21K Stereo amplifier specifications

Inputs:

Gold RCA jacks with adjustable gain

Input impedance:

50k ohms

Outputs:

5 way gold insulated binding posts

Output power:

90 watts RMS per channel (8 ohms)

Ideal impedance:

4 – 8 ohms

Frequency response: 10 Hz – 40 kHz +/- 1dB

S/N ratio:

Over 106 dB A weighted (90 watts)

THD distortion:

Less than 0.1% 20 Hz to 20 kHz

IMD distortion:

Less than 0.01% 60 Hz 7 kHz 4:1 (SMPTE)

Dimensions:

17” x 3.5” x 11.5” (432 x 89 x 292 mm)

Fan noise:

No fan needed

Power:

Maximum 320 watts at 117 VAC 60 Hz

Weight:

20 lbs

Construction:

Steel chassis, powder coated; glass epoxy

 

printed circuit boards

Rack version:

21k-Rack

Three Year Limited Warranty

Knoll Systems warrants 21K amplifiers sold in the USA or Canada by authorized Knoll dealers to be free from defects in materials and workmanship. This warranty extends for three full years from the date of purchase by the consumer. Any products returned freight prepaid to Knoll Systems and found to be defective by Knoll Systems within the warranty period will be repaired or replaced at Knoll Systems option, at no charge. Knoll Systems will not be responsible for the actual cost of installation or removal of the product, nor for any consequential or incidental damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights. You may have additional rights, which vary from state-to-state. Knoll products sold outside of the USA and Canada may be covered by warranties provided by an authorized Knoll distributor. Please contact the distributor in the country that the Knoll product was purchased.

Knoll Systems www.knollsystems.com 145 Tyee Drive Point Roberts, WA 98281 12140 Horseshoe Way Richmond BC V7A 4V5 Telephone (604) 272 4555, Fax (604) 272 5595 Made in Canada, © 2005, All Rights Reserved

21K

Stereo Amplifier

Installation Instructions v1.1

Caution: To reduce the risk of electrical shock, do not remove the cover (or back). No user serviceable parts inside. Refer to qualified service personnel.

Warning: To reduce the risk of fire or electric shock, do not expose this appliance to rain or moisture.

The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within

the products that may be of sufficient magnitude to constitute a risk of electrical shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operation maintenance (servicing)

instructions in the literature accompanying the appliance.

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Knoll installation instructions 21K Stereo amplifier specifications

21K specifications

The Knoll 21K is a state-of-the-art ergonomic office chair designed to enhance workplace comfort and productivity. With its cutting-edge features and technologies, the 21K epitomizes modern seating solutions tailored for the dynamic office environment.

One of the standout characteristics of the Knoll 21K is its sophisticated lumbar support system. This feature has been engineered to promote healthy posture and reduce the risk of back strain during long working hours. Users can easily adjust the lumbar support to fit their individual needs, allowing for a customizable seating experience that caters to diverse body types.

The chair is built with advanced materials that not only provide durability but also contribute to its lightweight design. The breathable mesh backrest ensures optimal airflow, helping to keep the user cool and comfortable even in warmer conditions. In addition, the seat cushion is crafted from high-density foam that contours to the body, further enhancing comfort and support.

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The armrests of the Knoll 21K are another highlight, featuring adjustable height and width settings. This flexibility ensures that users can find the most comfortable position for their arms, alleviating strain in the shoulders and neck. The chair also boasts a five-star base with smooth-rolling casters, enabling effortless mobility across various office surfaces.

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In summary, the Knoll 21K is a pinnacle of ergonomic design, featuring adjustable lumbar support, breathable materials, a synchronized tilt mechanism, and customizable armrests. Its combination of comfort, flexibility, and style makes it an ideal choice for anyone seeking to improve their sitting experience in the modern office. With its innovative technologies, the Knoll 21K is not just a chair; it's an investment in better health and productivity.