Knoll GSZ44 User Manual
GSZ44
8 Channel Eco-System™
Controller-Amplifier
Installation Instructions v1.2
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Important Safety Instructions:
1) Read these instructions.
2) Keep these instructions.
3) Read all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.
8) Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades with one wider than the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or the third prongs are provided for your safety. If the provided
plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold
with the apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
13) Unplug this apparatus during lightning storms or when unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
15).Under no circumstances should the output terminals of the amplifier be short-circuited.
16).Be sure that the loudspeakers connected can handle the output power of the amplifier at the
loudspeakers rated impedance. The warranty on the amplifier does not cover damage to
loudspeakers that have inadequate power handling capabilities.
17) Where an all-pole MAINS SWITCH is used as the disconnect device, the location on the
apparatus and the function of the switch shall be described, and the switch shall remain readily
operable.
18) A push button is used to turn the power off and on.
19) When the front panel push button switch is in the in position the apparatus is powered on.
CAUTION: These servicing instructions are for use by qualified service personnel only. To reduce
the risk of electric shock, do not perform any servicing other than that contained in the operating
instructions unless you are qualified to do so.
.
Note: Where the mains plug or an appliance cover is used as the disconnect devise, the
disconnect devise shall remain readily operable.
WARNING: This product may contain chemicals, including lead, known to the State of California
to cause birth defects or other reproductive harm. Wash hands after handling.
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FCC Warning
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Canada
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
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.
Note: It is very important to use a top quality
RJ45 8/8 crimper tool. We strongly suggest
using a cat 5 / RJ45 electronic tester to verify
the wire conductors.
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Introduction:
controller amplifier and congratulations on your choice. The GSZ44 features
four deluxe digital volume controlled stereo amplifiers with individual four
source selection. This is Knoll's fourth generation of multi-channel, highquality power amplifiers. The GSZ44 is designed to meet the amplifier needs
of custom installed multi-zone systems where high quality sound is a specific
requirement.
Each of the four zones or rooms can select any of the four inputs, with
individual volume control, bass and treble. Extras such as an external voltage
trigger that can turn source equipment on and off, individual zone infrared
outputs and many more features give the GSZ44 exceptional value when
installed in homes and large complex systems. Except for the power button
all controls are rear mounted. A data port is provided for ganging multiple
GSZ44's. Infrared signals can be relayed from the keypads to the source
equipment.
The GSZ44 is controlled by MR40 keypads.
Four input source selection. Each of the four stereo amplifiers is provided
with four input source selection. Selection, volume level, bass and treble is
made on MR40 keypads or a Knoll remote control (or a programmed remote
control). Rooms can have different source selections, volumes, etc.
Four internal 80 position stereo volume controls. The four zones each
require a MR40 keypad. The Knoll RB8 remote control (or a programmed
remote control) in conjunction with the MR40 keypad can control each zone.
The keypads are typically mounted in the room with the speakers and they
control amplifier power on/off, volume up/down and mute as well as source
selection.
Thank you for your purchase of a Knoll GSZ44 8 channel
Cost and size efficiency. The GSZ44 consists of a total of 8 power
amplifiers in one 3-1/2" high enclosure (two rack spaces). Each power
amplifier channel can deliver 30 watts RMS with peaks of 60 watts. Because
of its unique design the GSZ44 delivers exceptional value.
Automatic protection circuitry. Each GSZ44 amplifier channel is
individually and fully protected against low impedance, overheating,
overloading, over voltage and under voltage. The protection circuitry
automatically restores the amplifier channel as soon as its parameter returns
to the safe operating area.
Individual bass and treble adjustment. Each channel features adjustments
so installers can preset the room for speaker differences and listener
preferences.
External trigger. The GSZ44 can turn on and off source components with
its 12vdc trigger output.
Infrared controller ports. Each zone or room has its own infrared output
jack. An all zone jack is also provided.
Zone 1 has line level outputs so more powerful power amplifiers can be
connected to this output. The line level output is controlled as to volume,
bass, treble and source selection.
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