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Brand: Stealth Chairs

Height Replacement Lever

Height Replacement Lever

Regular price $10.99 USD
Regular price Sale price $10.99 USD
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Shipping calculated at checkout.

The Stealth Chair Replacement Lever is the perfect solution for maintaining the precision and functionality of your ergonomic seating experience. Designed to fit seamlessly into both adjustment locations on your Stealth Chair, this lever ensures effortless customization of your chair’s height and tilt.

Crafted from durable, high-grade materials, this replacement lever matches the sleek, professional aesthetic of your Stealth Chair while standing up to daily use in demanding environments. Whether you're a sound engineer fine-tuning mixes or a lighting technician perfecting a stage setup, this universal lever restores your chair to peak performance, helping you maintain comfort and focus throughout long sessions.

Upgrade your chair effortlessly with this versatile, easy-to-install replacement part. Compatible with both Stealth Standard and Pro models. Restore control, optimize your posture, and keep your chair performing like new.

Features

Universal Fit: Compatible with both height and tilt adjustment locations on all Stealth Chair models.
Durable Build: Made from high-grade, long-lasting materials designed for daily professional use.
Ergonomic Design: Smooth, precise control for easy chair adjustments, enhancing comfort and posture.
Sleek Aesthetic: Matches the professional and modern design of Stealth Chairs.
Easy Installation: Quick and hassle-free replacement process.

Dimensions

Length: 5.5 inches (14 cm)
Width: 1.2 inches (3 cm)
Handle Thickness: 0.5 inches (1.3 cm)
Compatibility: Designed for Stealth Standard and Pro models.

Who Is This For?

Music and Sound Engineers: Ensures your chair stays in top condition for hours of precise work in the studio.
Lighting Technicians: Provides dependable adjustability during long sessions in control rooms or on location.
Ergonomics Enthusiasts: Perfect for anyone dedicated to maintaining optimal posture and comfort.
Stealth Chair Owners: Ideal for professionals and creatives who rely on the Stealth Chair for daily support and ergonomic health.
Keep your Stealth Chair performing at its best with this reliable replacement lever—tailored for the demands of your industry.

Warranty

Every Stealth Chair is backed by a comprehensive 5-year warranty, ensuring long-lasting durability and performance. We stand behind the quality of our ergonomic design and ZenWave technology, so you can focus on your work with peace of mind. Our warranty covers manufacturing defects, ensuring your chair stays as dependable as the day you purchased it.

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DETAILS

STEALTH CHAIR TECHNOLOGY

Patented engineering that actually improves your back health while you work

WHY TRADITIONAL CHAIRS DESTROY YOUR BACK

! ! !
TRADITIONAL OFFICE CHAIR
40%+ increased disc pressure when sitting vs standing
Pelvis rotates backward stacking discs unnaturally
Pressure points intensify on hips, tailbone, thighs
Static backrest loses contact when leaning forward
Reduced blood flow leads to fatigue and pain
STEALTH CHAIR
Maintains natural lordosis curve in all positions
Active Tilt seat pivots keeping spine aligned forward
Even pressure distribution eliminates pain points
Free-Float backrest moves with you continuously
Increased blood flow reduces fatigue by 60%

The revolutionary Stealth™ chair was designed for professional music, lighting, and video engineers who sit at different heights working at consoles, desks, and control surfaces. Specifically produced in non-reflecting Midnight Black, the Stealth is perfect for FOH or side-stage locations—it won't reflect spotlights or light sources, keeping you invisible while you work your magic.

SEE THE DIFFERENCE IN ACTION

Watch how ZenWave™ motion technology supports your body in real working positions

CRITICAL SPECS & WHY THEY MATTER

MIDNIGHT BLACK NON-REFLECTIVE
Powder-coated finish

Why it matters: Stage lights, camera rigs, and console monitors won't catch reflections from your chair. Critical for FOH positions, broadcast facilities, and side-stage work where even small reflections can distract performers or create visual issues on camera. This isn't about aesthetics—it's about professional invisibility.

HIGH-STRENGTH FIBER-REINFORCED FRAME
Aerospace-grade materials

Why it matters: The same material used in military and aerospace applications. This isn't cheap plastic—it's engineered composite that flexes precisely to distribute weight while supporting up to 350 lbs. The frame's unique flexing properties work with the mesh tensioning to eliminate pressure points. This technology is what makes the ZenWave™ motion possible.

VARIABLE TENSION MESH SYSTEM
Zone-specific engineering

Why it matters: Not all mesh is created equal. The Stealth uses different tension zones across the seat—tighter where you need support, more flexible where you need give. This precise engineering disperses your weight optimally regardless of your body position. Combined with the fiber-reinforced frame, this creates the "floating" sensation that eliminates pressure points completely.

ACTIVE TILT™ SEAT PLATE
Patented pivot mechanism

Why it matters: When you lean forward to work, traditional chairs force your pelvis to rotate backward—stacking your spine unnaturally and crushing your discs. The Active Tilt seat pivots forward with you, maintaining proper pelvic position and natural spine curvature. This single feature prevents the 40%+ disc pressure increase that standard chairs create. You can lean into marathon sessions without cumulative damage.

PATENTED ZENWAVE™ MOTION TECHNOLOGY

The patented ZenWave™ motion provides unbinding, stress-free support as you lean forward naturally, protecting your lower back from further injury. The scientifically designed backrest moves with you to massage the lumbar area of your spine, increasing blood flow and nutrients to lower back muscles and intervertebral discs.

LIKE FLOATING ON WATER

The patented ZenWave™ motion technology allows you to float forward and backward without harmful pressure. Your body's natural movements are supported, not restricted.

ALIGN YOUR SPINE

The Active Tilt™ seat plate pivots smoothly forward and backward to promote proper body alignment, maintaining your natural lordosis curve in all positions.

FEEL SUPPORTED

The "Free-Float" backrest stays with you as you lean forward, giving continuous support. Unlike static backrests that abandon you when you work.

LEVER 1 LEVER 2
EVERYONE IS DIFFERENT

Customize your seat and backrest position with three lever adjustments. Height, tilt angle, and backrest tension—dial in your perfect working position.

BREATHE EASY

Cool breathable mesh prevents perspiration buildup and keeps your clothes looking fresh. No more sweat-soaked shirts during marathon sessions.

MASSAGE & HEALING

The floating backrest actively massages your lumbar region with every movement, increasing blood flow and nutrient delivery to discs and muscles.

PRESSURE DISTRIBUTION: TRADITIONAL VS STEALTH

Traditional Office Chair

Hip Bones 85%
Tailbone 90%
Thighs 75%
Lumbar Support (Leaning Forward) 15%
Disc Compression vs Standing +42%
DANGER ZONE
CUMULATIVE DAMAGE RISK
HIGH
Pain increases with session length

Stealth Chair with ZenWave™

Hip Bones 25%
Tailbone 20%
Thighs 30%
Lumbar Support (Leaning Forward) 95%
Disc Compression vs Standing +8%
SAFE ZONE
CUMULATIVE DAMAGE RISK
LOW
Actually improves with session length

These aren't theoretical numbers. Independent ergonomic studies show that the Stealth Chair reduces pressure points by 70% compared to traditional office chairs, while providing 80% more continuous lumbar support during forward-leaning work positions. The result? You can work longer, feel better, and protect your career from chronic pain.

PERFORMANCE OVER TIME: 16-HOUR SESSION

100%
75%
50%
25%
0%
Stealth Chair Traditional Chair
0h 4h 8h 12h 16h
Session Duration (Hours)
STEALTH CHAIR USERS REPORT:
  • Consistent energy through 16+ hour sessions
  • No back pain during or after work
  • Better focus in final hours of project
  • Reduced fatigue-related mixing errors
  • Can work multiple days without recovery time
TRADITIONAL CHAIR USERS REPORT:
  • Significant fatigue after 6-8 hours
  • Lower back pain starting at hour 4
  • Mental fog in final hours
  • Increased mistakes and revision needs
  • Require full day recovery between sessions

The difference compounds over years. Engineers using Stealth Chairs report 60% less chronic back pain and 70% fewer days lost to injury compared to colleagues using traditional office chairs. Your chair is either extending your career or ending it.

THE CONVEX-SHAPED FLOATING BACKREST

Most backrests are concave—curved inward. This creates pressure points and forces unnatural posture. The Stealth backrest is convex—shaped to exactly match the natural outward curve of your lumbar spine.

Combined with the spring-loaded floating mechanism, the backrest "floats" with your movements as you lean forward and backward. This constant rolling motion actually massages the muscles in your lower back, increasing blood flow and hydrating your intervertebral discs.

The result? Your back muscles stay refreshed even during extended work sessions. Unlike any other chair in the world, Stealth models support you in traditional upright seated position OR forward-tilted declining position. For the first time in human existence, there's a better, healthier way to sit.

CONCAVE (Traditional) Pressure Points CONVEX (Stealth) Even Support Your Spine Traditional Stealth

The convex shape matches your spine's natural curve, eliminating pressure points and providing continuous massage with every movement

MILITARY-GRADE MATERIALS & CONSTRUCTION

FIBER-REINFORCED FRAME

Aerospace-grade composite materials engineered to flex precisely while supporting 350 lbs

CLASS 4 GAS CYLINDER

Industrial-strength hydraulic lift system rated for 100,000+ cycles

PRECISION MESH

Variable-tension zones engineered for optimal pressure distribution

POWDER-COATED BASE

Non-reflective midnight black finish resists chips, scratches, and stage wear

Every component is selected for one reason: longevity under professional use.

We don't cut corners. We don't use cheaper materials. We build chairs that outlast trends, tours, and technology upgrades. That's why we back them with a 5-year warranty—one of the longest in the entire furniture industry.

EXPERIENCE ZENWAVE™ TECHNOLOGY

Patented engineering backed by ergonomic science • 5-year warranty • Lifetime support
The only chair designed for how professionals actually work

Free shipping • 30-day trial • Replacement parts available

"Unlike any other chair in the world, Stealth models can be used in traditional upright seated position or in a forward-tilted declining position. For the first time in human existence, there's a better, healthier way to sit."

ABOUT STEALTH

Stealth ErgoLab

ABOUT STEALTH CHAIRS

Almost 40 years of engineering excellence • Trusted by the world's top studios, tours, and venues

THE PROBLEM EVERY ENGINEER FACES

Here's something they don't teach you in audio school: the wrong chair will end your career faster than bad monitoring.

Almost 40 years ago, ergonomic researchers made a discovery that should have changed everything. When you move from standing to sitting, the load on your intervertebral discs increases by over 40%. And when you lean forward to work—the position every engineer, lighting designer, and FOH tech spends hours in daily—traditional office chairs become torture devices.

"As you raise your thigh to sit, forcing your knee to a 90-degree angle, your pelvis rotates backward and tucks your tailbone under. This positioning stacks your intervertebral discs in a way that creates massive pressure on the discs, the nerves radiating from your spinal cord, and the connective tissues in your lower back. This isn't discomfort—it's cumulative trauma disorder. The kind of chronic back pain that ends careers."

— Ergonomic Research, 1985

Standard office chairs are designed for people who lean back and rest. You don't rest. You work. You lean forward over consoles. You reach for faders. You're locked in position for hours chasing a mix, programming a light show, or dialing in a broadcast feed. Every minute in the wrong chair compounds the damage.

We built Stealth Chairs because there wasn't a better way to sit—until now.

WHO WE ARE

ErgoLab has been an industry leader in ergonomically correct chair design and manufacturing for nearly four decades. We're not a furniture company that stumbled into pro audio—we're ergonomic specialists who understand your unique demands.

People are different. Not profound, but most chair manufacturers overlook this. At ErgoLab, we've embraced it by designing each chair to not only fit your body, but to specifically perform in your demanding work environment.

WHY WE EXIST

Sit in a Stealth Chair for any length of time and you'll realize it's like nothing you've sat in before. That's because we design for a specific combination of physical attributes and professional responsibilities.

Our exclusive designs provide unparalleled support that promotes proper posture during both resting and working activities, minimizes fatigue, reduces chronic back/neck/arm pain, and increases circulation. All of which help you perform at your best.

THE SCIENCE: PATENTED ZENWAVE™ TECHNOLOGY

ZenWave Technology Diagram

Using patented technology, we designed a chair that allows you to maintain the natural lordosis curve in your lower back while leaning forward—something impossible with traditional chairs.

The secret? A seat shell that pivots as you lean forward, combined with a convex-shaped, specially tensioned mesh surface. This eliminates harmful loading of the intervertebral discs in both active working and resting positions.

This technology also equalizes pressure from the seat surface, eliminating uncomfortable pressure points under your thighs, tailbone, and hips as you lean forward. You'll feel like you're floating.

THE FLOATING BACKREST THAT WORKS WITH YOU

While most backrests are designed with a concave shape (which creates pressure points), our backrest is shaped to exactly match the convex lumbar curve of your lower back. Combined with a spring-loaded floating mechanism, the backrest literally moves with you as you lean forward and backward.

Here's what makes this revolutionary:

The floating motion constantly rolls up and down your back, actually massaging the muscles to increase blood flow and hydration of the intervertebral discs. This massaging action keeps your back muscles refreshed even during marathon 16-hour sessions. Your back gets better as the day goes on, not worse.

Unlike any other chair in the world, Stealth models can be used in traditional upright seated position OR in a forward-tilted declining position. For the first time in human existence, there's a better, healthier way to sit.

TRUSTED BY THE INDUSTRY'S BEST

From major recording studios to world tours • From broadcast facilities to festival FOH positions
Stealth Chairs are the choice of professionals who refuse to compromise

40
Years of Engineering Excellence
5
Year Comprehensive Warranty
350
lbs Weight Capacity
Lifetime Replacement Parts

WHERE STEALTH CHAIRS WORK

Stealth Chair at Front of House

A Stealth Pro Chair at front-of-house

🎚️ RECORDING STUDIOS

Tracking, mixing, mastering—anywhere engineers spend hours leaned forward over consoles

🎪 LIVE TOURS & FESTIVALS

FOH, monitor world, lighting control—non-reflective midnight black won't catch stage lights

💡 LIGHTING DESIGN

Side stage, control rooms, anywhere you need height adjustment and mobility

📺 BROADCAST FACILITIES

Video engineering, post-production, control rooms—precision work requires precision seating

🏟️ PERMANENT INSTALLATIONS

Houses of worship, theaters, arenas—anywhere professional audio happens

🎹 MUSIC PERFORMANCE

Studio sessions, rehearsals, live performance—Performer Series stools for instruments

5 YEARS

BUILT TO LAST, DESIGNED TO ENDURE

We don't cut corners. High-strength fiber-reinforced frames—the same material used in aerospace and military applications. Precision-tensioned mesh engineered to maintain its properties through years of daily use. Class 4 gas cylinders. Powder-coated bases. Every component selected for durability, not price.

That's why we back every Stealth Chair with a 5-year comprehensive warranty—one of the longest in the entire furniture industry. Most companies offer 1-2 years. We offer five. Because when you're engineering records that will be heard for decades, your chair should be built to the same standard.

WE ACTUALLY SELL REPLACEMENT PARTS

These chairs last so long, we actually sell replacement parts. Suspension bushings, cylinders, casters, levers, backrests—everything is serviceable and available. While other manufacturers expect you to throw away a $750+ chair when one component fails, we designed Stealth Chairs to be maintained and repaired.

This isn't planned obsolescence. This is engineered longevity.
Buy once, maintain forever.

Available replacement parts include: extra-tall cylinders for lighting positions • TourMax heavy-duty casters for tour life • suspension bushings for wear and tear • paddle arms for added support • executive backrests for reclining • beverage holders • chair glides for stationary positions. Everything you need to keep your chair performing like new.

CUSTOMER SERVICE THAT ACTUALLY CARES

Unlike companies that disappear after the sale, we refurbish our own chairs in-house and provide industry-leading customer support. Got a question at 11 PM before a session? Need a replacement part shipped overnight? Want to upgrade your existing chair?

We're here for you—not just at purchase, but for the life of your chair. When you invest in a Stealth Chair, you're not just buying furniture—you're joining a community of professionals who demand excellence and get real support when they need it.

CONNECT WITH US

We're located in Centennial, Colorado and ready to support you

📍 ADDRESS

7300 S Tucson Way
Centennial, CO 80112

📞 PHONE

(844) 319-7201
Call anytime for support

🕐 HOURS

Monday - Friday
9:00 AM - 5:00 PM MT

EXPERIENCE THE DIFFERENCE

40 years of engineering excellence • 5-year warranty • Lifetime support
Your back will thank you. Your career will thank you.

"From major recording studios to world tours, from broadcast facilities to festival FOH positions—
Stealth Chairs are the choice of professionals who refuse to compromise."

Made for professionals, by professionals. Every Stealth Chair is engineered to support the people who create the soundtrack of our lives.
From the first take to the final master, we've got your back—literally.

SHIPPING

Shipping Varies based on size and location.

Each order is custom upholstered, assembled, and inspected before it leaves our facility in Centennial Colorado.

Most orders are completed within 2 weeks' time and shipped within the USA for a total of 3-4 weeks turnaround.

There are times when an order may be placed on backorder and you will be notified by the email and or phone number you provide. 

For shipping, we commonly use UPS and have a standard rate of $99 to cover all costs of shipping in the USA. This allows us to ship daily from our facility to you in a timely manner and update your order accordingly. 

On some larger orders, it may require custom freight or pallet-based shipping. We will work with our vendors to find the best available rate on shipping and or split an order to get it to you in a timely fashion and or reduce cost. 

Once you place an order with Stealth Chairs and you are working with a dealer they will be notified that the order is confirmed and or shipping to make things easier for order transparency. If the order is shipping to the dealer you will still be notified of the order placement and or shipping by email on the order placed. If you would like additional notifications we can send them as well to the emails you provide and or you update VIA your crown seating account. 

 

If You are outside the USA

Please Check with https://www.universal-distribution.co.uk/stealth Shipping will be calculated at check out and we are not responsible for any tariffs involved. You will be notified by the shipping company of these tariffs you are responsible for. We do our best to make sure you get the best rate by DHL, UPS, and or other companies to complete the shipping without additional costs. An average order with custom upholstery outside the USA is about 6-8 Weeks before you receive it. 

 

Back-ordered based on materials

We use the best upholstery, materials, and components to create a seating experience that will last a lifetime. In doing this sometimes certain parts may be back-ordered due to volume, waiting on shipments, and or customized options provided for you. You will always be notified provided by the email on file and or a phone call from a representative to let you know of the new lead time and or options to change the order to expedite delivery. 

Working with a dealer

When working with a dealer there may be times when your order is not updated by us. This is due to the dealer arranging the best delivery window and or notification has been paused to await other items from additional vendors, parts, and or items that you have placed on a larger order. You will be notified by your dealer on when or where these orders are from Stealth Chairs and if there is a delay the dealer can notify us or you of the expected time window based on the order. 

How does the Stealth Chair come and or is it assembled?

Each stool may be dissembled based on the best method of shipping. The stool will be detached from the base and cylinder to make shipping easy. Each stool takes an average of 5-15 minutes to assemble out of the box. We do offer fully assembled stools based on your order for additional costs and shipping. Please reach out after you place the order to have it fully assembled and you will receive a separate invoice for this service. 

Has my order shipped?

 Click the "My Account / Order Status" link at the top right-hand side of our site to check the status of your order. How do I change quantities or cancel an item in my order? 

Click the "My Account / Order Status" link at the top right-hand side of our site to view orders you have placed. Then click the "Change quantities / cancel orders" link to find and edit your order.

Please note that once an order has begun processing or has shipped, the order is no longer editable.

How do I track my order? Click the "My Account / Order Status" link at the top right hand side of our site to track your order.

My order never arrived. Click the "My Account / Order Status" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.

An item is missing from my shipment. Click the "My Account / Order Status" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.

My product is missing parts. Click the "My Account / Order Status" link at the top right-hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If your order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.

When will my backorder arrive? Backordered items are those which our suppliers are unable to predict when they will have more in stock, but as soon as they do, we will be able to ship the item to you.

International ShippingDo you ship to my country?Please create an account by clicking the "My Account / Order Status" link at the top right hand side of our site. During signup, we'll ask for your shipping address details including country. If your country is not in the dropdown menu of available countries, unfortunately, we cannot ship to your country at this time.What are my payment choices?During the checkout process, you may choose any of our current payment options and continue to place your order. Please note that we will not ship your order until we receive payment from you.When will my order ship and what are my shipping charges?Shipping is automatically calculated prior to submit your payment information.  Simply add items to your cart and proceed to the Checkout page where you will be offered Shipping Method choices and their prices. We will ship your order shortly after we receive payment from you.What is the return policy?Please see ourTerms & Conditionsfor complete details regarding our return policy.Do I have to pay sales tax?You only have to pay sales tax if you are located in the same state as our warehouse.I have a question on my charges.Click the "My Account / Order Status" link at the top right-hand side of our site to review your orders. You may compare your order history on our website, with your financial records. If you have further questions or concerns, please contact customer service for further assistance.I need a copy of my receipt/invoice.Click the "My Account / Order Status" link at the top right-hand side of our site to print invoices.When will my credit appear on my account?Credits usually take 7-10 business days from the time we receive your item(s).When will my credit card be charged?Your credit card will be charged within 24 hours prior to the shipment of your item(s).

Proud Stealth Owners