Powerful Design

Sleek, aerodynamic lines give the Amplify collection power, with a look of modern design and sumptuous comfort. Midback and highback mesh chairs are available in multiple frame, arm and base colors. The mesh back features adjustable lumbar bands that provide optimum ergonomics. The comfortable mesh back model comes in ten colors and the upholstered waterfall seat is available in 10 fabric or leather textile grades with optional contrast stitching. Amplify offers more built-in features than any other chair in its class, with enhanced synchro, height adjustable arms and adjustable lumbar support all standard. The curvaceous profile and soft, textured arm pads make this a chair that delivers style as well as substance. 


Amplify highback task chairs, SitOnIt Seating Sonnet Denim, upholstered seat


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Amplify highback task chairs, Momentum Telegram Celery, apple mesh, fog frame, fixed arms

  • Aerodynamic design
  • Adjustable lumbar support
  • Midback or highback
  • Waterfall seat
  • 3 arm types with textured arm pad
  • Supportive mesh
  • Optional seat depth adjustment
  • CAL 133 approved models
  • 300 lb. weight capacity
  • Lifetime Warranty
  • All options and 1,000s of textiles ship in 2, 5 or 10 days



Task chair

Task stool

Frame Colors

Fog and fog with silver frame (upholstered), the adjustable arm is silver - fixed arm is fog.



Black frame, upholstered back

Fog frame, upholstered back

Fog with silver frame & arms, upholstered back

Back Sizes



Arm Options


Height adjustable


Base Options




Polished aluminum


Back Material

Contrast stitching NOT available on upholstered back.


Upholstered (highback only)

10 Mesh Colors Available

Onyx (MC5)

Nickel (MC6)

Fog (MC7)

Navy (MC8)

Desert (MC9)

Fire (MC10)

Electric Blue (MC24)

Tangerine (MC28)

Aqua (MC30)

Apple (MC31)



Amplify Contrast Stitching - Mesh only

Contrast stitching adds a striking design element.

  • Available in 10 thread colors with no upcharge
  • Hand-selected threads complement the mesh
  • A stylish detail to highlight construction or add rich texture
  • Available with any SitOnIt Seating solid-color carded fabric, including leather and vinyl

Apple stitch, white leather

Desert stitch, chocolate leather

Electric Blue stitch, light gray leather

Fire stitch, black leather

Fog stitch, navy leather

Lemon stitch, black leather

Navy stitch, white leather

Nickel stitch, light gray leather

Onyx stitch, red leather

White stitch, navy leather

Product Info

  • Amplify Brochure (7.3 MB)
  • Amplify Price List (1.2 MB)
  • Amplify Mesh Program (2.4 MB)
  • Amplify Contrast Stitching Card (152.5 KB)
  • Amplify Control Adjustments (234.2 KB)
  • Amplify Stool Basic Controls (300.6 KB)
  • Amplify Lumbar Adjustments (678.5 KB)
  • Amplify Sell Sheet (1.4 MB)
  • Environmental Data Sheet (162.1 KB)
  • Feature Spotlight: Amplify Upholstered (839.8 KB)
  • Amplify AutoCad 2D Files (542.6 KB)
  • Amplify AutoCad 3D Files (5.3 MB)
  • Amplify Revit Files (72.4 MB)
  • Amplify Mech Adjustments (234.2 KB)