Wharfedale Pro MP 2800 Operating Manual page 4

POWER AMPLIFIER
PLEASE READ IMPORTANT INSTRUCTIONS
BEFORE USING THE AMPLIFIERS! SAFETY
INSTRUCTIONS
To reduce the risk of electric shock the user should
not remove the cover. All operating and safety
instructions should be fillowed. The unit should be
kept clear of water, fluids and moisture and not be
operated in damp conditions. The unit should be
operated in a well ventilated environment. The unit
should be kept away from excessive heat sources
such as radiators and if racked with other power
amplifiers there should be a free air flow to vent
out the heat produced check with (dealer). The
unit must only be connected to a power supply as
shown on the rear of the unit with the IEC cable (or
similar) provided with precaution taken to make
sure that the grounding (earthing) or prolarisation
is in place and not in defeat mode (ie. Earth
disconnected). The power cord must be situated
or routed so as not to be walked upon or pinched
or objects placed upon it with special attention to
the area where the power cable enters the unit.
The power cable should be disconnected during
prolonged non usage. The user should not attempt
to service the unit or do anything to the unit except
those things described in this manual. For service
and repair your dealer should be contacted. This
unit complies with the relevant safety regulations.
POWER NOTICE FOR SAFETY
All british and European countries have a nominal
230v mains power supply which in practice is
between 220V and 240V. In the USA the main
power supply is nominally 115V and in Japan 100V.
This unit is factory set to the correct voltage and
this can be checked by looking at the label on the
rear panel near the power cable. If the unit is to
be used in a country other than that if was shipped
to consult your dealer. The unit is suitable for use
with mains frequencies of 50-60Hz. As there are no
user serviceable components inside the amplifier,
and high voltages are present, DO NOT remove
the covers! Be sure to make all audio connections
to the amplifier before connecting to the mains
supply. Do not disconnect the amplifier from the
grounded equipment with the mains connector still
plugged into the mains supply. Important warning!
This Unit MustBe Grounded, Do not Disconnect the
Ground Connection! Any sound system should be
connected to ground at one point only. If there is

more than one Connection to earth, a GROUND
LOOP can be formed, which allows mains hum to
enter the circuitry, sometimes at a high level. If hum
occurs in the system consult your dealer.
APPLICATION
The new Mp range of power amplifiers from
Wharfedale is designed to give musicians, club
owners and DJ's the performance, reliability and
sound quality they require.
DESCRIPTION
The MP series consists of three models, the MP1200,
MP1800, MP2800. These power amplifiers are
designed for standard 19'' (482mm) rack mounting.
They have power supplies with substantial heavy
high current transformers therefore each model
requires rear rack support to prevent stress on the
front panel. These amplifiers are housed in steel
casing suitable for racking in professional flight
cases.
OPERATING
Before switching on the power amplifier ensure
that ALL audio inputs are connected, ALL speaker
cables are securely connected, ALL volume
controls on the front panel are fully off and that
the mains connections are safely and fully off and
that the mains connections are safely and securely
connected at the supply and amplifier unit.
CLASS 3 WIRING
Class 3 Wiring for TERMINALS with a measured
open-circuit voltage exceeding 120V r.m.s. but
not exceeding 300 V r.m.s. when delivering NON-
CLIPPED OUTPUT POWER.
FOR COMMERCIAL PURPOSE ONLY.