ErgoLab M120S - Stealth Chair

Sale price$ 724.00

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ErgoLab M120S - Stealth Chair


ErgoLab M120S - Stealth Chair

The revolutionary Stealthℕ chair was designed for professional music, lighting, and video engineers who sit at the height of a regular desk, table or console. Specifically produced in a non-reflecting Midnight Black color, the Stealth is perfect for FOH or side stage locations, as it will not reflect spotlight or other light sources.  It was designed with the advanced mechanics and materials to perform in a manner that actually improves the health of a music engineer's back.  The patented ZenWave motion provides unbinding, stress-free support as the music engineer leans forward in a natural position, and protects the lower back from further injury.  Additionally, the scientifically designed backrest moves with the music engineer to massage the lumbar area of the spine, which increases blood flow and nutrients to the lower back muscles and intervertebral discs.



A traditional chair creates unhealthy pressure points from the hip bones, the tailbone and the legs which increase as you lean forward to work. The virtu chair's support system rolls with you as you move back and forth, providing improved support without out any harsh pressure on your body,
The unique flexing properties of the high-strength fiber-reinforced frame, combined with the precise variable tensioning of the mesh support system, allows weight and its corresponding pressure points to be optimally dispersed regardless of the position of the body.


  • Dimensions: Width 18.5" x Depth 16.75"
  • Floor to Seat Height:

                    Studio Model:  19.5" - 25"

                    Touring Model:   22.5" - 30"

  • Weight: 57 lbsColor: Midnight with black arms
  • Non-Reflective




People are different. Not a profound observation we admit, but one that most chair manufacturers continually overlook. At ErgoLab we've embraced this idea by designing each of our ergonomically correct chairs to not only fit your body, but to specifically perform in a manner that is suitable for your demanding work environment.

Sit in a ErgoLab chair for any length of time and you'll quickly realize that it is like no other chair you have sat in before. That's because we design each of our ergonomically correct chairs to support a specific combination of physical attributes and professional responsibilities.
ErgoLab has been an industry leader in the design and manufacturing of ergonomically correct chairs. Utilizing the highest quality materials and craftsmanship, ErgoLab manufactures a wide variety of styles for professionals across multiple industries.

Our exclusive, ergonomically correct designs provide unparalleled support to professionals like yourself. Support that promotes proper posture during both resting and working activities, helps minimize fatigue, reduces chronic back, neck, and arm pain and increases circulation to the legs. All of which help you perform at your best.

Almost 40 years ago, ergonomic researchers determined that the load placed on the intervertebral discs in the lower back increased over 40% when a person went from a standing position to an upright sitting position.  As someone begins to move into a sitting position, they raise their thigh into a position where the backside of the knee is at a 90 degree angle, thereby forcing the pelvis to rotate backwards and turn the tailbone under. This positioning of the pelvis, relative to the spine, starts stacking the intervertabral discs in a manner which places increased pressure on the discs, the nerves which radiate from the spinal cord outward to the lower part of the body, and the connective tissues in the lower back.  This increased pressure has a significant potential to lead to cumulative trauma disorder, more commonly referred to as “back pain."

Using patented technology, the designers of these revolutionary chairs were able to design a conventional looking task chair which allows the user to adjust the seat pan with enough downward slope to keep the lordosis curve in the lower back.  Combining a seat shell which pivots as the user leans forward, with a convex shaped, specially tensioned mesh surface, the Stealth allows the user to eliminate the harmful loading of the intervertabral discs in both the active working position and the reclining passive or resting position.  

This new technology also equalizes pressure from the seat surface, thereby eliminating uncomfortable, unhealthy pressure points under the thighs, the tailbone and the hips as the user leans forward to access their work area.

Another beneficial feature of these chairs is its floating, lumbar shaped backrest. While most common backrests are designed with a concave shape, the backrest is shaped to exactly match the convex lumbar curve of the lower back.  When this unique shape is combined with a spring loaded, floating backrest mechanism, the backrest “floats” with the user's movements as they lean forward and backward.  The floating motion's constant rolling up and down the user's back actually massages the muscles to increase blood flow and increase hydration of the intervertabral discs.  This massaging action and disc hydration benefits the user by keeping their back muscles refreshed, even during extended work sessions. Unlike any other chair in the world, these models can be used in a traditional upright seated position or in a forward tilted declining position.   So, for the first time in human existence, there is a better, healthier way to sit.

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