Sherbourn
Technologies, Inc.
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.
1
Safety Instructions
1.Important Safety Instructions! Please read all the safety and operating instructions shown in this manual before operating this equipment.
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.
11.Locate the product away from heat sources such
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.
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. We 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.
2
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.
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-
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.
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 Technology. 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.
3
Loading...