1. Einleitung
Welcome to the ISUDAR SU6901 Car Subwoofer instruction manual. This document provides essential information for the proper installation, operation, and maintenance of your new active car subwoofer. Please read this manual thoroughly before use to ensure optimal performance and safety.
2. Produktüberschreitungview
The ISUDAR SU6901 is an active car subwoofer designed to enhance your vehicle's audio system with powerful bass. It features an integrated amplifier and a compact design for flexible installation.
Hauptkomponenten

Abbildung 2.1: Insgesamt view of the ISUDAR SU6901 active car subwoofer.

Figure 2.2: The control panel on the side of the subwoofer provides access to power connections, input options, and audio adjustments.
3. Hauptmerkmale
- Integrierte Stromversorgung AmpReiniger: Delivers 150 watts of bass output.
- Langlebige Aluminiumkonstruktion: Full die-cast aluminum molds ensure rapid heat dissipation and minimize noise-causing vibrations.
- High-Level-Eingang: Allows connection to both aftermarket and original equipment stereo systems, making it a perfect addition to your car's factory audio.
- Ultra-Slim, Space-Saving Design: Compact dimensions enable installation under most car seats, preserving passenger legroom.
- Variabler Tiefpassfilter: Provides control over level, frequency, and phase settings for customized bass response.
- Fernbedienung für Bass: Included remote allows easy adjustment of bass levels from the driver's seat.
4. Packungsinhalt
Bitte überprüfen Sie, ob alle Artikel im Paket vorhanden sind:

Figure 4.1: Components included with your ISUDAR SU6901 subwoofer.
- ISUDAR SU6901 Aktiver Auto-Subwoofer
- Power Wire (480cm)
- Audio Cable (500cm)
- Sicherung
- Erdungskabel
- Control Wire (500cm)
- Bass-Fernbedienung
- Various Connectors and Mounting Hardware
5. Technische Daten
| Besonderheit | Spezifikation |
|---|---|
| Marke | ISUDAR |
| Maximale Lautsprecherausgangsleistung | 150 Watt |
| Frequenzgang | 10 GHz |
| Konnektivitätstechnologie | Verdrahtet |
| Audioausgabemodus | Stereo |
| Eingangslautstärketage | 12 Volt (DC) |
| Montagetyp | Montagehalterung |
| Material | Aluminium |
| Modellname | ISUDAR SU6901 |
| Lautsprechertyp | Koaxial |
| Kontrollmethode | Fernbedienung |
| Lautsprechergröße | 293 Millimeters (6 Inches) |
| Impedanz | 4 Ohm |
| Kompatibler Fahrzeugtyp | Auto |
| Stromquelle | Gleichstromversorgung |
| Anzahl der Audiokanäle | 2.1 |
| Wasserbeständigkeit | Nicht wasserdicht |
| Garantietyp | Eingeschränkte Garantie |
6. Installationsanleitung
Sicherheitsvorkehrungen
- Vor Beginn der Installation den Minuspol der Fahrzeugbatterie abklemmen.
- Stellen Sie sicher, dass alle Leitungen ordnungsgemäß isoliert sind, um Kurzschlüsse zu vermeiden.
- Mount the subwoofer securely to prevent movement during driving.
- Wenn Sie sich bei einzelnen Installationsschritten unsicher sind, wenden Sie sich an einen Fachmann.
Empfohlene Platzierung
The compact design of the ISUDAR SU6901 allows for flexible placement. The most common and recommended location is under a car seat to save space and provide optimal bass distribution. Ensure there is adequate ventilation around the unit.
Verdrahtungsanweisungen
The subwoofer requires power, ground, and a remote turn-on signal, in addition to audio input.
Stromanschluss

Figure 6.1: Power and ground wiring connections.
- Connect the red power wire (typically 480cm) to the positive (+) terminal of your car battery. Install the included fuse holder as close to the battery as possible.
- Connect the black ground wire to a clean, unpainted metal surface on the vehicle's chassis. Ensure a good electrical connection.
- Connect the blue remote turn-on wire to the remote output of your car's head unit. This wire tells the subwoofer to turn on and off with your stereo.
Audioeingangsverbindung
The ISUDAR SU6901 supports both low-level (RCA) and high-level (speaker wire) inputs.
Low-Level-Eingang (RCA)

Figure 6.2: RCA audio input connection.
If your head unit has RCA pre-outs, connect the supplied audio cable (500cm) from the head unit's RCA outputs to the "INPUT" RCA jacks on the subwoofer. This provides the best signal quality.
Hochpegeleingang (Lautsprecherkabel)

Figure 6.3: High-level speaker wire input connection.
If your head unit does not have RCA outputs, use the high-level input. Connect the speaker wires from your head unit's speaker outputs to the high-level input terminal on the subwoofer. Refer to your head unit's manual for speaker wire polarity.
Eingangspegelschalter
On the control panel (refer to Figure 2.2), locate the "INPUT LEVEL" switch. Set it to "RCA" if using low-level inputs or "SPK" if using high-level inputs.
7. Bedienung
Initial Setup and Adjustments
After installation, turn on your car's audio system. The subwoofer should power on automatically if the remote wire is connected correctly.

Figure 7.1: Subwoofer control panel for adjustments.
Gain Control (MIN/MAX)
- Adjust the "GAIN" knob to match the output level of your head unit. Start at minimum and slowly increase until the bass blends well with your main speakers without distortion.
Low Pass Filter (LOW PASS 50-150Hz)
- This filter controls the upper frequency limit of the subwoofer. Adjust it to blend smoothly with your main speakers. A common starting point is 80-100Hz.
Bass Boost (0-12dB)
- Use the "BASS BOOST" knob to increase the bass output at a specific frequency. Use sparingly to avoid distortion.
Phase Control (0°/180°)
- The "PHASE" switch helps to align the subwoofer's output with your main speakers. Listen to music with strong bass and switch between 0° and 180° to find the setting that provides the most impactful and cohesive bass.
Bass-Fernbedienung
- The included remote bass control allows you to adjust the subwoofer's output level conveniently from the driver's seat without accessing the main unit.
8. Wartung
- Keep the subwoofer clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Stellen Sie sicher, dass alle Verbindungen fest sitzen. Überprüfen Sie die Verkabelung regelmäßig auf Anzeichen von Verschleiß oder Beschädigung.
- Setzen Sie den Subwoofer keinen extremen Temperaturen oder Feuchtigkeit aus.
- Do not block the speaker grille or any ventilation openings.
9. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Kein Ton | No power to the subwoofer. | Check power, ground, and remote wire connections. Ensure the fuse is intact. |
| Kein Ton | Incorrect input level setting. | Verify the "INPUT LEVEL" switch is set correctly (RCA or SPK). |
| Kein Ton | Audio input cables are loose or faulty. | Check RCA or speaker wire connections. |
| Verzerrter Klang | Die Verstärkung ist zu hoch eingestellt. | Reduce the "GAIN" setting. |
| Verzerrter Klang | Bassverstärkung zu hoch eingestellt. | Reduce the "BASS BOOST" setting. |
| Schwacher Bass | Falsche Phaseneinstellung. | Toggle the "PHASE" switch between 0° and 180°. |
| Schwacher Bass | Low Pass Filter set too low. | Adjust the "LOW PASS" frequency higher. |
| Subwoofer turns off randomly | Overheating or protection mode activated. | Ensure adequate ventilation. Check for short circuits in wiring. Reduce volume/gain. |
| Sicherung brennt wiederholt durch | Short circuit in power wiring or internal fault. | Inspect power and ground wires for damage or short circuits. If the issue persists, seek professional assistance. |
If you continue to experience issues, please contact ISUDAR customer support.
10. Garantieinformationen
The ISUDAR SU6901 Car Subwoofer comes with a limited warranty. Please refer to the warranty card included in your package for specific terms and conditions. Keep your proof of purchase for warranty claims.
11. Kundendienst
For further assistance, technical support, or warranty inquiries, please visit the official ISUDAR store or contact their customer service.