DAPAudio CA-4150 User manual

CA-4150
Highlite International B.V. –Vestastraat 2 –6468 EX –Kerkrade –the Netherlands
Product code: D4512
USER MANUAL
ENGLISH
V2

1
CA-4150
Product code: D4512
Preface
Thank you for purchasing this DAP product.
The purpose of this user manual is to provide instructions for the correct and safe use of this product.
Keep the user manual for future reference as it is an integral part of the product. The user manual shall be
stored at an easily accessible location.
This user manual contains information concerning:
●Safety instructions
●Installation and operation of the device
●Intended and non-intended use of the device
●Maintenance procedures
●Troubleshooting
●Transport, storage and disposal of the device
Non-observance of the instructions in this user manual may result in serious injuries and damage of
property.
©2022 DAP. All rights reserved.
No part of this document may be copied, published or otherwise reproduced without the prior written
consent of Highlite International.
Design and product specifications are subject to change without prior notice.
For the latest version of this document or other language versions, please visit our website
www.highlite.com or contact us at [e-mail].
Highlite International and its authorized service providers are not liable for any injury, damage, direct or
indirect loss, consequential or economic loss or any other loss arising from the use of, or inability to use or
reliance on the information contained in this document.

2
CA-4150
Product code: D4512
Table of contents
1. Introduction..........................................................................................................................................................3
Before Using the Product ..................................................................................................................................3
Intended Use .......................................................................................................................................................3
Text Conventions ................................................................................................................................................3
Symbols and Signal Words................................................................................................................................4
Symbols on the Information Label ..................................................................................................................4
2. Safety ....................................................................................................................................................................4
Warnings and Safety Instructions ....................................................................................................................5
Requirements for the User.................................................................................................................................6
3. Description of the Device ...................................................................................................................................7
Front View ............................................................................................................................................................7
Back View ............................................................................................................................................................7
Product Specifications ......................................................................................................................................8
Dimensions...........................................................................................................................................................9
4. Installation ............................................................................................................................................................9
Safety Instructions for Installation ....................................................................................................................9
Installation Site Requirements ..........................................................................................................................9
Rack Mounting .................................................................................................................................................10
Connecting to Power Supply.........................................................................................................................10
5. Setup and Operation ........................................................................................................................................10
Warnings and Precautions .............................................................................................................................10
Turning On/Off ..................................................................................................................................................11
Setting Gain.......................................................................................................................................................11
5.4. LED Statuses.......................................................................................................................................................11
Setting Cutoff Frequency................................................................................................................................11
Setup Examples ................................................................................................................................................11
Mode 1 –Ch A/B/C/D –All Stereo......................................................................................................12
Mode 2 –Ch A/B/C/D –All Parallel ....................................................................................................13
Mode 3 –Ch A/B –Bridge, Ch C/D –Bridge.....................................................................................14
Mode 4 –Ch A/B –Parallel, Ch C/D –Parallel..................................................................................15
Mode 5 –Ch A/B –Stereo, Ch C/D –Bridge (Full Range) ..............................................................16
Mode 6 –Ch A/B –Parallel, Ch C/D –Bridge (Full Range) ............................................................17
Mode 7 –Ch A/B –Stereo, Sub (Ch C/D –Bridge, Input = Ch C).................................................18
Mode 8 –Ch A/B –Stereo, Sub (Ch C/D –Bridge, Input = Ch A+B).............................................19
6. Troubleshooting .................................................................................................................................................20
7. Maintenance .....................................................................................................................................................20
Safety Instructions for Maintenance.............................................................................................................20
Preventive Maintenance................................................................................................................................20
Basic Cleaning Instructions ...................................................................................................................21
Corrective Maintenance................................................................................................................................21
Replacing the Fuse ................................................................................................................................21
8. Deinstallation, Transportation and Storage ....................................................................................................21
9. Disposal ..............................................................................................................................................................22
10. Approval.............................................................................................................................................................22

3
CA-4150
Product code: D4512
1. Introduction
Before Using the Product
Important
Read and follow the instructions in this user manual before installing, operating or
servicing this product.
The manufacturer will not accept liability for any resulting damages caused by the non-observance of
this manual.
After unpacking, check the contents of the box. If any parts are missing or damaged, contact your
Highlite International dealer.
Your shipment includes:
●DAP CA-4150
●Schuko to IEC power cable (1,5 m)
●User manual
Fig. 01
Intended Use
This device is intended for professional use as an amplifier. It is suitable only for indoor installation.
Any other use, not mentioned under intended use, is regarded as non-intended and incorrect use.
Text Conventions
Throughout the user manual the following text conventions are used:
●Buttons: All buttons are in bold lettering, for example “Press the UP/DOWN buttons”
●References: References to chapters and parts of the device are in bold lettering, for example:
“Refer to 2. Safety”, “press the power switch (03)”
●0–255: Defines a range of values
●Notes: Note: (in bold lettering) is followed by useful information or tips

4
CA-4150
Product code: D4512
Symbols and Signal Words
Safety notes and warnings are indicated throughout the user manual by safety signs.
Always follow the instructions provided in this user manual.
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury.
WARNING
Indicates an imminently hazardous situation which, if not avoided, could result
in death or serious injury.
CAUTION
Indicates a potentially hazardous situation, which, if not avoided, may result in
minor or moderate injury.
Attention
Indicates important information for the correct operation and use of the
product.
Important
Read and observe the instructions in this document.
Electrical hazard
Provides important information about the disposal of this product.
Symbols on the Information Label
This product is provided with an information label. The information label is located on the bottom plate of
the device.
The information label contains the following symbols:
This device is designed for indoor use.
This device falls under IEC protection class I.
This device shall not be treated as household waste.
Caution: Risk of electric shock. Disconnect input power before opening.
Warning: This appliance must be earthed.
2. Safety
Important
Read and follow the instructions in this user manual before installing, operating or
servicing this product.
The manufacturer will not accept liability for any resulting damages caused by the non-observance of
this manual.

5
CA-4150
Product code: D4512
Warnings and Safety Instructions
DANGER
Danger for children
For adult use only. The device must be installed beyond the reach of children.
●Do not leave various parts of the packaging (plastic bags, polystyrene foam, nails, etc.) within
children’s reach. Packaging material is a potential source of danger for children.
DANGER
Electric shock caused by short-circuit
This device falls under IEC protection class I.
●Make sure that the device is electrically connected to ground (earth). Connect the device only to a
socket-outlet with ground (earth) connection.
●Do not cover the ground (earth) connection.
●Do not bypass the thermostatic switch or fuses.
●For replacement use fuses of the same type and rating only.
●Do not let the power cable come into contact with other cables. Handle the power cable and all
connections with the mains with caution.
●Do not modify, bend, mechanically strain, put pressure on, pull or heat up the power cable.
●Make sure that the power cable is not crimped or damaged. Examine the power cable periodically
for any defects.
●Do not immerse the device in water or other liquids. Do not install the device in a location where
flooding may occur.
●Do not use the device during thunderstorms. Disconnect the device from the electrical power supply
immediately.
WARNING
Electric shock caused by dangerous voltage inside
There are areas within the device where dangerous touch voltage may be present.
●Do not open the device or remove any covers.
●Do not operate the device if the covers are open.
●Disconnect the device from electrical power supply before service and maintenance, and when the
device is not in use.
Attention
Power supply
●Before connecting the device to the power supply, make sure that the current, voltage and
frequency match the input voltage, current and frequency specified on the information label on the
device.
●Make sure that the cross-sectional area of the extension cords and power cables is sufficient for the
required power consumption of the device.

6
CA-4150
Product code: D4512
Attention
General safety
●Do not block the ventilation openings. Without proper heat dissipation and air circulation, the
internal components may overheat. This can result in product damage.
●Do not shake the device. Avoid brute force when installing or operating the device.
●If the device is dropped or struck, disconnect the device from the electrical power supply
immediately.
●If the device is exposed to extreme temperature variations (e.g. after transportation), do not switch it
on immediately. Let the device reach room temperature before switching it on, otherwise it may be
damaged by the formed condensation.
●If the device fails to work properly, discontinue the use immediately.
Attention
This device shall be used only for the purposes it is designed for.
This device is designed to be used as an amplifier. Any incorrect use may lead to hazardous situations
and result in injuries and material damage.
This device does not contain user-serviceable parts. Unauthorized modifications to the device will render
the warranty void. Such modifications may result in injuries and material damage.
Attention
Do not expose the device to conditions that exceed the rated IP class conditions.
This device is IP20 rated. IP (Ingress Protection) 20 class provides protection against solid objects greater
than 12 mm, such as fingers, and no protection against harmful ingress of water.
Requirements for the User
This product may be used by ordinary persons. Maintenance and installation may be carried by ordinary
persons. Service shall be carried out only by instructed or skilled persons. Contact your Highlite
International dealer for more information.
Instructed persons have been instructed and trained by a skilled person, or are supervised by a skilled
person, for specific tasks and work activities associated with the service of this product, so that they can
identify risks and take precautions to avoid them.
Skilled persons have training or experience, which enables them to recognize risks and to avoid hazards
associated with the service of this product.
Ordinary persons are all persons other than instructed persons and skilled persons. Ordinary persons
include not only users of the product but also any other persons that may have access to the device or
who may be in the vicinity of the device.

7
CA-4150
Product code: D4512
3. Description of the Device
The CA-4150 is a 4 x 150 W D-class amplifier with SMPS and with a configurable built-in crossover. It can be
installed in a standard 19-inch rack.
Front View
Fig. 02
01) Power switch
02) Power LED indicator (Blue)
03) PROT/CLIP/SIGNAL LED indicators (CH A/B)
04) PROT/CLIP/SIGNAL LED indicators (CH C/D)
05) Ventilation openings
06) Gain controls (CH C/D)
07) Gain controls (CH A/B)
Back View
Fig. 03
08) 2-pin terminal CH A speaker connector OUT
09) 2-pin terminal CH B speaker connector OUT
10) 2-pin terminal CH C speaker connector OUT
11) 2-pin terminal CH D speaker connector OUT
12) IEC power connector IN
13) Fuse T5AL/250 V
14) Ventilation openings
15) Mode selector (DIP switches)
16) 3 x cutoff frequency selectors (CH A/B, SUB)
17) 2 x 6-pin terminal balanced signal connectors IN

8
CA-4150
Product code: D4512
Product Specifications
Model:
CA-4150
Electrical:
Input voltage:
220–240 V AC, 50 Hz
Power consumption:
636 W
SMPS:
Yes
Fuse:
T5AL/250 V
Outputs:
2 Ω stable:
Yes
Output power (8 Ω @ 1 kHz):
90 W (per channel)
Output power (4 Ω @ 1 kHz):
150 W (per channel)
Output power (2 Ω @ 1 kHz):
230 W (per channel)
Bridge output power (8 Ω @ 1 kHz):
190 W
Bridge output power (4 Ω @ 1 kHz):
275 W
Output power (8 Ω @ 20 Hz > 20 kHz):
90 W (per channel)
Output power (4 Ω @ 20 Hz > 20 kHz):
150 W (per channel)
Output power (2 Ω @ 20 Hz > 20 kHz):
230 W (per channel)
Bridge output power (8 Ω @ 20 Hz > 20 kHz):
190 W
Bridge output power (4 Ω @ 20 Hz > 20 kHz):
275 W
Output channels:
4
Output gain:
28 dB
Output mode:
4-channel, Bridge, Stereo
Output impedance:
Stereo: min. 4 Ω, Bridge: 8 Ω
Inputs:
Mono inputs:
4
Mono input impedance
20000 Ω
Mono unbalanced input sensitivity:
1 dBV
Product properties:
Electronic protection:
Clip limiter (fixed), DC voltage, Overheat, Overload,
Short circuit, Softstart, Thermal
LED indicators:
Clip, Power, Protect, Signal
Flight case size:
19”
Audio Specifications:
THD level:
< 0,1 %
Signal-to-noise ratio:
> 96 dB
Frequency response:
20–20000 Hz
Slew rate:
15 V/μs
Amplifier technology:
Class D
Cutoff frequency:
50–250 Hz
Damping factor:
180:1
Crosstalk:
70 dBu
Sound Editing:
Crossover filter types:
Built-in crossover
Physical:
Dimensions:
483 x 281 x 44,5 mm (L x W x H), 1 U
Weight:
4,85 kg

9
CA-4150
Product code: D4512
Connections:
Power connections:
IEC power connector IN
Mono input connections:
2 x 6-pin terminal connector
Output connections:
4 x 2-pin terminal upper connectors
4 x 2-pin terminal lower connectors
Construction:
Cooling:
Radial fan
Housing:
Metal
Color:
Black
IP rating:
IP20
Thermal:
Max. ambient temperature ta:
From -20 to 50 °C
Dimensions
Fig. 04
4. Installation
Safety Instructions for Installation
Attention
Make sure there is enough space for ventilation around the device.
●Do not block the ventilation openings. Without proper heat dissipation and air circulation, the
internal components may overheat. This can result in product damage.
●Do not install near equipment that produces heat.
Installation Site Requirements
●The device must be installed only indoors.
●The device can be placed on a flat surface or mounted in a standard 19-inch rack.
●The device must be installed away from heating sources.
●The maximum ambient temperature ta= 50 °C must never be exceeded.
●The relative humidity must not exceed 50 % with an ambient temperature of 50 °C.

10
CA-4150
Product code: D4512
Rack Mounting
The device can be mounted in a standard 19-inch rack. The device requires 1 rack unit (U) of space,
which is 44,5 mm high.
Make sure that the rack is sufficiently secured to prevent it from becoming unstable or falling over.
To mount the device in a two-post rack, follow the steps below:
01) Insert 4 cage nuts in the openings on the rack posts where you want to mount the device.
02) Position the device in front of the rack posts so that the 4 mounting openings on the flanges face the
openings on the rack posts with cage nuts.
03) Using a screwdriver, mount the device to the rack posts with 4 screws.
Connecting to Power Supply
DANGER
Electric shock caused by short-circuit
The device accepts AC mains power at 220–240 V and 50 Hz. Do not supply power at any other voltage
or frequency to the device.
This device falls under IEC protection class I. Make sure that the device is always electrically connected
to the ground (earth).
Before connecting the device to the socket-outlet:
●Make sure that the power supply matches the input voltage specified on the information label on
the device.
●Make sure that the socket-outlet has ground (earth) connection.
Connect the device to the socket-outlet with the power plug.
5. Setup and Operation
Warnings and Precautions
Attention
Connect all cables before supplying power.
Disconnect power supply before connecting or disconnecting cables.
For more information about the control modes, refer to 5.6. Setup Examples on pages 11–19.
Attention
This device must be used only for the purposes it is designed for.
This device is intended for use as an amplifier. It is suitable only for indoor installation. It is not suitable for
households.
Any other use, not mentioned under intended use, is regarded as non-intended and incorrect use.

11
CA-4150
Product code: D4512
Attention
Power supply
Before connecting the device to the power supply, make sure that the current, voltage and frequency
match the input voltage, current and frequency specified on the information label on the device.
Turning On/Off
The device has a power switch.
●Set the power switch (01) to ON position to turn on the device.
●Set the power switch (01)to OFF position to turn off the device.
Make sure that the device is turned off with the power switch (01) when the device is not in use.
Setting Gain
You can set gain for the channels A–D.
Turn the gain controls (CH C/D) (06) and gain controls (CH A/B) (07) to set the gain for each of the 4
channels (A–D). The adjustment range is from -∞ to +10.
5.4. LED Statuses
There are the following LED indicators: power LED indicator (Blue) (02),PROT/CLIP/SIGNAL LED indicators
(CH A/B) (03) and PROT/CLIP/SIGNAL LED indicators (CH C/D) (04). The LED indicators have the following
functions:
●POWER: When the LED is blue, the device is turned on.
●PROT: When the LED is red, the amplifier is operating at its limits. Turn off the device and identify the
problem. Decrease the source signal level and improve air circulation in the room where the device
is installed.
●CLIP: When the LED is red, it indicates sound distortion. Decrease the source signal level until the LED
turns off.
●SIGNAL: When the LED is green, the device is operating correctly.
Setting Cutoff Frequency
You can set cutoff frequency for hi-pass (CH A and CH B) and low-pass (SUB) filters.
Turn the 3 cutoff frequency selectors (CH A/B, SUB) (16) to set the cutoff frequency. The adjustment range
is 50–250 Hz.
Setup Examples
Connect audio devices to the audio outputs and inputs.
●The device has the following audio outputs: 2-pin terminal CH A speaker connector OUT (08), 2-pin
terminal CH B speaker connector OUT (09), 2-pin terminal CH C speaker connector OUT (10), 2-pin
terminal CH D speaker connector OUT (11).
●The device has the following audio inputs: 2 x 6-pin terminal balanced signal connectors IN (17).
Note:
To avoid interference, turn the CA-4150 off when connecting devices.
Connect speakers to the 2-pin terminal CH A–D speaker connectors OUT (08/09/10/11). The upper and
lower output connectors have the same function.

12
CA-4150
Product code: D4512
Connect the source signal to the 6-pin terminal balanced signal connectors IN (17). You can connect up
to 4 source signals (A–D).
Select operation modes with the mode selector (DIP switches) (15). There are 9 operation modes. To
select operation modes, move the DIP switches of the mode selector (DIP switches) (15) to the correct
positions. See the table below.
Operation
Mode
DIP switches
Description
#1
#2
#3
MT
1
OFF
OFF
OFF
OFF
Ch A/B/C/D –all stereo
2
ON
OFF
OFF
OFF
Ch A/B/C/D –all parallel
3
OFF
ON
OFF
OFF
Ch A/B –bridge, Ch C/D –bridge
4
ON
ON
OFF
OFF
Ch A/B –parallel, Ch C/D –parallel
5
OFF
OFF
ON
OFF
Ch A/B –stereo, Ch C/D –bridge (full range)
6
ON
OFF
ON
OFF
Ch A/B –parallel, Ch C/D –bridge (full range)
7
OFF
ON
ON
OFF
Ch A/B –stereo, SUB (Ch C/D –bridge, Input = Ch C)
8
ON
ON
ON
OFF
Ch A/B –stereo, SUB (Ch C/D –bridge, Input = Ch A+B)
9
–
–
–
ON
Mute
Mode 1 –Ch A/B/C/D –All Stereo
Fig. 05

13
CA-4150
Product code: D4512
Mode 2 –Ch A/B/C/D –All Parallel
Fig. 06

14
CA-4150
Product code: D4512
Mode 3 –Ch A/B –Bridge, Ch C/D –Bridge
Fig. 07

15
CA-4150
Product code: D4512
Mode 4 –Ch A/B –Parallel, Ch C/D –Parallel
Fig. 08

16
CA-4150
Product code: D4512
Mode 5 –Ch A/B –Stereo, Ch C/D –Bridge (Full Range)
Fig. 09

17
CA-4150
Product code: D4512
Mode 6 –Ch A/B –Parallel, Ch C/D –Bridge (Full Range)
Fig. 10

18
CA-4150
Product code: D4512
Mode 7 –Ch A/B –Stereo, Sub (Ch C/D –Bridge, Input = Ch C)
Fig. 11

19
CA-4150
Product code: D4512
Mode 8 –Ch A/B –Stereo, Sub (Ch C/D –Bridge, Input = Ch A+B)
Fig. 12