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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 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 resulting in more
reserve power for the stereo channels in use.
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
homeowner will see a savings of a 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 GS8 and GS12 also feature 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 GS12 with
Eco-System™ uses under 5 watts while idling!
For over 15 years Knoll multi-channel amplifiers have sold
around the world because of their legendary reliability and
unparalleled sound quality. The GS8 and GS12 take the next
logical step by being eco-friendly. Please consider the
environment when choosing your next system.
Sound cuts out 1. Verify speaker impedance is 4-16 ohms.
Changing speakers may be required.
2. Check if the amp feels hot. If it's
hot, increase cooling - see
Installation.
Sound is distorted 1. Turn the volume down.
2. Check speakers for damage.
3. Check inputs for proper levels.
GS8 or GS12 gain and source output
Level may have to be adjusted.
4. Speakers may be less than 4 ohms.
GS8 or GS12 does 1. Turn GS8 or GS12 power switch off
turn off (out).
2. With the power switch on, and all input
channels music source turned on, very
slowly adjust “SENS” on rear of
amplifier in a clockwise direction until
amp turns off.
Speaker pops when 1. Speaker may need resistor placed
amp turned on or off across terminal. Suggest 2k0 1/4 w.
This discharges the speaker internal
capacitor.