1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Diamond Audio D365C 6.5-inch 3-Way Component Speaker System. This system is designed to deliver high-quality audio performance in automotive environments. Please read this manual thoroughly before installation and use to ensure proper function and longevity of your speakers.
The D365C system features a 6.5-inch woofer, a 3.5-inch midrange speaker, and a 1-inch tweeter, providing a balanced and detailed sound reproduction across the audio spectrum. The components are built with a high-strength stamped steel frame for durability.
2. Contenu de la boîte
Upon opening your Diamond Audio D365C package, verify that all components are present:
- Deux haut-parleurs de graves de 6.5 pouces
- Two 3.5-inch Midrange Speakers
- Two 1-inch Tweeters
- Deux réseaux de croisement passifs
- Matériel de montage (vis, clips, etc.)
- Speaker Grilles (if included)
- Faisceaux de câblage
If any items are missing or damaged, please contact your authorized Diamond Audio dealer immediately.
3. Produit terminéview
Cette section fournit un aperçu visuel et descriptif deview of the components included in your D365C speaker system.

Figure 3.1 : The complete Diamond Audio D365C 3-Way Component Speaker System, showing woofers, midrange speakers, tweeters, and crossover networks.

Figure 3.2 : Devant view of the 6.5-inch woofer, responsible for low-frequency sound reproduction.

Figure 3.3 : Arrière view of the 6.5-inch woofer, showing the magnet structure and terminals.

Figure 3.4 : Devant view of the 3.5-inch midrange speaker, designed for clear vocal and instrumental reproduction.

Figure 3.5 : Arrière view of the 3.5-inch midrange speaker, showing its compact design and terminals.

Figure 3.6 : The 1-inch tweeters, responsible for reproducing high-frequency sounds with clarity.

Figure 3.7 : The passive crossover network, which separates the audio signal into appropriate frequency ranges for each speaker component.
Vidéo 3.1: A detailed look at the construction and features of a 6.5-inch speaker, highlighting its design and specifications. This video provides additional visual information about the speaker's physical characteristics.
4. Configuration et installation
Professional installation is recommended for optimal performance and to prevent damage to your vehicle or the speaker system. If you choose to install the system yourself, please follow these general guidelines:
4.1 Précautions de sécurité
- Débranchez la batterie du véhicule avant d'entreprendre tout travail électrique.
- Portez l'équipement de sécurité approprié, notamment une protection oculaire.
- Veillez à ce que tous les câbles soient correctement isolés et fixés afin d'éviter les courts-circuits.
- Ne pas installer les haut-parleurs à un endroit où ils pourraient obstruer les airbags ou les commandes du véhicule.
4.2 Mounting the Woofers
- Select a suitable mounting location in your vehicle, typically door panels or kick panels, ensuring adequate depth and clearance.
- Use the provided template (if applicable) to mark the cutout area and screw holes.
- Carefully cut the opening and drill pilot holes for the mounting screws.
- Connect the woofer wires to the appropriate terminals on the passive crossover network.
- Secure the woofer in place using the supplied screws.
4.3 Mounting the Midrange Speakers
Midrange speakers should be mounted in a location that provides good sound staging, often in the dashboard, A-pillars, or custom pods. Follow similar steps as for the woofers, ensuring proper clearance and secure mounting.
4.4 Mounting the Tweeters
Tweeters are crucial for high-frequency detail and imaging. They can be flush-mounted, surface-mounted, or angle-mounted depending on your vehicle and desired sound. Experiment with placement to achieve optimal sound. Connect the tweeter wires to the appropriate terminals on the passive crossover network.
4.5 Wiring the Crossover Network
The passive crossover network is essential for directing the correct frequencies to each speaker. Refer to the wiring diagram provided with your product for specific connections. Generally:
- Connect the input terminals of the crossover to your ampsorties haut-parleurs de l'amplificateur.
- Connect the woofer output terminals of the crossover to the 6.5-inch woofers.
- Connect the midrange output terminals of the crossover to the 3.5-inch midrange speakers.
- Connect the tweeter output terminals of the crossover to the 1-inch tweeters.
Ensure correct polarity (+ to + and - to -) for all connections to avoid phase issues that can negatively impact sound quality.
5. Utilisation de votre système de haut-parleurs
Once installed, your Diamond Audio D365C speaker system is ready for use. Follow these tips for optimal performance:
- Mise sous tension initiale : After installation, reconnect the vehicle's battery. Turn on your audio system at a low volume level to confirm all speakers are functioning correctly.
- Période de rodage : Allow a break-in period of approximately 20-30 hours of normal listening before playing the speakers at high volumes. This allows the speaker components to loosen up and achieve their optimal performance characteristics.
- AmpParamètres du lificateur : Ajustez votre amplifier's gain, crossover points, and equalization settings to match the D365C's specifications and your personal listening preferences. Avoid excessive bass boost or treble boost that could distort the sound or damage the speakers.
- Niveaux d'écoute : While your speakers are capable of high output, prolonged listening at extremely high volumes can cause hearing damage and may reduce the lifespan of the speakers.
6. Entretien
Your Diamond Audio D365C speakers require minimal maintenance to ensure long-lasting performance:
- Nettoyage: Essuyez délicatement les grilles et les contours des haut-parleurs avec un chiffon doux et sec.amp chiffon pour enlever la poussière et la saleté. Évitez d'utiliser des produits chimiques agressifs ou des nettoyants abrasifs.
- Inspection: Periodically inspect the speaker cones and surrounds for any signs of damage or wear. Ensure all mounting screws remain tight.
- Facteurs environnementaux : Protect your speakers from extreme temperatures, direct sunlight, and excessive moisture, which can degrade materials over time.
7. Dépannage
If you experience issues with your speaker system, consult the following table before contacting support:
| Problème | Cause possible | Solution |
|---|---|---|
| Aucun son provenant d'un ou plusieurs haut-parleurs | Loose or incorrect wiring connections; Blown fuse in amplifier; Damaged speaker or crossover. | Check all wiring connections for tightness and correct polarity. Inspect amplifier fuses. Test individual speakers if possible. |
| Son déformé | Amplifier gain set too high; Incorrect crossover settings; Damaged speaker; Poor power supply. | Réduire amplifier gain. Verify crossover settings. Check speaker for physical damage. Ensure adequate power and ground connections. |
| Son faible ou déséquilibré | Incorrect wiring polarity; Improper speaker placement; Amplifier balance/fader settings. | Verify all speaker polarities. Adjust amplifier balance/fader. Consider speaker placement adjustments. |
| Son intermittent | Loose wiring; Faulty component; Overheating amplifier. | Check all connections. Allow amplifier to cool down. Inspect for damaged wires or components. |
8. Spécifications
The following are the technical specifications for the Diamond Audio D365C 3-Way Component Speaker System:
- Nom du modèle : D365C
- Type de haut-parleur : Composant, tweeter
- Utilisations recommandées : Audio de voiture
- Configuration du canal de son surround : 3.0
- Couleur: Noir
- Dimensions du produit : 18"P x 12"L x 8"H
- Impédance: 4 Ohms
- Diamètre du haut-parleur : 6.5 pouces
- Diamètre du tweeter : 1 pouces
- Type de pilote audio : Pilote dynamique
- Puissance de sortie maximale du haut-parleur : 140 watts
- Mode de sortie audio : Stéréo
- Type de montage : Plafonnier
- Fabricant: Diamant Audio
- Numéro de modèle de l'article : D365C
- Code à barres : 847169020674
9. Informations sur la garantie
Diamond Audio products are designed and manufactured to the highest quality standards. This product is covered by a limited warranty against defects in materials and workmanship under normal use. The specific terms and duration of the warranty may vary by region and retailer. Please retain your proof of purchase for warranty claims.
For detailed warranty information, please refer to the warranty card included with your product or visit the official Diamond Audio website.
10. Assistance clientèle
If you require further assistance or have questions not covered in this manual, please contact Diamond Audio customer support or your authorized dealer.
- Support en ligne: Visitez le Diamond Audio Store on Amazon Pour obtenir des informations sur les produits et consulter la FAQ.
- Localisateur de concessionnaires: Find an authorized Diamond Audio dealer near you for professional installation and service.





