KES600 Eco-System™ 12 Channel Amplifier

• Eco-System™ circuitry saves energy (and money) and increases power. 

• Individual and automatic channel resetting protection for low impedance, overheating, overloading, overvoltage and undervoltage. 

• Two rack spaces (3-1/2") with optional rack mount version. 

• Individual level gain controls for all channels. 

• 12 channels rated at 50 watts RMS per channel (100 watts peak). 

• Gold binding posts spaced for dual banana plugs. 

• Electronic Link feature connects stereo inputs channel two through six to channel one. 

• Side-mounted thermostatically controlled fan for internal cooling.
  

The eco-friendly choice

The Knoll KES600 is a class A/B amplifier that produces 50 watts per channel at 8 ohms and 70 watts per channel at 4 ohms. While offering unparalleled reliability, power and sound quality the KES600 offers a Knoll exclusive, the Eco-System™ 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". With this circuit the active channels share more rail voltage thus having more reserve power for the stereo channels in use.

The class A/B amplifier design circuitry was chosen simply because of its obvious sound quality superiority over other high efficiency designs such as class D or class H.

The most important feature of the Eco-System™ circuit is the electrical savings that is delivered to the owner over what a comparable class A/B amplifier will cost to operate. The typical home owner will see a savings of hundred dollars or more per year in actual electrical costs and that can be multiplied when taking into account the increased costs of air conditioning the home to extract unwanted heat produced by a typical multi-channel amplifier.

The KES600 also features a very quiet energy saving thermostatically controlled fan. A comparable amplifier without the Eco-System™ circuit (we should know, we make lots of them) uses about 14 times (65 watts) as much power while idling in standby. By comparison the KES600 with Eco-System™ uses under 5 watts while idling!

For nearly 15 years Knoll multi-channel amplifiers have sold around the world because of their legendary reliability and unparalleled sound quality. The KES600 takes the next logical step by being eco-friendly. Please consider the environment when choosing your next system.

Specifications:

 

Inputs	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 292mm)
Fan Noise	quiet 28 dBA
Power (standby in Eco-System™)	less than 5 watts
Power (maximum)	750 watts at 117 VAC or 230VAC
Weight	22 lbs (10 kg)

Note: Specifications subject to change without notice.

Rear View: 

Options:

   Rack mount version for standard 19" rack. Occupies two rack spaces and we strongly recommend blank spaces above and below for maximum power output.

   An eight channel version is available, Knoll model KES400.

   Eco-System™ is a trademark of Pacific Sound & Signal Inc.

   Knoll is a trademark of Pacific Sound & Signal Inc.