Alpine X-W12D4
Manuale utente del subwoofer Alpine X-W12D4 serie X da 12 pollici
Model: X-W12D4 | Brand: Alpine
1. Introduzione
The Alpine X-W12D4 X-Series 12-inch subwoofer is engineered to deliver powerful, precise bass as part of the Alpine ID (Image Defined) sound culture. This manual provides essential information for the proper installation, operation, and maintenance of your subwoofer, ensuring optimal performance and longevity.
The X-W12D4 features dual 4-ohm voice coils, a 24mm linear Xmax, and robust construction designed to move significant amounts of air with accuracy and control. It is an ideal match for high-power amplifiers, such as the Alpine X-A90M 900W mono amppiù vivace.
2. Informazioni sulla sicurezza
Please read all safety instructions carefully before installing and operating the subwoofer. Failure to follow these guidelines may result in injury or damage to the product or vehicle.
- Installazione professionale consigliata: Due to the complexity of car audio systems and high power requirements, professional installation is highly recommended.
- Gestione della potenza: Assicurati che amplifier's power output matches the subwoofer's RMS power handling (900W RMS). Overpowering or underpowering can lead to damage.
- Ventilazione: Assicurare una ventilazione adeguata attorno al subwoofer e amplifier per evitare il surriscaldamento.
- Cablaggio: Use appropriate gauge wiring for power, ground, and speaker connections. Incorrect wiring can cause electrical shorts or fire hazards.
- Montaggio sicuro: Always mount the subwoofer securely within its enclosure and the enclosure securely within the vehicle to prevent movement during driving.
- Avvertenza sulla Proposta 65: Questo prodotto può contenere sostanze chimiche note allo Stato della California come causa di cancro e difetti alla nascita o altri danni riproduttivi.
3. Contenuto della confezione
Verificare che tutti gli articoli siano presenti nel pacco:
- Alpine X-W12D4 12-inch Subwoofer
- Twist-lock Trim Ring
- Full Mesh Grill
4. Configurazione e installazione
Proper setup is crucial for optimal performance and longevity of your subwoofer.
4.1. Selezione del recinto
The X-W12D4 is designed to perform well in various enclosures. For best results, consider a custom-built sealed or ported enclosure tuned to the subwoofer's specifications. A common recommendation for a sealed enclosure is approximately 0.75 cubic feet.
4.2. Montaggio
The subwoofer requires a mounting depth of 7-1/4 inches. Ensure sufficient clearance behind the subwoofer for proper air circulation and to prevent contact with any obstructions.

Immagine: frontale e laterale view of the Alpine X-W12D4 subwoofer, showcasing the cone and surround, along with the robust basket design.
4.3. Wiring Dual Voice Coils
The X-W12D4 features dual 4-ohm voice coils, offering flexibility in wiring configurations to match your amprequisiti di impedenza del convertitore. Le configurazioni più comuni includono:
- Cablaggio in serie (8 ohm): Connect the positive terminal of VC1 to the negative terminal of VC2. The amplifier connects to the negative terminal of VC1 and the positive terminal of VC2. This results in a total impedance of 8 ohms.
- Cablaggio parallelo (2 ohm): Connect the positive terminals of VC1 and VC2 together. Connect the negative terminals of VC1 and VC2 together. The amplifier connects to the combined positive and negative terminals. This results in a total impedance of 2 ohms.
Assicurati sempre il tuo amplifier è stabile all'impedenza scelta. Fare riferimento al vostro amplifier's manual for compatible load impedances.

Immagine: Posteriore view of the Alpine X-W12D4 subwoofer, highlighting the dual voice coil terminals and wiring options for series or parallel configurations.
4.4. Trim Ring and Grill Installation
Once the subwoofer is mounted, attach the twist-lock trim ring and full mesh grill. Align the trim ring with the mounting holes and twist to secure. The mesh grill provides protection for the cone.

Immagine: dall'alto verso il basso view of the Alpine X-W12D4 subwoofer with the protective mesh grill installed, showcasinil suo design elegante.
5. Utilizzo del subwoofer
The Alpine X-W12D4 is designed for high-performance bass reproduction. To achieve the best sound quality and prevent damage, consider the following:
- Amplifier Corrispondenza: Utilizzare un amplifier capable of delivering 900W RMS at the chosen impedance. An underpowered amplifier can lead to clipping and damage, while an overpowered amplifier can cause mechanical failure.
- Impostazione del guadagno: Impostare correttamente il ampguadagno del convertitore per adattarlo al volume di uscitatage dell'unità principale. Non utilizzare il controllo del guadagno come manopola del volume; deve essere impostato in modo da evitare distorsioni al volume massimo dell'unità principale.
- Impostazioni crossover: Utilizza il tuo amplifier's or head unit's low-pass filter (LPF) to send only low frequencies to the subwoofer. A typical LPF setting for this subwoofer is between 60Hz and 80Hz.
- Filtro subsonico: Se il tuo amplifier has a subsonic filter, enable it to protect the subwoofer from playing frequencies below its resonant frequency, which can cause excessive excursion and damage.
- Periodo di rodaggio: Allow a break-in period of approximately 20-30 hours of moderate listening before pushing the subwoofer to its limits. This allows the suspension components to loosen up and perform optimally.
6. Manutenzione
The Alpine X-W12D4 subwoofer requires minimal maintenance to ensure long-term performance.
- Pulizia: Periodically wipe down the subwoofer and grill with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive cleaners.
- Ispezione: Regularly inspect the speaker cone, surround, and spider for any signs of damage, tears, or fatigue. Check all wiring connections for tightness and corrosion.
- Condizioni ambientali: Evitare di esporre il subwoofer a temperature estreme, alla luce solare diretta per periodi prolungati o a umidità eccessiva.
7. Risoluzione Dei Problemi
If you experience issues with your Alpine X-W12D4 subwoofer, refer to the following common problems and solutions:
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Nessun suono dal subwoofer | Nessun potere di amplificatore; cablaggio allentato; amplifier in protect mode; incorrect gain setting; head unit not sending signal. | Controllo amplifier power and ground connections. Verify remote turn-on wire. Inspect all speaker wires. Reset amplifier. Adjust gain. Ensure head unit is on and sending audio. |
| Bassi distorti o poco chiari | Amplifier gain set too high (clipping); incorrect crossover settings; damaged voice coil; poor enclosure. | Ridurre amplifier gain. Adjust LPF and subsonic filter settings. Inspect subwoofer cone and surround for damage. Ensure enclosure is sealed and properly sized. |
| Subwoofer smells burnt | Overpowering; prolonged clipping; voice coil overheating. | Immediately reduce volume. Check amplifier gain and ensure it's not clipping. Verify amplifier power matches subwoofer RMS. Allow subwoofer to cool. If smell persists or performance degrades, the voice coil may be damaged and require replacement. Note: A slight smell during initial break-in is normal, but strong, persistent burning indicates an issue. |
| Basso debole o fangoso | Incorrect wiring (e.g., out of phase); insufficient power; improper enclosure tuning. | Verificare la corretta polarità del cablaggio. Assicurarsi amplifier is providing sufficient power. Consult with an audio professional for enclosure optimization. |
If troubleshooting steps do not resolve the issue, contact Alpine customer support or a qualified car audio technician.
8. Specifiche
| Caratteristica | Specificazione |
|---|---|
| Numero di modello | X-W12D4 |
| Dimensioni dell'altoparlante | 12 pollici |
| Bobine vocali | Dual 4-ohm |
| Gestione della potenza RMS | 900 Watt |
| Gestione della potenza di picco | 1800 Watt |
| Linear Xmax (1 way) | 24mm |
| Peak-to-Peak Excursion | 48mm |
| Risposta in frequenza | 22Hz - 200Hz |
| Profondità di montaggio | 7-1/4 pollici |
| Dimensioni del prodotto | 13 x 17 x 17 pollici |
| Peso dell'articolo | 33 libbre |
| Tecnologia di connettività | Cablato |
| Modalità di uscita audio | Circondare |
9. Garanzia e supporto
Alpine products are designed and manufactured to the highest quality standards. For information regarding warranty coverage, please refer to the warranty card included with your product or visit the official Alpine websito.
Per supporto tecnico, registrazione del prodotto o per trovare centri di assistenza autorizzati, visitare il sito Negozio alpino su Amazon or the main Alpine websito.
10. Video ufficiali dei prodotti
Al momento non sono disponibili video ufficiali del venditore per questo prodotto.
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