CPD SERIES
Professional Power Amplifier
OPERATING MANUAL AND USER GUIDE
www.wharfedalepro.com
TABLE OF CONTENTS
TABLE OF CONTENTS.............................................................................. 1
IMPORTANT WARNINGS & SAFETY INSTRUCTIONS............................ 2
INTRODUCTION........................................................................................ 3
ABOUT THE CPD 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............................................................................... 5
DIMENSIONS............................................................................................. 6
WIRING DIAGRAMS.................................................................................. 7
SPECIFICATION........................................................................................ 8
SPECIFICATION........................................................................................ 9
WARRANTY............................................................................................. 10
IMPORTANT WARNINGS & SAFETY INSTRUCTIONS
1.
2.
3.
4.
5.
6.
7.
8.
Read these instructions
Follow all instructions
Keep these instructions
Heed all warnings
Do not use this apparatus near water
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers)
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 fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
10.Protect the power cord from being walked on or pinched, particularly at the plug, receptacle and or the point where it
exits from the apparatus.
11.Only use attachments/accessories specified by the manufacturer.
12.Only use a stand, tripod, bracket or rack specified 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.
13.Unplug the apparatus during lightning storms or when unused for long periods of time.
14.Refer all servicing to qualified 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.
15.CAUTION: These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric
shock, do not attempt to perform any servicing other than that contained in the operating instructions unless you are
qualified to do so. In addition opening the casing will result in your warranty becoming null and void.
16.Do not install this apparatus in a confined space such as a book case or similar unit. Good ventilation should be
maintained around the apparatus. Any vents, air-inlets or fans should not be obstructed by objects such as paper,
table-cloths, curtains etc.
17.WARNING: To reduce the risk of fire or electric shock, do not expose the apparatus to rain or moisture. The apparatus
should not be exposed to dripping or splashing and objects filled with liquids, such as vases, should not be placed on
the apparatus.
18.WARNING: The mains plug/appliance coupler is used as a disconnect device, the disconnect device shall remain
readily operable.
ATTENTION: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
19.The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of
non-insulated “dangerous voltage” within the product’s enclosure that may be of sufficient 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 qualified 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
20.
earthing connection.
Correct Disposal of this product. This marking indicates that this product should not be disposed with other
21.
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.
INTRODUCTION
Congratulations on the purchase of your CPD series professional power amplifier. Wharfedale Pro CPD amplifiers 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 first 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 CPD power
amplifier.
ABOUT THE CPD SERIES
Suitable for portable sound reinforcement or fixed installations, the series feature 4 models that deliver between 350W
and 1300W per channel into a 4 ohm load in a rugged 2U, 19” rack mount enclosure. An advanced transformer power
supply and Class AB/H 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 CPD 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 amplifier rack quiet when not in use. The CPD series
features 3 different operating modes, parallel, stereo and bridge.
FEATURES
• CPD1000: 350W*2@4Ohms (RMS), 230W*2@8Ohms (RMS), 1000W@4Ohms (BTL)
CPD1600: 620W*2@4Ohms (RMS), 400W*2@8Ohms (RMS), 1600W@4Ohms (BTL)
CPD2600: 1000W*2@4Ohms (RMS), 650W*2@8Ohms (RMS), 2600W@4Ohms (BTL)
CPD3600: 1300W*2@4Ohms (RMS), 870W*2@8Ohms (RMS), 3600W@4Ohms (BTL)
• 2 channels XLR inputs with link outputs
• 3 operation modes (PARALLEL, STEREO and BRIDGE)
• Power, Protect, Signal and Limiter indicators
• Thermal protect, over current protect, DC protect, output short protect, power on/off mute
• Ultra quiet variable speed fans
• Speakon outputs for speakers
• 2U rack mount chassis
FRONT PANEL FEATURES AND CONTROLS
1
2
3 4
6
5
7
1. LIMITER LED: Illuminates when the amplifier is being driven into clipping.
2. SIGNAL LED: Indicates presence of signal on the channel.
3. PROTECT LED: Illuminates when the amplifier is in protect mode due to short circuit, over current or thermal overload.
4. POWER LED: Illuminates when the amplifier is connected to mains power and switched on.
5. Input Trim: Controls the output level of the amplifier.
6. Power switch: To power the amplifier up or down.
7. Air filter: Knocked down air filter cover. Easily for clean. The air flow is from front to back.
REAR PANEL – FEATURES AND CONTROLS
1
2
3
4
5
6
7
8
1. XLR Input: Balanced XLR input for connection to 0dBu line level sources. CH1 INPUT is also the available input
channel for BRIDGE mode.
2. XLR link Output: Balanced XLR output to another CPD amplifier.
3. Mode Switch: There are 3 switchable operating modes, parallel, stereo and bridge.
4. LIMITER Switch: The internal limiter can prevent signal overload and distortion.
5. SPEAKON Output: For connection to passive loudspeakers.
6. Grounding Terminal: The grounding terminal for the chassis.
7. 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!
8. FUSE: Please use the same type fuse as the text of the chassis for replacing.
OPERATING MODE SWITCHES
There are 3 different operating modes switchable for the CPD
series amplifiers.
STEREO - Each channel remains independent. The amplifier
may be used for two different signals.
PARALLEL - This setting connects both inputs together. One
signal feeds both channels. Each channel's Gain control and
loudspeaker connection remain independent.
BRIDGE - This setting combines both channels into a single
channel with twice the output power. Use only the first 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 CPD Series employ Speakon output connectors. Ensure
that only heavy gauge two conductor speaker cables with
professionally wired Speakon connectors are used for
connection from amplifier to loudspeaker.
STEREO and PARALLEL Mode- Connect each loudspeaker to
its own channel of the amplifier, as shown on the left side of the
Speakon. The Mode switches must be set for Stereo or Parallel
Mode.
BRIDGE Mode- Bridge Mode configures 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 left side of CH 1’s
Speakon.
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
amplifier turned off. Risk of hazardous energy!
STEREO/
PARALLEL
CH 1
CH 2
BRIDGE
1+=Positive
1+=Positive
1-=Negative
2+=Negative
1+=Positive
1-=Negative
No use
QUICK START GUIDE
1. Make sure that the power switch is set at the OFF position while making connections to and from the power amplifier.
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 first, turn on the CPD amplifier and verify that the POWER LED is illuminated.
5. Turn the amplifier volume control up to the 3 o'clock position. (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
amplifier input trim has been calibrated.
6. When powering down, make sure that the power amplifiers are switched off first.
DIMENSIONS
WIRING DIAGRAM
SPECIFICATION
Model Name
CPD1000
CPD1600
8 ohms*2
230W
400W
4 ohms*2
350W
620W
8 ohms
700W
1200W
4 ohms
1000W
1600W
Sensitivity
0dBu (0.775Vrms)
0dBu (0.775Vrms)
Balanced XLR input
20Kohms
20Kohms
Maximum Input Level
22dBu (9.7Vrms)
22dBu (9.7Vrms)
Voltage Gain
35dB
37dB
Slew Rate
>40V / us
>40V / us
Crosstalk
<-70dB
<-70dB
S/N
>100dB
>100dB
Distortion (1W)
<0.02%
<0.02%
+/-1dB @ 8 Ohmes
20Hz - 20KHz
20Hz - 20KHz
+/-3dB @ 8 Ohmes
20Hz - 30KHz
20Hz - 30KHz
Damping Factor
>300
>300
Topology
Class AB
Class AB
Signal Input and Output
Female and Male XLR Jacks
Female and Male XLR Jacks
Power Output
SPEAKON Jacks
SPEAKON Jacks
Stereo Power Output
Bridged Mono Output
Input Sensitivity & impedance
Frequency Response
Connectors
Controls
Front panel
AC Switch, CH 1 and CH 2 Gain Knobs
Rear panel
Parallel, Stereo & Bridge Mode Switch; Limiter Switch
Protections
Thermal protect, Over-current protect, Output DC protect, Output short protect,
Power on/off mute
Indictors
Power, Protect, Signal, Limiter
Cooling
Variable Speed Fan
AC Power Options
AC110-120V~ 50/60Hz or AC100V~ 50/60Hz;
AC220-230V~ 50/60Hz or AC240V~ 50/60Hz
AC110-120V~ 50/60Hz or AC100V~ 50/60Hz;
AC220-230V~ 50/60Hz or AC240V~ 50/60Hz
Dimensions
88*483*330mm
88*483*330mm
Weight (Net)
11kg
13kg
Weight (Gross)
12.5kg
14.5kg
Carton Box
SPECIFICATION
Model Name
CPD2600
CPD3600
8 ohms*2
650W
870W
4 ohms*2
1000W
1300W
8 ohms
1940W
2590W
4 ohms
2600W
3600W
Sensitivity
0dBu (0.775Vrms)
0dBu (0.775Vrms)
Balanced XLR input
20Kohms
20Kohms
Maximum Input Level
22dBu (9.7Vrms)
22dBu (9.7Vrms)
Stereo Power Output
Bridged Mono Output
Input Sensitivity & impedance
Voltage Gain
39dB
41dB
Slew Rate
>40V / us
>40V / us
Crosstalk
<-70dB
<-70dB
S/N
>100dB
>100dB
Distortion (1W)
<0.02%
<0.02%
+/-1dB @ 8 Ohmes
20Hz - 20KHz
20Hz - 20KHz
+/-3dB @ 8 Ohmes
20Hz - 30KHz
20Hz - 30KHz
Damping Factor
>300
>300
Topology
Class H
Class H
Signal Input and Output
Female and Male XLR Jacks
Female and Male XLR Jacks
Power Output
SPEAKON Jacks
SPEAKON Jacks
Frequency Response
Connectors
Controls
Front panel
AC Switch, CH 1 and CH 2 Gain Knobs
Rear panel
Parallel, Stereo & Bridge Mode Switch; Limiter Switch
Protections
Thermal protect, Over-current protect, Output DC protect, Output short protect,
Power on/off mute
Indictors
Power, Protect, Signal, Limiter
Cooling
Variable Speed Fan
AC Power Options
AC110-120V~ 50/60Hz or AC100V~ 50/60Hz;
AC220-230V~ 50/60Hz or AC240V~ 50/60Hz
AC220-230V~ 50/60Hz or AC240V~ 50/60Hz
Dimensions
88*483*450mm
88*483*450mm
Weight (Net)
19kg
22kg
Weight (Gross)
22.5kg
25.5kg
Carton Box
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.
10
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 specifications without notice.
All rights reserved © 2014 Wharfedale Pro. Wharfedale Pro is a member of the IAG Group.