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GS8 GS12

GS8 and GS12 Eco-System™ Amplifier specifications:

Inputs: 8 or 12 gold RCA jacks with adjustable gain

Input impedance: 50k ohms

Outputs: 5 way gold binding posts

Output power: 50 watts RMS per channel (8 ohms)

Peak output power: 100 watts per channel (8 ohms)

Ideal impedance: 4 – 8 ohms

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

S/N ratio: Over 105 dB A weighted (50 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: Quiet 28 dBA

Power: Standby in Eco-System™ less than 5 watts

Maximum 750 watts at 117 VAC or 230VAC

Weight: GS8 20 lbs (9 kg); GS12 22 lbs (10 kg)

Construction: Steel chassis, powder coated; glass epoxy

printed circuit boards

Eco-System Power

Amplifiers

Installation Instructions v1.2

Warning: To be installed and/or used in accordance with

appropriate electrical codes and regulations.

Introduction: Thank you for your purchase of a Knoll

Eco-System multi-channel power amplifier and

congratulations on your choice. This amplifier is

specifically designed to save energy when idling, which

can be most of the time. When compared to similar power

amplifiers the GS8 and GS12 uses less than 5% of the

energy required for normal amps to idle.

FEATURES:

• Eco-System™ Circuitry saves energy (and

money) and increases power.

Warranty

• 12 channels x 50 watts RMS at 8 Ohms (over

100W peak). GS8 8 channels.

Knoll Systems warrants its products sold in the USA and Canada by

authorized Knoll dealers to be free of defects in materials and

workmanship. This warranty extends for three full years from the date

of purchase by the original consumer. Any products returned 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 incidental or

consequential damages. Some states do not allow the exclusion or

limitation of incidental or consequential damages, so the above

limitation may not apply to you. This warranty gives you specific legal

rights. You may have additional legal rights that vary from state to

state.

• Individual and automatic channel resetting

protection for low impedance, overheating,

overloading, overvoltage and undervoltage.

• Individual gain controls for all channels.

• Electronic Link feature connects stereo inputs

channel 2 through 6 to channel 1. GS8 connects

stereo inputs channel 2 through 4 to channel 1.

• Side-mounted thermostatically controlled fan for

internal cooling.

• Two rack spaces (3-1/2”) with optional rack

mount version.

Knoll Systems www.knollsystems.com

145 Tyee Drive Point Roberts, WA 98281

12140 Horseshoe Way Richmond BC V7A 4V4

tel (604) 272 4555, fax (604) 272 5595

Summary of content (4 pages)

PAGE 1
GS8 and GS12 Eco-System™ Amplifier specifications: Inputs: Input impedance: Outputs: Output power: Peak output power: Ideal impedance: Frequency response: S/N ratio: THD distortion: IMD distortion: Dimensions: Fan noise: Power: Weight: Construction: 8 or 12 gold RCA jacks with adjustable gain 50k ohms 5 way gold binding posts 50 watts RMS per channel (8 ohms) 100 watts per channel (8 ohms) 4 – 8 ohms 10 Hz – 40 kHz +/- 1dB (1w) Over 105 dB A weighted (50 watts) Less than 0.1% 20 Hz to 20 kHz Less than 0.
PAGE 2
The eco-friendly choice The Knoll GS8 and GS12 are class A/B amplifiers that produce 50 watts per channel at 8 ohms and 70 watts per channel at 4 ohms. While offering unparalleled reliability, power and sound quality the GS8 and GS12 offers a Knoll exclusive, the EcoSystem™ circuit. This patent pending circuit determines which of the 12 stereo channels (6 pairs) are in use and delivers power only to those channels needing it. The channels that are “off” are truly off, not in “standby” or “mute”.
PAGE 3
8. Make sure the speakers in each room are connected in phase with the amplifier + going to the speaker +. Out of phase speakers give unstable imaging and poor bass response. 9. Connect the AC power into an outlet than can supply at least six amps (750 watts) dedicated to each GS8 or GS12. 10. After the amp has been turned on adjust the “SENS” pot on the rear of the amplifier if necessary.
PAGE 4
GS12 Rear Panel The Link button is normally set to the in position to give all six stereo inputs individual sources. When a channel Link button is set to the out position, that channel is (Left/Right) linked or cascaded to input #1 (without the use of Y cords). Any or all combinations of linked inputs 2 to inputs 6 are possible. When all inputs are linked to input one, the input impedance is about 8500 ohms. Note: When linked unused RCA inputs can be used as outputs to other amplifiers.