Electrovoice cp3000s Mode D'Emploi

Power amp output connection for the two channels 
A (left) and B (right) is provided via SPEAKON-type 
output connectors. A plastic cover to prevent inadvertent 
erroneous connection protects the BRIDGED OUT 
connector. Remove the cover only when actually operating 
the power amplifi er in Bridged-Mode.

CAUTION!
Pins 2+/2- of the CHANNEL A SPEAKON output, which 
normally are not in use, are also connected to output B to 
ensure comfortable connection of 2-way speaker cabinets 
(e.g in Bi-Amping Mode) when using 4-wire Speakon 
cables.

 

 

 

With the BRIDGED-MODE switch being engaged, using the channel A input  

 

 

 

for audio signal feed is mandatory, since input B provides no function. While  

   the 

amplifi er of channel A operates as usual. Additionally, the audio signal is  

 

 

 

internally inverted and routed to the amplifi er of channel B. Both amps – A 

 

 

 

and B – now work in push-pull operation to provide doubled output voltage at  

   the 

BRIDGED-OUT 

connector.

 

 

 

The regular output voltage of each amplifi er channel A + B is still present at the  

 

 

 

corresponding output connectors CHANNEL A and CHANNEL B. However,  

 

 

 

using these signals is not recommendable because of the aforementioned  

 

 

 

phase inversion. Operating the power amp in Bridged Mode with loads of 

 

 

 

2ohms connected is not allowable.

 

The ground-lift switch allows eliminating noise loops. When operating the  

 power 

amplifi er in a 19“ rack-shelf system or cabinet together with other  

 

equipment, setting the switch to its GROUNDED position is recommended.  

 

When operating the power amplifi er together with appliances with differing  

 

ground potentials, set the switch to its UNGROUNDED position

Under normal circumstances, the mains fuse only blows in case of fault.  
Replacing the fuse is only permissible for authorized service personnel  
using a new fuse of the same type with identical amperage, voltage and  
blow characteristics. The high-performance mains cord supplied with your  
power amplifi er complies with applicable safety regulations, plus that its  
diameter corresponds to the power amp’s power output capacity. Whenever 

possible make sure to use the supplied mains cord for connecting the power amp to the mains network.
Using a different mains cord with a smaller diameter results in higher leakage, consequently reducing 
the amplifi er’s maximum power output capacity.

8

To prevent short-circuit and/or to protect your speaker systems from being damaged when connecting 
the cabinets, please make sure to mind the Low- and High channels’ specifi c pin-assignments!
If, for example, the subwoofer audio signal is used to feed a tweeter, it is more than likely that this will 
instantly destroy the HF-driver’s coil.
WARNING:
The speaker output terminals are marked with a symbol “       ”,  which signifi es that these 
terminals present a shock hazard to the user.