Elysia Xmax Qube

Control low-end weight, central detail and stereo space together

The Elysia Xmax Qube is a stereo analogue bus processor combining compression, Mid/Side processing, tonal shaping and soft clipping. It gives you separate access to the low-frequency centre, the rest of the Mid signal and the Side information, helping you adjust dynamics and spatial balance within one device.

The Qube version places the stereo processor in a powered desktop enclosure with balanced XLR and TRS connections. It is ready for standalone analogue operation without a separate 500-series chassis.

Understand what its three bands actually do

Xmax first converts the incoming stereo signal into Mid and Side. The Mid represents the sum of left and right; the Side represents their difference. The Mid is then divided into Low and Mid bands, each with its own compressor, while a third compressor handles the Side.

This is not a conventional low/mid/high multiband split. It lets you work on bass in the central image separately from the higher central content and the stereo difference information. On a mix, that can help you organise the relationship between the rhythm section, lead elements and ambience.

Set the boundary for low-end control

The variable crossover moves the division between the Low and Mid bands from 40 Hz to 470 Hz. A lower setting concentrates the Low band on deeper bass; a higher setting includes more upper-bass and low-mid material.

Choose that boundary while listening to the kick and bass together. If the lower part of a synth or guitar arrangement is also driving the Low band, changing the crossover can be more effective than simply applying more compression. The separate gain controls then let you rebalance the bands after processing.

Coordinate the compression with VariLink

Independent thresholds establish how much each band responds. VariLink progressively couples the compression, moving from greater independence towards a more unified response. It gives you a way to balance selective control against the feeling of the whole bus moving together.

Start with the bands responding modestly, then compare different amounts of linking. If separate compression begins to make the image or tonal balance feel restless, a more coordinated response may work better. If one region needs attention without affecting the rest, greater independence can be useful.

Choose the amount of punch and recovery

A shared release control adjusts recovery across the three compressors. Punch switches to a higher compression ratio for a firmer response, while the attack behaviour includes Auto Fast for larger transient events.

On drums, compare how the snare returns after each hit and how much room sound comes forward. On a complete mix, listen to sustained instruments and vocal phrases as well as the rhythm. A setting that adds excitement to a short loop may feel too busy across an entire song.

Shape width while concentrating the bass

Side gain changes the level of the difference information and can alter the apparent width of a stereo source. The Lowmo function high-pass filters that Side signal below 150 Hz, reducing low-frequency stereo information to bring the bottom end towards the centre.

This is useful with wide synths, room recordings and effects-heavy arrangements. It gives you a way to assess spaciousness and low-end focus separately. Check the result in mono and listen for changes in ambience as well as the stronger central bass image.

Finish the balance with Tone and soft clipping

The Tone control provides a high-shelf adjustment for a brighter or smoother overall balance. The soft clipper then offers a separate way to round short peaks after the signal has been decoded back to stereo. Dedicated metering shows compression and clipping activity.

Soft clipping can help manage peaks before conversion, but the final output level still needs to suit your interface. Start with small amounts and compare at similar listening levels. The aim might be gentle bus cohesion, more assertive drums or a denser stem; each deserves its own decision about how much peak shaping to apply.

Bus processing within arm's reach

The compact enclosure works well beside an audio interface or in a portable mixing setup. It gives you the same core approach to Low, Mid and Side processing in a format that can move between sessions. Use stereo line outputs and returns to integrate it with your DAW.