DS18 SQ82 8 SUBWOOFER WITH ALUMINUM ENCLOSURE Owner’s Manual
- June 5, 2024
- DS18
Table of Contents
DS18 SQ82 8 SUBWOOFER WITH ALUMINUM ENCLOSURE
Overview
FEATURES
- Very Strong Aluminum Box for better sound, heat dissipation and lightweight construction.
- Passive Radiator Design for deeper and louder sound output in a smaller enclosure.
Professional installation by an authorized DS18 dealer is highly recommended. Otherwise, the performance of your new gear may not be satisfactory. In the event that you decide to do your own installation, please read, and follow this manual carefully. Failure to do so may compromise the integrity of this product, and your automobile, and possibly void the product warranty. Use this Subwoofer Box with an external Monoblock subwoofer amplifier that can handle 2 OHMS load impedance and a maximum of 300W RMS continuous power, otherwise, the amplifier or the Subwoofer can be damaged. In case you need to install an amplifier please refer to the amplifier’s instruction manual to perform the installation of the amplifier before using this Subwoofer Box. Do Not Connect this directly to the factory radio or aftermarket radio speaker output. This will not be enough power for the subwoofers and could be bad for the radio’s amplifier if is not 2 OHMS stable. Secure the subwoofer box with a strap or bracket to screw it down in case this box is loose on your trunk or an SUV cargo area to avoid this moving around which will damage the Subwoofer or box itself. In case of accelerating or hard braking this will reduce the possibility of movement! Major injuries may occur in case of an accident if this is not secured properly.
If you already have installed the amplifier then follow these simple steps:
- Connect the subwoofer box to the amplifier using a minimum 12Ga speaker wire and make sure the polarity (+) and (-) is correct, otherwise the sound will be affected.
- Now you are ready to play it for the first time. It is best to leave the gain all the way down at the start. Now, start with the head until volume low and work your way up.
- Now you can tune the amp. We recommend using the Low Pass Filter at 120Hz or lower depending on your system. Take your time and make only one adjustment at a time. It may take some time to get the system fully adjusted. During this time the amp is drawing current from the battery. You should check the battery voltage from time to time and re-charge it if it gets low.
That’s it! You are done Now have fun!!
GENERAL SPECIFICATIONS
- Speaker Type / Size ……………………………………………8”+ 8“ / 203.2 mm + 203.2 mm Passive
- Total Impedance………………………………………………………………………………………………… 4 + 4 OHMS
- Total RMS Power Handling………………………………………………………………………………………… 300 W
- Total MAX Power Handling………………………………………………………………………………………. 1200 W
- Sensitivity (1w/1m) ……………………………………………………………………………………………………..83 dB
- Frequency Response …………………………………………………………………………………………. 30 – 350 Hz
SPEAKER SPECIFICATIONS
- Voice Coil Diameter……………………………………………………………………………………. 1.52” / 38.6 mm
- Voice Coil Former Materia …………………………………………………………………………………… Aluminum
- Winding Material………………………………………………………………………………………………………. Copper
- Cone Material…………………………………………………………………………………………Non-Pressed Paper
- Dust Cap Material……………………………………………………………………………………………………….. Paper
- Surround Material……………………………………………………………………………………………………..Rubber
- Basket Material …………………………………………………………………………………………………………….Steel
- Magnet Material…………………………………………………………………………………………………………Ferrite
- Magnet Weight………………………………………………………………………………………………..32 Oz / 914 g
BOX SPECIFICATIONS
- Internal Volume…………………………………………………………………………………………… 10.8 L / 0.38 ft3
- Box Tune……………………………………………………………………………………………………………………….50 Hz
- Load Configuration………………………………………………………………………………………………… Parallel In
- Box Type ……………………………………………………………………………………………Passive Active (Sealed)
- Box Material…………………………………………………………………………………………………………. Aluminum
- Finish Material………………………………………………………………………………………………….. Anodic Black
- -3 DB Dropping Point…………………………………………………………………………………………………….35 Hz
MEASUREMENT
- Overall Height……………………………………………………………………………………………………. 9”/ 230 mm
- Overall Width …………………………………………………………………………………………………….. 9”/ 230 mm
- Overall Depth ………………………………………………………………………………………………….12” / 304 mm
WIRING DIAGRAM
Connect both coils together using the supplied Jumper. DO NOT use just one voice coil without using the other one.
if you will use a 2CH amplifier and connect each coil on each channel
separately, please make sure to remove the supplied jumpers on the connector,
or the amplifier will go into protection mode or get damaged.
TROUBLESHOOTING
If you experience operation or performance problems with this product, compare your installation with the electrical wiring diagram on the previous pages. If problems persist, read the following troubleshooting tops which may help eliminate the problems. It is best to set the amplifier’s input level control as low as possible. The best subjective signal-to-noise ratio is achieved in this matter, try to set the headunit as high as possible (without distortion) and the amp input level as low as possible.
Low output
Reset the level control. Check the crossover control settings.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>