1. Inngangur
The DS18 ZR8.4D Elite-Z is an 8-inch car audio subwoofer designed to deliver powerful and clear bass. This manual provides essential information for proper installation, operation, and maintenance of your subwoofer. Please read these instructions carefully before attempting installation or use.

Mynd 1.1: Framan view of the DS18 ZR8.4D Elite-Z 8-inch subwoofer, highlighting its design and key features like the large foam surround and PPI dust cap.
2. Vörueiginleikar
- Stór froðuumgjörð: Provides excellent excursion (Xmax) for deep bass and maintains precise cone control, even at high power levels.
- Meðhöndlun með miklum krafti: Rated for 450W RMS and 900W Max power, ensuring robust performance.
- 2-Inch Aluminum Voice Coil: A high-strength voice coil designed for durability and efficient power transfer.
- Tvöföld 4-Ohm raddspóla: Bjóðar upp á sveigjanlega raflögnunarmöguleika til að passa við ýmsa amplifier impedances.
- Durable StampKörfu: Features a robust steel basket with DS18 logos, providing structural integrity and a clean aesthetic.
- Versatile Enclosure Compatibility: Optimized for use in both sealed and ported enclosures, allowing for diverse installation options.
- Non-Pressed Paper Cone with PPI Dust Cap: Delivers smooth and crisp bass reproduction.

Mynd 2.1: Ítarlegt view of the subwoofer, illustrating the 2-inch aluminum voice coil, mounting depth, and magnet weight specifications.
3. Tæknilýsing
| Parameter | Gildi |
|---|---|
| Nafnþvermál | 8 tommur |
| Nafnviðnám | 4+4 OHMS (Dual Voice Coil) |
| RMS Power Handling | 450W |
| MAX Power Handling | 900W |
| Næmi (1w/1m) | 82 dB |
| Tíðni svörun | 33Hz - 200Hz |
| Mælt er með Lo Pass Crossover | 120 Hz |
| Þvermál raddspólu | 2 tommur / 50.8 mm |
| VC Fyrrum efni | Ál |
| Vinda efni | Kopar |
| Keiluefni | Ópressaður pappír |
| Efni fyrir rykhettu | PP |
| Umhverfis efni | Froða |
| Körfuefni | Stál |
| Segulefni | Ferrít |
| Segulþyngd | 55 únsur |
| Heildarþvermál | 8.42 tommur / 214 mm |
| Heildardýpt | 5.3 tommur / 134 mm |
| Skurðarskurður fyrir framan festingu | 7.24 tommur / 184 mm |
| Uppsetningardýpt | 4.4 tommur / 111.4 mm |
| Þvermál mótor | 5.7 tommur / 145 mm |
| Þyngd hlutar | 10.23 pund (4.65 kíló) |

Image 3.1: Dimensional drawing of the DS18 ZR8.4D Elite-Z subwoofer, showing overall depth and diameter measurements.
4. Hvað er í kassanum
- 1x DS18 ZR8.4D Elite-Z 8-Inch Subwoofer
5. Öryggisupplýsingar
Fylgið alltaf eftirfarandi öryggisráðstöfunum við uppsetningu og notkun:
- Aftengdu neikvæða pól rafgeymis ökutækisins áður en rafmagnsvinna hefst til að koma í veg fyrir skammhlaup.
- Gakktu úr skugga um að allar raflagnir séu rétt lagðar og festar til að koma í veg fyrir skemmdir frá hreyfanlegum hlutum eða beittum brúnum.
- Use appropriate gauge wiring for power, ground, and speaker connections to handle the subwoofer's power requirements.
- Avoid installing the subwoofer in locations that obstruct vehicle operation or safety features.
- Langvarandi útsetning fyrir miklum hljóðþrýstingi getur valdið varanlegum heyrnarskaða. Gætið varúðar við stillingu hljóðstyrks.
- Ef þú ert óviss um einhvern hluta uppsetningarferlisins skaltu leita til fagmanns sem sérhæfir sig í bílhljóðtækni.
6. Uppsetning og uppsetning
6.1 Val á girðingu
The DS18 ZR8.4D subwoofer performs well in both sealed and ported enclosures. The choice of enclosure will affect the subwoofer's sound characteristics. Sealed enclosures typically provide tighter, more accurate bass, while ported enclosures can offer louder, deeper bass at specific frequencies. Consult with a car audio specialist or use enclosure design software for optimal results based on your preferences.

Image 6.1: An array of DS18 subwoofers, emphasizing their suitability for both sealed and ported box applications.
6.2 Uppsetning
Ensure the mounting surface is rigid and free from obstructions. Use the provided mounting dimensions:
- Skurðarskurður að framan: 7.24 tommur / 184 mm
- Festingardýpt: 4.4 tommur / 111.4 mm
Pre-drill pilot holes for mounting screws to prevent damage to the enclosure material.
6.3 Wiring the Subwoofer (Dual 4-Ohm Voice Coils)
The ZR8.4D features dual 4-ohm voice coils, offering flexibility in wiring configurations to achieve different impedance loads for your ampbjörgunaraðili. Gakktu alltaf úr skugga um að ampLifið er stöðugt við valda impedans.
6.3.1 Series Wiring (8-Ohm Load)
To achieve an 8-ohm load, connect the positive terminal of one voice coil to the negative terminal of the other voice coil. Then, connect the remaining positive terminal to the ampjákvæða úttakið frá rafleiðaranum og eftirstandandi neikvæða tengipunktinn við ampNeikvæð úttak liferans.
6.3.2 Parallel Wiring (2-Ohm Load)
To achieve a 2-ohm load, connect both positive terminals of the voice coils together, and connect both negative terminals of the voice coils together. Then, connect the combined positive terminals to the ampjákvæða úttakið frá rafleiðaranum og sameinuðu neikvæðu tengipunktarnir við ampNeikvæð úttak liferans.

Image 6.2: Close-up of the subwoofer's terminal, showing the direct copper 10-gauge wire connection points for voice coil wiring.
7. Notkunarleiðbeiningar
7.1 Innkeyrslutímabil
Allow a break-in period of approximately 10-20 hours of normal listening before operating the subwoofer at its maximum potential. This allows the suspension components (surround and spider) to loosen up and reach their optimal performance.
7.2 Amplifier Stillingar
- Ávinningsstilling: Stilltu ampaflgjafarastyrkur til að passa við útgangsmagntage höfuðeiningarinnar. Byrjaðu með lágmarksstyrk og aukið hann hægt og rólega þar til þú heyrir röskun, dragðu síðan aðeins úr.
- Lágtíðnisvíxl (LPF): Stilltu LPF á þinn amplifier to filter out high frequencies from the subwoofer. The recommended low-pass crossover frequency for the ZR8.4D is 120 Hz.
- Undirhljóðsía (HPF): Ef þinn amplifier has a subsonic filter, set it slightly below the tuning frequency of your ported enclosure (if applicable) or around 25-30 Hz for sealed enclosures to protect the subwoofer from over-excursion.
8. Viðhald
- Haldið keilunni og umgjörðinni á bassahátalaranum lausum við ryk og óhreinindi. Notið mjúkan, þurran klút til að þrífa.
- Athugið reglulega allar raflagnatengingar til að tryggja að þær séu öruggar og lausar við tæringu.
- Avoid exposing the subwoofer to extreme temperatures or direct sunlight for extended periods.
9. Bilanagreining
Ef þú lendir í vandræðum með bassahátalarann skaltu skoða eftirfarandi algengar úrræðaleitarskref:
- Ekkert hljóð:
- Check all power, ground, and remote turn-on connections to the amplíflegri.
- Staðfestu amplifier is receiving an audio signal from the head unit.
- Inspect subwoofer wiring for proper polarity and secure connections.
- Tryggðu að amplifier is powered on and not in protection mode.
- Bjagað hljóð:
- Dragðu úr amplifier gain setting.
- Check for proper crossover settings; ensure the subwoofer is not playing frequencies too high for its design.
- Verify the subwoofer is not over-driven by the amplíflegri.
- Skoðið keiluna og umgjörðina á bassahátalaranum til að sjá hvort einhverjar skemmdir eru á honum.
- Weak or Lack of Bass:
- Auka ampLifier öðlast smám saman.
- Check the phase setting on your amplyftara eða höfuðeiningu.
- Ensure the low-pass filter is set correctly (e.g., 120 Hz).
- Verify the enclosure is properly sealed (if applicable) and free from air leaks.
10. Ábyrgð og stuðningur
The DS18 ZR8.4D Elite-Z subwoofer comes with a limited warranty. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or visit the official DS18 website. For technical support, troubleshooting assistance beyond this manual, or warranty claims, please contact DS18 customer service directly.
DS18 opinbert Websíða: www.ds18.com





