rather than whether they sound like a Xone.

Analogue architecture

Analogue architecture is evident in four specific points found in specifications throughout the range. First are the phono preamps: high gain and low noise, with paired phono and line inputs for switching from turntable to player without level jumps. Second is the summing stage: the mix is built in analogue, with a summing stage tuned to preserve deep bass and open highs. Third is the EQ: the range offers total-kill isolator EQ, letting you remove a band completely, useful for exchanging bass between tracks. Fourth are the outputs: balanced XLR master, independent booth output and, on several models, a separate recording output.

For someone coming from software, the practical consequence is gain staging. In digital, you correct afterwards; on a mixer like this, the level must enter correctly or everything following it sounds worse. Raise trim until the meters show a level with headroom, leave the channel fader where you will work and use the master for overall level. The details are in Gain staging: input and output levels and, for mixer anatomy, Anatomy of a DJ mixer.

Filters and the VCF

The filter is the range’s sonic signature. It uses a VCF, or voltage-controlled filter, offering high-pass, low-pass and band-pass modes on current models, with two controls: cutoff and resonance. Resonance turns a gentle sweep into a pronounced hit: raising it emphasises the cutoff frequency and adds the slightly saturated character associated with the brand.

There are two ways to use it. As a transition tool, cut a track’s highs to make room for another, with low resonance. As an effect, raise resonance to build tension before a drop. Models with four independent filters allow two simultaneous sweeps; those with one filter require choosing its assigned channel.

A common mistake is confusing the filter with EQ. EQ cuts fixed bands; a filter sweeps a variable region and therefore sounds continuous. In practice, they complement one another: EQ for everyday work, filter for the musical phrase.

Send/return and external effects

The send/return loop exists because many interesting effects live outside the mixer. The flow is simple: take a channel’s signal, send it to an external unit and bring it back through a return input, controlling both send and return levels.

Xone mixers offer two variants. X:FX, present on models such as the Xone:43, is a direct loop with per-channel dry/wet mix control. The Xone:96 has two dedicated sends, one with an instrument-level mode for guitar pedals, plus a master insert for external processors. Recent compact models also have a jack Master Insert serving the same purpose at the overall output.

The decision is about chain order. Internal filter and EQ remain active; sends go to units you want to hear separately, such as a delay box or bus compressor; the master insert is reserved for the final stage. If an external effect is not on or returns no signal, check the send level before blaming the unit: that is this circuit’s most common fault.

EQ, headphones and outputs

Outputs determine whether the mixer fits your venue. A balanced XLR master is essential for a long PA run; an independent booth output lets the technician adjust monitoring without changing the audience level; and a recording output lets you capture the set without attaching a computer to the main chain.

Headphone connections also matter more than they seem. Club models have two independent headphone outputs intended for back-to-back use: each DJ hears their own feed without fighting over volume. The crossfader, when present, supports different curves and can sometimes be replaced by a faster-cutting model for scratching.

Finally, check something before buying or accepting an installation: count actual inputs rather than fader channels. A four-channel mixer with two phono inputs cannot accept four turntables. That distinction appears only in the specifications, covered in Booth connections and cabling: XLR, RCA and jack.

Which model for which use

The range can be summarised as follows: Xone:96 for four line channels, a dual interface and two filters; Xone:92 for those prioritising rotary controls and a club presence without an interface; Xone:43 for four clean analogue channels with X:FX and no computer dependency; Xone:24 for small setups with isolator EQ; and Xone:24C for the same analogue path with a USB-C interface, three operating modes and a controller hub.

None is better in the abstract: the number of hands sharing the mixer, the computer’s place in your setup and the amount of external effects you plan to use all change. With that map clear, the next step is the digital layer: interfaces, K-series controllers and how an analogue mixer works alongside a DAW.

Next step

With the analogue side understood, connect the computer without losing it: Interfaces, Xone:K, gain staging and hybrid integration.