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The xfilter is a true linked stereo equalizer with the heart and soul of our flagship EQ, the museq. It gives you the expensive sound of an all class-A equalizer in a surprisingly affordable package, with a precise stereo image based on computer-selected, stepped pots and low tolerance film caps.

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Sounds Sweet

"The xfilter sounds sweet (with a Class-A quality), transparent (with no artifacts) and quite versatile for an 'only 4 band' equalizer. Crosstalk channel to channel measures EXCELLENT. I'm sure that degree of stereo separation across the audible spectrum enhances its performance.

It also seems to enhance the stereo space, so the distortion is 'just right'. The versatility of combining the low cut with bass boost or cut or the high cut with high frequency boost or cut is amazing. You can get any shape out of that from gentle to very steep. Well done! I'm very happy."

Bob Katz | Mastering Engineer | Longwood

Massage Needed?

The xfilter is absolutely serious about flexibility. It offers high and low shelf bands which can be switched into high and low cut filters with resonance, two mid peak filters with wide and narrow Q, plus additional passive LC stages with shielded coils for a glorious top end.

True Stereo Operation

As one of the few exceptions in the market, the xfilter processes both of its channels with just one set of controllers – a true stereo linked EQ.

Resonance High & Low Cut Filters

The shelving filters can be switched into high and low cut filters with an additional resonance peak. Not ordinary, but extremely useful.

Switchable Filter Quality

The quality of the peak filters can be switched from a wide to a narrow Q factor, which remains independent from the setting of the gain controller.

Additional Passive High-Band

The beautiful sheen only passive filters can deliver... the xfilter has it all. An additional LC filter with shielded coils gives you the 'Passive Massage'.

Stepped Controllers

All potentiometers of the xfilter have 41 steps, which is a great help in recalling your previous sessions fast and precisely.

Computer-Selected Potentiometers

Every single dual and quad layer pot we buy is measured with custom computer routines, and only the lowest tolerance ones go into production.

Special Low Tolerance Capacitors

The special series of film caps used for the xfilter performs twice as good as the industry standard in terms of component tolerance.

Ground Layer Shield

One of the four layers of both PCBs is a full copper plane which helps to reduce interferences caused by electric fields.

100% Discrete Class-A

Discrete input, output and mix stages plus the complete audio path running in class-A mode create an exceptionally transparent, wide and open sounding EQ.

Technical Data

If you are interested in learning more about typical measurements and technical specifications of the xfilter, this is the right place to check.

Love it!

“What a fantastic piece of equipment the xfilter is – I absolutely love it!”

Stephen Marsh | Marsh Mastering | Los Angeles

"30th Annual Technical Excellence and Creativity Awards – elysia xfilter nominated for outstanding technical achievement in the category of signal processing hardware.”

NAMM Foundation | TEC Awards 2014

With its exceptionally open sound, straight transient projection and solid punch, the xfilter is the perfect match for your xpressor – or any other piece of delicious outboard gear!