Wharfedale MP 1200 User Manual

MP 1200 / 1800 Power Amplifier

OFF

CHB

PEAK

CHANNEL A

(BRIDGE)

5

6

4

3

2

1

0

10

LEVEL LEVEL

ON

POWER PROTECT BRIDGE

CHA

PEAK

CHANNEL B

5

6

4

3

7

8

9

7

2

8

9

1

0

10

Operating Manual

POWER AMPLIFIER

The WHARFEDALE Wireless Works was established in 1932
by Gilbert Briggs who soon established a reputation as one
of the most innovative loudspeaker engineers of his
generation. His company was at the leading edge of an
exciting new technology which was dedicated to bringing the
pleasure of music and entertainment into people's homes. As
the technology advanced Wharfedale gave many music
lovers their first taste of High Fidelity, mounting a series of live
sound demonstrations which excited the audio world and
heralded the birth of the modern hi-fi loudspeaker.

Today Wharfedale Pro takes the same uncompromising
approach to the design and manufacturing of every audio
product, using high-quality components and state-of-the-art
testing equipment to ensure consistency and high
performance. At Wharfedale we design and build all of our
products. We control all the variables, so that we don't have
to compromise our design goals.

Wharfedale Pro MP Series of Professional Power Amplifiers
are high quality amplifiers suitalbe for stage, club and studio
use. Using proven circuitry they are straightforward to use,

reliable in operation and capable of excellent performance.

Wharfedale Pro MP Series of Professional Power
Amplifiers

Over engineered power supplies with substantial
high current transformers.

Fully Protected Circuitry: Protection for thermal
Runaway; output short circuits;

DC voltages; switch on/off transients and input overload.

Cool Running: A combination of a massive extruded
aluminium heat sink and variable speed fan ensures
effective cooling.

Over Engineered Design: From the strong steel case
through the thick multi layer circuit boards to the array
of power transistors, Wharfedale have built in a healthy
safety margin.

Modern manufacturing techniques and value
engineered design.

Unpacking

All Wharfedale Pro products are
fully checked before leaving the
factory. After unpacking please
inspect contents for any physical
damage. Please retain the
shipping carton if Possible and

internal packing material in case
the unit needs to be returned. Please check as soon as
possible the unit is functioning correctly. In the event of any
damage please contact your dealer immediately so that a
written claim for damages can be made.

Wharfedale Pro Limited Warranty

Wharfedale Pro MP Series Power Amplifiers are warranted
to be clear of defects in construction, materials and
malfunction under normal operating conditions. Wharfedale
will, during the warranty, and its own discretion, undertake to
make repairs at no charge if the product has been delivered
to Wharfedale Pro by a Wharfedale Dealer. Wharfedale
exclude normal exterior wear to finish and cannot be held

responsible for any system malfunction due to abuse or using
the units beyond the limits and conditions as stated within the
specified ratings. Wharfedale shall not be liable for any
consequential damages. Any implied warranties expire after
the given term.

This warranty is only valid providing:

I) Warranty applies to original purchaser only (warranty

not transferable)

II) Warranty card must be filled in fully and returned to

wharfedale Pro within 30 days from date of purchase.
Failure to do will not affect your statutory rights.

IV)Unit must be returned with original sales receipt or

other proof of purchase .
V) Unit is repaired by Wharfedale or authorised service
agent only.

These terms do not infringe your statutory rights.

1

MP 1200/1800

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.

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 two models, the Mp1200,
Mp1800. These power amplifiers are designed for
standard 19" (482mm) rack mounting. They have power
supplies with substantial heavy high current transformers
threrefore 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.

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
it 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 Must Be 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.

CLASS 2 WIRING

Class 2 wiring for all terminals provided the audio output
power exceeds 10W per channel under normal operating
conditions or the apparatus is intended to be installed or
interconnected in the field by a skilled person.

MP 1200/1800

2