Sherbourn Technologies TST-2.200 Owners manual
Sherbourn
Te c h n o l o g i e s , I n c .
Owner’s Manual
for
Model TST2/200
Amplifier
All of us at Sherbourn Technologies thank you for your decision
to purchase one of our amplifiers. We take enormous pride in the
design and manufacturing quality of our products and are confident that your new TST2/200 will provide you with many years of
enjoyable and trouble-free service. Should you ever have any
need to call upon our services, please feel free to contact us at the
address shown at the end of this manual or you can contact the
dealership from which you purchased the product.
Sherbourn makes a complete line of amplifiers and a 7.1 Preamp/
Processor/Tuner for all kinds of listening pleasure. Whether your
taste is for two channel stereo, multi channel home theater or multi
channel whole house custom installation, there is a Sherbourn product that will be a perfect fit for your needs.
Once again we thank you for your decision to purchase one of our
fine products.
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Safety Instructions
1. Important Safety Instructions! Please read all
the safety and operating instructions shown in this
manual before operating this equipment.
as stoves, heat registers, radiators or other appliances
including other amplifiers that produce heat.
12. Mount the equipment in a wall or cabinet only
as described in this owner’s manual.
13. Do not use the equipment near water; for example near a bathtub, washbowl, kitchen sink, a
swimming pool, a wet basement, etc.
2. The lightening flash within an equilateral triangle
shown above is intended to alert you to the presence of uninsulated ‘dangerous voltage’ within the
product’s enclosure that may be of sufficient magnitude to constitute an electric shock.
3. The exclamation point within an equilateral triangle shown above is intended to alert you to the
presence of important operating and maintenance
(servicing) instructions in the literature accompanying this appliance.
4. Please retain this manual in a safe place for future reference about safety and operating matters.
5. Adhere to all warnings and follow all operating
instructions.
6. Warning: To reduce the risk of fire or electrical
shock, do not expose this equipment to rain or
moisture. There are no user serviceable parts inside. Refer servicing to qualified personnel.
7. Caution: To prevent electrical shock do not use
this (polarized) plug with an extension cord, receptacle or other outlet unless the blades can be
fully inserted to prevent blade exposure.
8. For added protection for this product during a
lightening storm or when it is left unattended and
unused for long periods of time, it is recommended
that you unplug the unit from the wall outlet. This
will prevent damage to the product due to lightening or power line surges.
9. Do not use attachments not recommended in this
owner’s manual as they may cause hazards.
10. Locate the equipment for proper ventilation.
For example, the product should never be allowed
to operate while positioned on a bed, rug, sofa or
any such surface where proper ventilation is not possible. Nor should the unit be placed in a built-in
installation such as a cabinet or armoire, etc. in such
a way as to impede the air flow . Always ensure adequate ventilation openings - please see later comments regarding such an installation.
14. Do not place the product on an unstable cart,
stand tripod, bracket or table. The equipment is
heavy and should it fall, it could cause serious injury to a person and/or serious damage to the equipment.
Caution For Installation
1. Your Sherbourn amplifier can be placed on any
table or shelf. It can also be custom installed in a
rack, and/or in a piece of cabinetry or furniture of
your choice. It is however, important that if the amplifier is going to be housed in an enclosed environment, that you allow for adequate ventilation. Despite the adequately sized heatsinks built into the
amplifier, it is still important that good ventilation
be provided. Do not install the amplifier directly
above another heat generating component such as
another amplifier without adequate ventilation.
2. If your amplifier is going to be placed in an enclosed space such as an armoire, it is essential that
adequate ventilation be provided. W e strongly suggest that the shelf on which the product is being
placed includes a cutout of at least twenty inches by
twelve inches (50 cm by 30 cm) directly under the
ventilation slots on the bottom of the amplifier. A
similarly sized cutout should be made in the upper
or rear wall behind the shelf so that free air can flow
from beneath the unit to the outside atmosphere. Also
allow a minimum of three inches (7.5 cm) free space
above the product and two inches (5 cm) on either
side of the product. This combination of space will
allow for a free flow of circulating air to help keep
the amplifier from overheating. If your cabinet includes a number of products, it may be advisable to
install a quiet fan to assist the cooling process.
3. The dealership from which you purchased the
product is an expert on custom installation procedures and can provide invaluable advice to help you
make an aesthetically pleasing and trouble free installation.
11. Locate the product away from heat sources such
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Caution For Connections
1. Connect this equipment only to the type of AC
power source as marked on the unit. Always route
AC power cords so they are not likely to be walked
on, or tripped over, or where they may be pinched
by items placed on or against them. Always pay
particular attention to cords at plugs and/or convenience receptacles, and at the point where they exit
from the product.
2. Do not defeat the inherent design features of the
polarized plug. Non polarized line cord adapters
will defeat the safety provided by the polarized AC
plug. If the plug should fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.
If you use this product in a country which only has
two slotted receptacles in the house, you must use a
three-pin adapter plug to earth ground which is the
“E” (earth pin) of the power cord connected to this
product.
3. Do not overload wall outlets, extension or integral convenience receptacles, as this could result in
a risk of fire or shock.
lectively switch each room off by releasing the applicable front panel switch from its depressed position, or c) selectively switch off a room’ s sound by
activating its volume control or other switch or IR
control. The volume level in the remaining rooms
is unaffected by this action. The eight switches are
marked 1 through 8 and correspond in number with
the eight sets of speaker outputs on the rear panel.
Rear Panel Connections
The TST2/200 has been designed to provide multiple rooms with identical performance. The following descriptions apply for all rooms since the
amplifier has only two channels.
Audio Input
The TST2/200 has two sets of audio inputs - left
and right RCA ‘unbalanced’ input jacks, and left and
right ‘balanced’ XLR inputs. If your installation
needs long cable runs between this amplifier and
your preamp OR if your installation exhibits a poor
ground system, it is recommended that the ‘balanced’
XLR connections be used.
The input sensitivity for the full 100 watts per channel output is 850mv.
Operating Voltage
The TST2/200 amplifier is factory-set for 110V,
120V or 230V AC operation at either 50 or 60 Hz,
according to the country for which the unit was
manufactured (230V in European Union countries,
in compliance with CE regulations). The operating
voltage cannot be changed by the user and any attempt to do so will void the warranty.
Care of the Product
Clean the product by dusting with a dry cloth. Do
not permit objects of any kind to be pushed and/or
fall into the product through the enclosure openings.
Front Panel Description
The front panel houses the main Power ON/OFF
switch. A blue LED will illuminate when the TST2/
200 is ON but will appreciably dim whenever the
amplifier goes into its ‘Standby’ mode. The LED
will only extinguish once the Power ON/OFF switch
is in the OFF position or when the TST2/200 is disconnected from its electrical outlet.
Speaker Switches
Each of the front panel push button switches links
with a pair of speaker outputs on the rear panel. The
consumer can thus choose to a) switch the complete
amplifier off from the master power switch, b) se-
Speaker Terminals
The TST2/200 provides eight sets of removable
speaker terminals for left and right hand speaker
connections.
Speaker Impedance
The amplifier is designed to operate with up to eight
pairs of 8 ohm speakers OR up to four pairs of 4
ohm speakers or any combination providing the total impedance does not fall below 1 ohm.
The TST2/200 is a remarkably versatile amplifier
that can drive a total impedance of 1 ohm due to its
use of TST - Thermal Shift T echnology . Should the
amplifier be subjected to a load of below 1 ohm impedance, it will likely go into a current protection
mode and will shut down. A continuance of this
condition may cause damage to the amplifier and
violate the warranty coverage.
Trigger Mode Switch
On
Setting the trigger mode switch to the ON position
allows the TST2/200 to stay “on” all the time and
prevents the amplifier from entering the standby
mode. The power to the amplifier can only be turned
off by turning off the front panel power switch or
disconnecting the power cord.
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