Sherbourn Technologies 5-5210A, 7-2100A User Manual

4. Please retain this manual in a safe place for fu­ture reference about safety and operating matters.

Sherbourn

Te c h n o l ogies, Inc.

Owner’s Manual for Power
Amplifier Models
7/2100A and 5/5210A

The 7/2100A amplifier has seven 300/200 watt
channels (4 ohms/8 ohms) and the 5/5210A am­plifier has five 300/200 watt channels. The instruc­tions, specifications and connections described in

this manual apply to both models.

Thank you so much for your decision to pur­chase one of our superb Sherbourn amplifiers. We
take enormous pride in the design and build qual­ity of all of our products and we are confident that
our product will provide you with many years of
enjoyable and trouble-free service. Should you
have any need to call upon our services please feel
free to contact us at the address shown at the end
of this booklet; or, of course, you can contact the
dealership from which you purchased the product.

Full details of the warranty coverage provided
by Sherbourn Technologies can be found at the end
of this booklet.

Safety Instructions

1. Important Safety Instructions! Please read
all the safety and operating instructions shown
in this manual before operating this equipment.

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.

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.
Attention: Pour pevenir les chocs electriques pas
utiliser cette fuche polarisee avec un
prolongateur, une prise de courant ou un autre
sortie de courant, sauf si les lames peuvent etre
inserees afond ans en laisser aucune partie a
decouvert.

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.

Caution For Installation

1. Do please 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.

2. Locate the product away from heat sources such
as stoves, heat registers, radiators or other appli­ances including other amplifiers that produce heat.

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 to per­sons.

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.

3. Please mount the equipment in a wall or cabinet
only as described in this owner’s manual.

4. Do not use the equipment near water; for ex­ample near a bathtub, washbowl, kitchen sink, a
swimming pool or in a wet basement, etc.

5. 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.

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Connections and Care of the
Product

Connections

1. Connect this equipment only to the type of AC
power source as marked on the unit.

2. Always route AC power cords so that 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.

3. 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 please 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
the “E” (earth pin) of the power cord connected to
this product.

4. Do not overload wall outlets, extension or inte­gral convenience receptacles as this could result in
a risk of fire or shock.

Care of the Product

1. Clean the product by dusting with a dry cloth.

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.

Front Panel Indicators

With your amplifier connected to its preamp and
receiving an input signal at its first POWER ON
the blue LED will turn on with a full brightness.
Should you not hear music through the speakers it
could be that there is no signal to the input of your
amplifier and you should check the preamp/con­trol center for proper settings and connections.

Your amplifier front panel includes multiple blue
LED’s (one per channel). Adjacent to these LED’s
is a switch to allow you to turn them off should
you wish to do so.

2. Do not permit objects of any kind to be pushed
and/or fall into the product through the enclosure
openings

Custom 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

Rear Panel Connections

It is strongly recommended that you make all
of your connections and check them thor­oughly
from the front panel switch. This will ensure
that you do not accidentally short the output
of the amplifier or encounter any electric
shock or sparks or cause any initial and sur­prisingly loud signals to be played through
your loudspeakers.

1. The connection between your Preamp/Control
Center will be made discretely via a cable from the
output of your Preamp to the input of your
amplifier.

2. The amplifier gives the option (depending on
your preamp) of making the connection with ei­ther an XLR Balanced Input or an RCA Unbal­anced Input.

3. If your system has a noisy ground connection or
if you need to run a distant input cable to the

before powering up your amplifier

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Rear panel view of model 7/2100A

Rear panel view of model 5/5210A showing nonfunctional channels in shaded areas

amplifier, it is recommended that wherever pos­sible you use the XLR Input for your connection.

4. Your amplifier includes a 12V DC trigger input
connector to allow for remote integration with your
preamp/control center. If your preamp includes
provision to output 12V DC to remotely turn on
other equipment, you can use a control cable to
connect the preamp to the trigger input of your
amplifier to allow it to automatically turn on when­ever you turn on your preamp. We recommend
that a shielded coaxial cable be used for this pur­pose. A removeable plug at the 12V trigger input

(comes with the amplifier) shall be unplugged and
wired with the 12V in the correct polarity. The in­put impedance of the 12V input is 2.2k ohms; it
will accept an input voltage from 9V to 12V.

5. It is strongly advised that you only use the power
cords supplied with the amplifier. Never use any
other power cords with a smaller gauge than the
one provided. Do not use an extension cord to in­stall your amplifier since it could effectively re­duce the current capacity supplied to the amplifier.

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