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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 inte-
gral 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.
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 am-
plifier is going to be housed in an enclosed envi-
ronment, that you allow for adequate ventilation.
Despite the adequately sized heatsinks built into
the amplifier, it is still important that good ventila-
tion be provided. Do not install the amplifier di-
rectly above another heat generating component
such as another amplifier without adequate venti-
lation.
2. If your amplifier is going to be placed in an en-
closed space such as an armoire, it is essential that
adequate ventilation be provided. We strongly sug-
gest 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 underthe ventilation slots on the bottom of the ampli-
fier. 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 over-
heating. If your cabinet includes a number of prod-
ucts, 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 proce-
dures 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/con-
trol center for proper settings and connections.
Your amplifier front panel includes multiple blue
LEDs (one per channel). Adjacent to these LEDs
is a switch to allow you to turn them off should
you wish to do so.
Rear Panel Connections
It is strongly recommended that you make all
of your connections and check them thor-
oughly
before powering up your amplifier
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 sur-
prisingly 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 ei-
ther an XLR Balanced Input or an RCA Unbal-
anced Input.
3. If your system has a noisy ground connection or
if you need to run a distant input cable to the
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Rear panel view of model 7/2100A
amplifier, it is recommended that wherever pos-
sible 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 when-
ever you turn on your preamp. We recommend
that a shielded coaxial cable be used for this pur-
pose. A removeable plug at the 12V trigger input
Rear panel view of model 5/5210A showing nonfunctional channels in shaded areas
(comes with the amplifier) shall be unplugged and
wired with the 12V in the correct polarity. The in-
put 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 in-
stall your amplifier since it could effectively re-
duce the current capacity supplied to the amplifier.
