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MP SERIES
PROFESSIONAL POWER AMPLIFIER
OPERATING MANUAL AND USER GUIDE
www.wharfedalepro.com
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TABLE OF CONTENTS
TABLE OF CONTENTS .............................................................................1
IMPORTANT WARNINGS & SAFETY INSTRUCTIONS ...........................2
INTRODUCTION .......................................................................................3
ABOUT THE WX SERIES .........................................................................3
FEATURES ................................................................................................3
FRONT PANEL FEATURES AND CONTROLS ........................................4
REAR PANEL FEATURES AND CONTROLS ........................................... 4
OPERATING MODE SWITCHES .............................................................. 5
OUTPUT WIRING .....................................................................................5
QUICK START GUIDE ..............................................................................6
DIMENSIONS ............................................................................................ 7
WIRING DIAGRAMS .................................................................................8
SPECIFICATION ....................................................................................... 9
WARRANTY ............................................................................................1
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IMPORTANT WARNINGS & SAFETY INSTRUCTIONS
1. Read these instructions
2. Follow all instructions
3. Keep these instructions
4. Heed all warnings
5. Do not use this apparatus near water
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including ampliers)
that produce heat.
9. Do not defeat the safety purpose of a polarised or grounding plug. A polarised plug has two blades with one wider
than the other. A grounding plug has two blades and a third grounding blade. The wide blade or the third blade is
provided for your safety. If the provided plug does not t into your outlet, consult an electrician for replacement of the
obsolete outlet.
0.Protect the power cord from being walked on or pinched, particularly at the plug, receptacle and or the point where it
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exits from the apparatus.
11.Only use attachments/accessories specied by the manufacturer.
12.Only use a stand, tripod, bracket or rack specied by the manufacturer, or sold with the apparatus. When a rack is
used, use caution when moving the rack and apparatus combination to avoid tip-over or injury.
3.Unplug the apparatus during lightning storms or when unused for long periods of time.
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14. Refer all servicing to qualied personnel. Servicing is required when the apparatus has been damaged in any way
including but not limited to power supply cord or plug damage, liquid ingress, foreign objects in the chassis, exposure
to rain/moisture or impact damage. In addition the unit must be serviced when you experience any abnormal
operation.
CAUTION: These servicing instructions are for use by qualied service personnel only. To reduce the risk of electric
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shock, do not attempt to perform any servicing other than that contained in the operating instructions unless you are
qualied to do so. In addition opening the casing will result in your warranty becoming null and void.
6. Do not install this apparatus in a confined space such as a book case or similar unit. Good ventilation should be
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maintained around the apparatus. Any vents, air-inlets or fans should not be obstructed by objects such as paper,
table-cloths, curtains etc.
WARNING: To reduce the risk of re or electric shock, do not expose the apparatus to rain or moisture. The apparatus
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should not be exposed to dripping or splashing and objects lled with liquids, such as vases, should not be placed on
the apparatus.
8. WARNING: The mains plug/appliance coupler is used as a disconnect device, the disconnect device shall remain
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readily operable.
The lightning ash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of
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non-insulated “dangerous voltage” within the product’s enclosure that may be of sufcient magnitude to constitute a
risk of electric shock.
Warning: To reduce the risk of electric shock, do not remove the cover (or back) as there are no user-serviceable
parts inside. Refer servicing to qualied personnel.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important
operating and maintenance instructions in the literature accompanying the appliance.
(Protective earthing terminal) The apparatus should be connected to a mains socket outlet with a protective
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earthing connection.
1. Correct Disposal of this product. This marking indicates that this product should not be disposed with other
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household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled
waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. To return your used
device, please use local return and collection systems or contact the retailer where the product was purchased. They
can take this product for safe environmentally friendly recycling.
ATTENTION: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
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INTRODUCTION
Congratulations on the purchase of your MP series professional power amplier. Wharfedale Pro MP ampliers are the
result of many years of experience in the use, design and manufacture of professional audio equipment.
We take great pride in engineering and building every Wharfedale Pro product and wish to thank you for entrusting us
with your sound.
From the time Gilbert Briggs built his rst loudspeaker in 1932, to the present day, Wharfedale have maintained the same
standard of quality in components, workmanship and performance.
Please take the time to read this manual completely in order to ensure that you get the most from your MP power
amplier.
ABOUT THE MP SERIES
Suitable for portable sound reinforcement or xed installations, the series feature 2 models that deliver between 950W
and 1300W per channel into a 4 ohm load in a rugged 3U, 19” rack mount enclosure. An advanced transformer power
supply and Class TD topology deliver high power with low distortion in a compact and light weight form factor.
A full suite of protection includes thermal, over-current, DC, short circuit protect and power on/off mute. The MP Series
features XLR inputs and linked outputs with a maximum input level of +22dBu allowing integration with any typical
professional audio system. The variable speed fans keep the amplier rack quiet when not in use. The MP series features
3 different operating modes, parallel, stereo and bridge.
FEATURES
• MP 2800S: 950W*2@4Ohms (RMS), 640W*2@8Ohms (RMS), 2800W@4Ohms (BTL)
MP 4000: 1300W*2@4Ohms (RMS), 850W*2@8Ohms (RMS), 4000W@4Ohms (BTL)
• 2 channels XLR inputs with link outputs
• 3 operation modes (PARALLEL, STEREO and BRIDGE)
• Power, Protect, BRIDGE and PEAK indicators
• Thermal protect, over current protect, DC protect, output short protect, power on/off mute
• Ultra quiet variable speed fans
• Speakon outputs for speakers
• 3U rack mount chassis
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FRONT PANEL FEATURES AND CONTROLS
1 2 3 4 5 6
1. Power Switch: Push to power the amplier up or down.
2. Power LED: Illuminates when the amplier is connected to mains power and switched on.
3. Protect LED: Illuminates when the amplier is in protect mode due to short circuit, over current or thermal overload.
4. BRIDGE LED: Illuminates when the amplier works at the bridge mode.
5. Peak LED: Illuminates when the amplier is being driven into clipping.
6. Input Trim: Controls the output level of the amplier.
REAR PANEL – FEATURES AND CONTROLS
1 2 3 4 5 6
1. Mode Switch: There are 3 switchable operating modes, parallel, stereo and bridge.
2. Mains Power Cord: The unit has a fixed power cord, and for the safety, this cord is not allowed to be replaced
arbitrarily by the user.
WARNING: DO NOT ATTEMPT TO BYPSS THE GROUND CONNECTION OF THE POWER CORD!
3. Circuit Breaker: Provides over-circuit protection to amplier. Push to reset it after overhaul.
4. SPEAKON Output: For connection to passive loudspeakers.
5. XLR Input: Balanced XLR input for connection to 0dBu line level sources.
6. XLR link Output: Balanced XLR output to another MP amplier.
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OPERATING MODE SWITCHES
There are 3 different operating modes switchable for the MP series ampliers.
PARALLEL (right) mode- This setting connects both inputs together.
One signal feeds both channels. Each channel's Gain control and
loudspeaker connection remain independent.
STEREO (middle) mode- Each channel remains independent. The
amplier may be used for two different signals.
BRIDGE (left) mode- This setting combines both channels into a
single channel with twice the output power. Use only the rst channel's
input and Gain control. Set the second channel's Gain control at
maximum. The load must be rated for the higher output power.
OUTPUT WIRING
The MP Series employ Speakon output connectors. Ensure that only heavy gauge two conductor speaker cables with
professionally wired Speakon connectors are used for connection from amplier to loudspeaker.
STEREO and PARALLEL Mode- Connect each loudspeaker to its own channel of the amplier, as shown on the right
side of the Speakon. The Mode switches must be set for Stereo or Parallel Mode.
BRIDGE Mode- Bridge Mode congures the channel pair to drive a single audio circuit. The Mode switches must be set
for Bridge Mode. Connect the load as shown on the right side of CH A’s Speakon.
STEREO/
PARALLEL
1
CH A
CH B
WARNING: Do not use less than 4 ohm load in Bridge Mode!
WARNING: Note polarity of connection for Bridge Mode.
OUTPUT WIRING WARNING: CLASS 2 WIRING SHALL BE USED. FOR BRIDGE MODE, CLASS 3 WIRING SHALL
BE USED.
OUTPUT SAFETY WARNING! Make all connections with amplier turned off. Risk of hazardous energy!
+=Positive
1-=Negative
1
+=Positive
1-=Negative
BRIDGE
1+=Positive
2+=Negative
No use
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QUICK START GUIDE
1. Make sure that the power switch is set at the OFF position while making connections to and from the power amplier.
2. Connect all devices in the signal path and ensure that each connection is secure.
3. Set all level and gain controls to their minimum.
4. After powering up all other devices rst, turn the power switch on the amplier to the ‘ON’ position and verify that the
POWER LED is illuminated.
5. Turn the amplier volume control up to the “7” setting. (This setting can be adjusted higher or lower, as needed, after
set-up). With source signal present starts to set each gain stage in your signal path, starting at the beginning of the
chain. It is best practice to make overall volume changes with the master fader of your mixing console once the
amplier input trim has been calibrated.
6. When powering down, make sure that the power ampliers are switched off rst.
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DIMENSIONS
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WIRING DIAGRAMS
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SPECIFICATION
Model Name MP 2800S MP 4000
Stereo Power Output
8 ohms*2 640 Watts 850 Watts
4 ohms*2 950 Watts 1
2 ohms*2 1
Bridged Mono Output
8 ohms 1
4 ohms 2800 Watts 4000 Watts
Input Sensitivity & impedance
Sensitivity +0dBu (0.775Vrms) +0dBu (0.775Vrms)
Balanced XLR input 20Kohms 20Kohms
Maximum Input Level 22dBu (9.7Vrms) 22dBu (9.7Vrms)
Voltage Gain 39dB 40dB
Slew Rate >40V / us >40V / us
Crosstalk <-70dB <-70dB
S/N >
Distortion (1W) <0.0
Frequency Response
+/-1dB @ 4 Ohms 20Hz - 20KHz 20Hz - 20KHz
+/-3dB @ 4 Ohms 5Hz - 30KHz 5Hz - 30KHz
Damping Factor >300 >300
Topology Class TD Class TD
Connectors
Signal Input and Output Female and Male XLR Jacks
Power Output SPEAKON Jacks
Controls
Front panel AC Switch, CHA and CHB Gain Knobs
Rear panel Parallel, Stereo & Bridge Mode Switch
300 Watts 1950 Watts
900 Watts 2700 Watts
100dB >100dB
15% <0.015%
300 Watts
Protections
Indictors Power, Protect, Bridge, Peak
Cooling Variable Speed Fan
AC Power Options
Dimensions 132*494*464mm (5.2*19*18 in)
Weight (Net) 25kg (55lb) 28kg (62lb)
Weight (Gross) 27.5kg (61lb) 30.5kg (67lb)
Thermal protect, Over-current protect, Output DC protect, Output short
protect, Power on/off mute
AC
110-120V~ 50/60Hz or AC100V~ 50/60Hz;
AC220-230V~ 50/60Hz or AC240V~ 50/60Hz
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WHARFEDALE PRO LIMITED WARRANTY
Wharfedale Pro products are warranted of manufacturing or material defects for a period of one
year from the original date of purchase. In the event of malfunction, contact your authorized
Wharfedale Pro dealer or distributor for information.
*Be aware that warranty details may differ from country to country. Contact your dealer or
distributor for information. These terms do not infringe your statutory rights.
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Wharfedale Professional
IAG House, 13/14 Glebe Road, Huntingdon, Cambridgeshire, PE29 7DL, UK
www.wharfedalepro.com
Wharfedale Professional reserves the right to alter or improve specications without notice.
All rights reserved © 2014 Wharfedale Pro. Wharfedale Pro is a member of the IAG Group.
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