1. Introduktion
The DS18 PRO-DR2 is a high-performance 2-inch titanium screw-on compression driver designed for professional audio applications. This manual provides essential information for the proper installation, operation, and maintenance of your PRO-DR2 driver to ensure optimal performance and longevity.

Image 1.1: The DS18 PRO-DR2 compression driver, highlighting its 2-inch titanium voice coil, 8 Ohm impedance, 400W RMS / 800W MAX power, 980Hz-20KHz frequency response, and 110dB sensitivity.
Nøglefunktioner:
- 2-inch Titanium Voice Coil: Ensures high-frequency reproduction with clarity and precision.
- Højeffekthåndtering: Rated at 400W RMS and 800W MAX power for robust performance.
- 8 ohm impedans: Compatible with a wide range of audio systems.
- 38 oz Ferrite Magnet: Provides strong magnetic flux for efficient sound production.
- Screw-On Design: Facilitates secure and straightforward mounting.
2. Opsætning og installation
2.1 Sikkerhedsforanstaltninger
- Always disconnect power from your audio system before installation.
- Brug passende sikkerhedsudstyr, herunder øjenbeskyttelse.
- Sørg for tilstrækkelig ventilation omkring føreren for at forhindre overophedning.
- Consult a professional installer if you are unsure about any steps.
2.2 Mounting the Driver
The PRO-DR2 features a screw-on throat for secure attachment to compatible horn flares or waveguides. Ensure the mounting surface is stable and free from obstructions.
- Align the driver's screw-on throat with the corresponding threads on your horn or waveguide.
- Carefully twist the driver clockwise until it is hand-tight. Do not overtighten, as this can damage the driver or horn.
- Ensure the driver is seated flush and securely.

Billede 2.1: Side view of the DS18 PRO-DR2, illustrating the screw-on throat for mounting.
2.3 Ledningsforbindelser
Connect the driver to your amplifier or crossover network. Pay close attention to polarity to ensure correct phase alignment with other speakers in your system.
- Identify the positive (+) and negative (-) terminals on the PRO-DR2 driver.
- Forbind den positive udgang fra din amplifier or crossover to the positive terminal of the driver.
- Tilslut den negative udgang fra din amplifier or crossover to the negative terminal of the driver.
- Sørg for, at alle forbindelser er sikre og fri for kortslutninger.

Billede 2.2: Bund view of the DS18 PRO-DR2, showing the input terminals for wiring connections.
2.4 Delefiltreindstillinger
A passive or active crossover is essential to protect the compression driver from low frequencies that can cause damage. Refer to your system's amplifier or crossover manual for specific settings.
- Set the high-pass filter (HPF) for the driver channel to at least 1.5 kHz (1500 Hz) with a slope of 12dB/octave or higher.
- Adjust the crossover point based on your specific system and listening preferences, ensuring the driver is not subjected to frequencies below its recommended range.
3. Betjeningsvejledning
3.1 Indledende opstart
After installation, perform a low-volume test to confirm proper functionality.
- Turn on your audio system with the volume set to minimum.
- Gradually increase the volume to a low listening level.
- Listen for clear, undistorted sound from the PRO-DR2 driver.
3.2 Gain and Level Adjustment
Korrekt gevinst staging is crucial to prevent distortion and maximize sound quality.
- Indstil amplifier gain for the driver channel according to the amplifier's instructions, typically by playing a test tone and adjusting until the clipping indicator just begins to flash, then backing off slightly.
- Avoid setting the gain too high, as this can lead to clipping and damage to the driver.
3.3 Avoiding Distortion
Distortion is a primary cause of driver failure. Always operate your system within its clean power limits.
- If you hear any harsh, crackling, or fuzzy sounds, immediately reduce the volume.
- Sørg for din amplifier is not clipping.
- Verify that your crossover settings are correct and protecting the driver from low frequencies.
4. Vedligeholdelse
The DS18 PRO-DR2 driver requires minimal maintenance to ensure long-term performance.
4.1 Rengøring
- Periodically wipe the exterior of the driver with a soft, dry cloth to remove dust and debris.
- Brug ikke skrappe kemikalier, opløsningsmidler eller slibende rengøringsmidler, da disse kan beskadige overfladen eller de indvendige komponenter.
- Avoid getting moisture into the driver's voice coil or terminals.
4.2 Eftersyn
- Kontrollér regelmæssigt alle ledningsforbindelser for at sikre, at de er fastgjorte og fri for korrosion.
- Inspect the mounting points for any signs of loosening or damage.
- Listen for any unusual noises during operation that might indicate a problem.
4.3 Opbevaring
If storing the driver for an extended period, keep it in a cool, dry place, away from direct sunlight and extreme temperatures. Use original packaging if available to protect it from physical damage.
5. Fejlfinding
If you experience issues with your PRO-DR2 driver, refer to the following troubleshooting guide:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| No sound from driver |
|
|
| Forvrænget eller hård lyd |
|
|
| Lav lydstyrke |
|
|
6. Specifikationer
Detailed technical specifications for the DS18 PRO-DR2 compression driver:
| Feature | Specifikation |
|---|---|
| Modelnummer | PRO-DR2 |
| Nominel impedans | 8 Ohm |
| RMS Power Handling | 400 watt |
| MAX Power Handling | 800 watt |
| Følsomhed (1W / 1m) | 110 dB |
| Frekvensrespons | 980 Hz - 20 kHz |
| Stemmespole størrelse | 2 tommer |
| Membranmateriale | Titanium |
| Magnetvægt | 38 oz (Ferrite) |
| Bolt Type | Skru ned |
| Samlet dybde | 3.07 tommer (78 mm) |
| Forbindelsesteknologi | Kablet |
| Indkapslingsmateriale | Titanium |
| Varens vægt | 38 ounce |
7. Garantioplysninger
The DS18 PRO-DR2 compression driver comes with a limited manufacturer's warranty. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for any warranty claims.
For specific details regarding warranty duration and terms, please refer to the warranty card included with your product or visit the official DS18 webwebsted.
8. Support
If you require further assistance or have questions not covered in this manual, please contact DS18 customer support.
- Webwebsted: www.ds18.com
- E-mail: Se DS18 webwebsted for kontakt-e-mail.
- Telefon: Se DS18 webhjemmeside for kontakttelefonnummer.
When contacting support, please have your product model (PRO-DR2) and purchase information readily available.