Elysia Xfilter

From museq's DNA to the Spirit of the "x" Series

The xfilter inherits the sonic core and philosophy of elysia's museq equalization, emphasizing musicality and precision but with a more accessible approach. The idea is clear: to regain a high-end Class-A signature without sacrificing modern studio ergonomics. Within the range, it positions itself as a linked stereo equalizer designed to naturally complement an analog chain, especially alongside a bus compressor, and to bring that "high-end console" finish to your mixes.

An Equalizer Designed for Mix Bus, Mastering, and Quick Decision-Making

If you work in mixing or mastering (or in a hybrid DAW plus analog gear setup), the xfilter targets one primary goal: enabling you to work fast while maintaining razor-sharp precision. Thanks to the detented controls, you can return to a setting without losing time, and the stereo image remains firmly anchored, even during fine adjustments on a main bus.
It's an excellent choice for: thickening a mix without crushing it, reshaping the presence of a stem (drums, guitars, vocals), refining tonal balance before a limiter, or adding high-end brilliance without harshness. Like all analog processing, it integrates with no perceptible latency and encourages working "by ear," with musical rather than surgical decisions.

A Flexible Architecture Designed to Sculpt Without Altering

Class-A Topology: Impact, Depth, and Naturalness

The 100% Class-A topology is at the heart of the xfilter. It contributes to the sensation of substance, relief, and dynamic response that makes a difference on a stereo bus: clearer attacks, firmer lows, and a sense of openness that remains controlled. The goal is not to over-correct but to provide that professional "finish" with the typically elegant elysia character.

True Linked Stereo: The Image Stays Centered

The xfilter is a true linked stereo equalizer: you have 2 channels but only one set of controls. This choice is ideal to secure left/right balance on global processing (mix bus, mastering, stems), avoid unintended shifts, and maintain a stable stereo image even with pronounced settings.

Low and High Bands: Shelf or Resonant Filters, Your Choice

The high and low shelf bands can be switched to resonant high-pass/low-pass filters. This versatility allows you to move from simple tonal balancing to creative cleaning work: lightening an overly dominant low end, controlling extremes without flattening the signal, or adding useful resonance to highlight a key spectral area. These are particularly effective "secret" tools when a mix lacks space but must retain its energy.

Two Parametric Mid Bands with Switchable Q Factor

The two parametric mid filters offer precise sculpting with a switchable filter quality (wide or narrow Q). In practice, this means choosing between gentle, musical corrections (wide Q) or more targeted interventions (narrow Q) to tame harshness, bring out presence, or better anchor an element in a dense mix. This approach makes the xfilter equally comfortable for subtle correction and more assertive shaping.

Additional Passive LC Stage: The "Magic" in the High Spectrum

The xfilter adds a passive LC stage with isolated coils dedicated to enhancing the highs. This type of circuit illuminates the upper spectrum with a majestic sensation while preserving a high-end texture and musicality that is difficult to replicate digitally. Ideal for adding air, definition, and a premium finish without harshness.

Selected Components and Detented Controls: Precision, Recall, Consistency

To guarantee perfect stereo imaging, the xfilter relies on computer-selected film capacitors and special low-tolerance components. Combined with detented potentiometers, these ensure reproducibility of settings and left/right coherence-a key point whenever processing a stereo bus, making client revisions, or chaining multiple tracks in a project.
Finally, the "Made in Germany" manufacturing follows a zero-compromise philosophy: a tool built to last, ready to become a standard in your chain for everyday use.

Technical specifications