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Pure-18S Passive 18” Subwoofer 

Order code: D3744 

Connection Cables 

Take care of your cables, always holding them by the connectors and avoiding knots and twists when 
coiling them: This gives the advantage of increasing their life and reliability. Periodically check your 
cables. A great number of problems (faulty contacts, ground hum, discharges, etc.) are caused entirely 
by using unsuitable or faulty cables. 
 
Speakon 

 

Input is a Speakon connector for connecting a speaker-level signal. 
Output is a Speakon connector paralleled with the input connector, for daisy-chaining speakers. 
 
Wiring: 
Pin 1+ = Signal (+) 
Pin 1- = Ground (-) 
 
 

Maintenance 

The Pure-18S requires almost no maintenance. However, you should keep the unit clean. Disconnect the 
mains power supply, and then wipe the cover with a damp cloth. Do not immerse in liquid. Do not use 
alcohol or solvents. 
Keep connections clean. Disconnect electric power, and then wipe the connections with a damp cloth. 
Make sure connections are thoroughly dry before linking equipment or supplying electric power. 
 
 

Troubleshooting 

 

No Sound 

Always check if all the cables and cords are connected. Always turn off power to the area before 
checking the wires, to prevent electric shock. 
If everything works properly and there is still no sound, revisit the manufacturer’s instructions to make sure 
they were followed during installation. If everything was installed correctly and there is still no sound, you 
may want to consider bringing in a professional to take a look at your speaker. 
 
If the speakers do not operate properly, refer servicing to a technician. 
Suspect two potential problem areas as: the power supply and the speakers. 
01)

 

Power supply. Check if the unit is plugged into an appropriate power supply. 

02)

 

The speakers. Return the Pure-18S to your DAP Audio dealer. 

03)

 

If all appears to be O.K., plug the unit in again. 

04)

 

If you are unable to determine the cause of the problem, do not open the Pure-18S, as this may 
damage the unit and the warranty will become void. 

05)

 

Return the device to your DAP Audio dealer. 

 

Sound Warping 

If the sound coming out of your speaker is loud enough, but seems to be warped or distorted, your treble 
or bass levels may need to be adjusted. 
If there are not many pieces of furniture in the room and the floor has no carpet or rug, then you will most 
likely have to set your treble to minus. With very little in the room to absorb the sound, too much treble 
can make the sound bounce off of fixtures in the room, making it tinny sounding. 
With the bass, if the speaker is too close to a wall and is not aimed properly, then you will need to set the 
bass to minus, to stop the low tones from bouncing off of the walls or large pieces of furniture. 

 

Summary of Contents for D3744

Page 1: ...Pure 18S Passive 18 Subwoofer V1 Order code D3744 MANUAL Highlite International B V Vestastraat 2 6468 EX Kerkrade the Netherlands ENGLISH...

Page 2: ...e 4 Claims 4 Description of the device 5 Overview 6 Back 6 Installation 7 Setup and Operation 8 Connection Example 1 2 x Pure 10 Pure 12 Pure 15 and 2 x Pure 15S Pure 18S 8 Connection Example 2 2 x Pu...

Page 3: ...ual Safety Instructions Every person involved with the installation operation and maintenance of this system has to be qualified follow the instructions of this manual Before your initial start up ple...

Page 4: ...e to time Make sure that the signals into the mixer are balanced otherwise hum could be created Make sure that there is sufficient room on all sides of the system for air circulation Make sure you do...

Page 5: ...and a brief description of the cause for the return Be sure to properly pack fixture any shipping damage resulting from inadequate packaging is the customer s responsibility Highlite reserves the righ...

Page 6: ...ensions 600 x 520 x 655 mm LxWxH Weight 36 66 kg Optional accessories D3731 Pure 18 A S Castor board D3740 Pure 10 Passive 10 Full Range D3741 Pure 12 Passive 12 Full Range D3742 Pure 15 Passive 15 Fu...

Page 7: ...D3744 Overview Fig 01 Back Fig 02 01 Speakon NL4 MID HIGH OUT 02 Speakon NL4 IN 03 Speakon NL4 OUT 04 Phase switch Move the switch to select NORMAL or INVERTED 05 Low pass filter switch ON OFF Move th...

Page 8: ...ure 18S Check if all foam and plastic padding is removed Connect all cables Do not supply power before the whole system is set up and connected properly Always disconnect from electric mains power sup...

Page 9: ...sa Make your initial connections with all the equipment powered off and ensure that all the main volume controls are turned completely to the minimum Follow the steps below 01 Connect the speakers to...

Page 10: ...9 Pure 18S Passive 18 Subwoofer Order code D3744 Connection Example 2 2 x Pure 10 Pure 12 Pure 15 and 4 x Pure 15S Pure 18S Fig 05...

Page 11: ...ill no sound revisit the manufacturer s instructions to make sure they were followed during installation If everything was installed correctly and there is still no sound you may want to consider brin...

Page 12: ...00 Hz Speaker sensitivity 104 dB W m Max SPL 1 m 133 dB Speaker impedance 8 Crossover frequency 125 Hz 24 dB Oct BW Recommended HPF 32 Hz BW 24 Audio connector Speakon NL4 IN OUT MID HIGH OUT Housing...

Page 13: ...12 Pure 18S Passive 18 Subwoofer Order code D3744 Notes...

Page 14: ...13 Pure 18S Passive 18 Subwoofer Order code D3744...

Page 15: ...14 Pure 18S Passive 18 Subwoofer Order code D3744...

Page 16: ...2020 DAP Audio...

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