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5

ENGLISH

2.2 Foot mounting 

 
CDA-4D can also be table mounted and is supplied 
with feet and feet screws, 

see Diagram 3.

 

Ensure that, once positioned, the amplifier is well 
ventilated and that the ventilation apertures are not 
obstructed. If the system is taken out of use for a 
long period, disconnect the amplifier from the mains 
power supply.

To prevent damage, maintain adequate 
ventilation space to the sides of the amplifier. 
CDA-4D can be stacked vertically but 

be sure not to place the amplifier next to other 
components, or against the side of a cabinet. 
Doing so will block ventilation openings.

3. Controls and Connections

Rear panel sockets and switches, 
see Diagram 4. 

 
  1. Power input socket (IEC C14)  
  2. Output  
  3. Reset button 
  4. Ethernet (RJ45) socket 
  5. 12V trigger in / out 
  6. Digital inputs 
  7. Analogue inputs

Front panel controls, see Diagram 5. 

 
  1. Power LED 
  2. Ethernet LED 
  3. Zone status LEDs

3.1 Reset Button 

 

Using the factory reset can erase all setting 
and revert the amplifier back to the factory 
flashed firmware.

Reboot 

This allows the device to gracefully 
shut down and restart.

 a.

  Single press of the reset button - 

    The LED will flash green while rebooting

Reset 

This will reset all settings and all saved presets.

 a. 

Press and hold the reset button for 

    5 seconds until the LED starts flashing green. 
 
 

b.

  Release the button and wait for 

    the device to restart.

Note:

 Reboot and Reset can also be achieved 

via the Product Configuration Page, see section 
7.1.6 Settings Management

Factory Reset

 

This will reset all settings, all saved presets and 
device firmware to its original factory settings.

 a.

  Make sure the unit is turned off using 

    the AC power inlet switch.

 b

.  Press and hold the reset button and turn the 

    AC power inlet switch on – keep pressed for 10 
    seconds until the LED starts flashing green.

 c.

  Release the reset button and wait for 

    the device to restart.

Diagram 4.

 Rear panel

Diagram 5.

 Front panel

1.

1.

2.

3.

2.

3.

5. 6.

7.

4.

Diagram 3.

 Foot mounting

d

c

b

g

f

e

4x

4x

Summary of Contents for CDA-4D

Page 1: ...CDA 4D Distribution Amplifier...

Page 2: ...our installation Features 4 channel amplification in 2 zones with 125 watts per channel delivering high resolution audio Engineered to work with Bowers Wilkins installation speakers and subwoofers Hig...

Page 3: ...tuer les connexions Unit fuses may only be changed by skilled personnel fuse may be in the neutral mains should be disconnected to de energize the phase conductor Les fusibles de l appareil ne peuvent...

Page 4: ...the ventilation apertures are not obstructed If the system is taken out of use for a long period disconnect the amplifier from the mains power supply The CDA 4D is supplied with two rack mounting ears...

Page 5: ...s LEDs 3 1 Reset Button Using the factory reset can erase all setting and revert the amplifier back to the factory flashed firmware Reboot This allows the device to gracefully shut down and restart a...

Page 6: ...le on the network to other Bowers Wilkins CDA devices see Diagram 6 Refer to section 7 2 1 on how to setup your amplifier Analogue Input Primary Analogue Inputs 1L 1R Use these inputs for primary audi...

Page 7: ...erly Check the polarity of the speakers and wires before connecting to the amplifier To connect bridged tied load speakers see Diagram 10 1 Select BRIDGE TIED LOAD in the Product Configuration Page 2...

Page 8: ...ser 5 Enter the CDA 4D default network address product name serial number for example http cda 4d_XXXX xxxxxxx local in the browser address field and press return This will open the Product Configurat...

Page 9: ...al amplifier settings The following section will take you through each of the functions on this tab 7 1 1 Information In this section the user can add a name for the CDA 4D amplifier and enter the ins...

Page 10: ...is set to Auto Detect ON In this mode signal sense and 12V Trigger are turned off The amplifier will always stay on AUTO DETECT This mode uses signal sense to turn the amplifier on 12V TRIGGER In thi...

Page 11: ...cted alerts are triggered 7 1 6 Settings Management Import Restore and Export Settings The Import Restore and Export button allows you to import and export saved settings from a location from your com...

Page 12: ...2 Input Output Settings In the Input Output Settings tab configuration of the routing for each input to a selected output can be made here Mode of use individual trim level and volume parameters can...

Page 13: ...g devices are able to recognise each other on the network The sibling device will be shown in the INPUT SOURCE drop down with the serial number or friendly name of the device shown in the list You wil...

Page 14: ...type of Bowers Wilkins products available for selection in the next section Examples of the mode and configuration Bridge Tied Load Mode When more power is required two channels can be bridged into o...

Page 15: ...5 Output Source Priority Source 1 This is the primary source you will direct to the speakers Left inputs default to left outputs and right inputs to right outputs Source 2 This is used as a secondary...

Page 16: ...CDA 4D is designed to provide the best audio quality when used with Bowers Wilkins speakers When a third party product is being used select an User Preset in the Speaker selection Fine adjustments ca...

Page 17: ...17 ENGLISH Third party products when a User Preset is selected...

Page 18: ...opdown before choosing an action import export IMPORT single preset allows importing of the selected presets from a computer EXPORT single preset allows saving the selected preset from the amplifier t...

Page 19: ...increase or decrease the gain at selected frequency Filter Type Filter Type available Parametric High Shelf or Low Shelf Crossover This is where High Pass HP or Low Pass LP crossover filters can be ap...

Page 20: ...e Registration Evaluation Authorisation and restriction of Chemicals REACH and the disposal of Waste Electrical and Electronic Equipment WEEE Consult your local waste disposal authority for guidance o...

Page 21: ...V trigger input threshold typically 3V recommended input is 5 15V Controls Indicators Front panel 1 x Power LED Unit active White Fault Red 1 x Network status LEDs Network present White Fault Red 2 x...

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