1. Introduzione e oltreview
The HERTZ DBA 201F is an 8-inch (200mm) super-flat active under-seat subwoofer system designed to enhance the bass response in your vehicle's audio system. This compact unit features an internal Class D amplifier, providing powerful low-frequency output while maintaining a slim profile for flexible installation options.
Caratteristiche principali:
- High performance in a super-flat design.
- Internal 440-watt peak Class D amppiù vivace.
- Compatible with various car audio systems.
- Plug & Play connection for simplified installation.
- Comprehensive set of controls for fine-tuning in-car audio performance.

Figura 1: Fronte view of the HERTZ DBA 201F active under-seat subwoofer.
2. Informazioni sulla sicurezza
Please read all safety instructions carefully before installing and operating the DBA 201F subwoofer. Failure to follow these guidelines may result in injury, damage to the product, or damage to your vehicle.
- Collegamenti elettrici: Ensure all power connections are made correctly and securely. Disconnect the vehicle's battery before starting any electrical work. Use appropriate gauge wiring and fuses as specified.
- Montaggio: Montare saldamente il subwoofer per evitare che si trasformi in un proiettile in caso di frenate improvvise o incidenti. Evitare di montarlo in punti che ostruiscano i comandi del veicolo o gli airbag.
- Ventilazione: Ensure adequate ventilation around the unit to prevent overheating. Do not cover the subwoofer with carpets or other materials that may impede airflow.
- Protezione dell'udito: Prolonged exposure to high sound pressure levels can cause permanent hearing damage. Adjust volume to a safe level.
- Installazione professionale: If you are unsure about any aspect of the installation, consult a qualified car audio professional.
3. Cosa c'è nella scatola
Verificare che tutti i componenti siano presenti prima di iniziare l'installazione.
- HERTZ DBA 201F Active Subwoofer Unit
- Cablaggio (alimentazione, terra, telecomando, ingressi livello altoparlante)
- Remote Bass Level Control with Cable
- Hardware di montaggio (viti, staffe se applicabile)
- Manuale dell'utente (questo documento)

Figure 2: Included accessories: remote control and wiring harness.
4. Configurazione e installazione
Un'installazione corretta è fondamentale per garantire prestazioni e sicurezza ottimali.
4.1 Scelta di una posizione di montaggio
The DBA 201F is designed for under-seat installation due to its super-flat profile. Consider locations that:
- Provide sufficient clearance for the unit and its wiring.
- Consentire un'adeguata ventilazione.
- Do not interfere with seat movement, vehicle controls, or safety systems.
- Offer a secure mounting surface.

Figure 3: Dimensions of the DBA 201F for placement consideration.
4.2 Collegamenti di cablaggio
Refer to the wiring diagram on the unit and in the full manual for specific connections. General steps include:
- Potenza (B+): Connect the main power wire (typically red) to the positive terminal of the vehicle's battery. Ensure an in-line fuse (not supplied, typically 15A as per product specifications, but verify with the unit's fuse holder) is installed close to the battery.
- Terra (GND): Connect the ground wire (typically black) to a clean, unpainted metal surface of the vehicle chassis. Ensure a solid electrical connection.
- Accensione remota (REM): Connect the remote turn-on wire (typically blue or yellow) to the remote output of your head unit. This signal turns the subwoofer on and off with your car stereo.
- Ingresso audio:
- RCA (Low-Level) Input: If your head unit has RCA pre-outs, connect them to the RCA inputs on the subwoofer.
- Speaker Level (High-Level) Input: If your head unit does not have RCA outputs, connect the speaker wires from your head unit directly to the speaker level inputs on the subwoofer's wiring harness.

Figura 4: Collegamenti e controlli del pannello posteriore.

Figure 5: Subwoofer with wiring harness connected.
5. Istruzioni per l'uso
Once installed, adjust the subwoofer settings for optimal sound integration with your vehicle's audio system.
5.1 Regolazioni del pannello di controllo
The DBA 201F features several controls on its rear panel (refer to Figure 4 and Figure 6):
- GUADAGNO: Regola la sensibilità in ingresso di amplifier. Start with the gain at minimum and slowly increase it until the subwoofer output matches the rest of your system without distortion.
- LO-PASS (Low-Pass Filter): Sets the upper frequency limit for the subwoofer. Frequencies above this setting will be filtered out. Typically set between 50Hz and 100Hz, depending on your main speakers.
- AUMENTO DEI BASSI: Provides an adjustable boost to bass frequencies, usually around 45Hz. Use sparingly to avoid distortion.
- FASE: Allows you to adjust the phase of the subwoofer output (0° or 180°) to match the phase of your main speakers. Adjust this setting to achieve the most coherent bass response.
- REMOTE CONTROL TURN ON: Switch between DC (DC offset detection for high-level input) or AUDIO (audio signal detection for high-level input) for automatic turn-on, or ON for remote wire turn-on.
- INGRESSO: Selects between PRE (RCA/low-level input) and SPK (speaker/high-level input).

Figura 6: dettagliata view del pannello di controllo.
5.2 Controllo remoto del livello dei bassi
The included remote bass level control allows for convenient adjustment of the subwoofer's output level from the driver's seat. Connect it to the designated port on the subwoofer.
6. Manutenzione
The HERTZ DBA 201F requires minimal maintenance.
- Pulizia: Utilizzare un panno morbido e asciutto per pulire l'esterno dell'unità. Non utilizzare prodotti chimici aggressivi o detergenti abrasivi.
- Ispezione: Periodically check all wiring connections to ensure they are secure and free from corrosion. Inspect the unit for any signs of damage or overheating.
- Ventilazione: Assicurarsi che l'area attorno al subwoofer rimanga libera per consentire una corretta dissipazione del calore.
7. Risoluzione Dei Problemi
If you experience issues with your DBA 201F, refer to the following common problems and solutions.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Nessuna alimentazione / L'unità non si accende |
|
|
| Nessun suono |
|
|
| Suono distorto |
|
|
| Il subwoofer si spegne a intermittenza |
|
|
Note regarding fuses: The DBA 201F is designed with a 15A fuse. If this fuse repeatedly blows, it may indicate an underlying electrical issue, a short circuit, or the unit being driven beyond its intended limits. Ensure proper wiring and consult a professional if the issue persists.
8. Specifiche
Technical specifications for the HERTZ DBA 201F active subwoofer.
| Marca | HERTZ |
| Numero di modello | DBA-201F |
| Dimensioni dell'altoparlante | 8 pollici (200 mm) |
| Potenza massima in uscita dell'altoparlante | 440 Watt (picco) |
| Risposta in frequenza | 32 Hz (Lower limit) |
| Tecnologia di connettività | Cablato |
| Modalità di uscita audio | Circondare |
| Tipo di montaggio | Under-seat / Tabletop Mount |
| Caratteristiche aggiuntive | Bass Boost, Remote Control |
| Tipo di controllore | Remote Control, Touch (on unit) |
| Impedenza | 0.4 Ohm |
| Fonte di alimentazione | Corded Electric (Vehicle 12V) |
| Ingresso volumetage | 6 Volts (likely referring to signal input sensitivity) |
| Dimensioni dell'articolo (P x L x A) | 13.58"P x 9.64"L x 3.11"A (345 mm x 245 mm x 79 mm) |
| Peso dell'articolo | 10 libbre |
| Dispositivi compatibili | Audio System Car |
| Tipi di veicoli compatibili | SUVs, Select Cars, Trucks |
9. Informazioni sulla garanzia
The HERTZ DBA 201F is covered by a Garanzia del produttore di 1 anno. This warranty typically covers defects in materials and workmanship under normal use.
To claim warranty service, please retain your proof of purchase and contact the authorized HERTZ dealer or the manufacturer's customer support. The warranty does not cover damage caused by improper installation, accident, misuse, abuse, negligence, or unauthorized modification.
10. Supporto
For further assistance, technical support, or service inquiries regarding your HERTZ DBA 201F, please contact your authorized HERTZ dealer or visit the official HERTZ websito per le informazioni di contatto dell'assistenza clienti.