1. Einführung und Endeview
The ESX QUANTUM QS-FOUR is an ultra-compact 4-channel Class D amplifier designed to significantly upgrade your car audio system. This powerful yet miniature 4-channel version measures only 90 x 35 x 80 mm, making it one of the smallest amplifiers in its class. It delivers an impressive 4 x 60 Watts RMS, providing substantial power to factory or aftermarket speakers.
The QS-FOUR features exceptionally low distortion (THD+N < 0.007% at 5W/RMS) and high efficiency (up to 90%), ensuring clear and dynamic sound reproduction. Its compact size allows for flexible installation, often directly behind the dashboard, making it an ideal plug-and-play solution for vehicles. The amplifier's low current draw (5-10 Amps) means it can often utilize existing factory power cables. Additionally, the QS-FOUR includes low-level outputs for connecting active subwoofers or larger monoblock amplifiers, offering expandability for enhanced bass.
2. Sicherheitshinweise
- Vor Beginn jeglicher Installationsarbeiten muss immer die Fahrzeugbatterie abgeklemmt werden, um Kurzschlüsse und elektrische Schäden zu vermeiden.
- Professional installation is recommended. Incorrect wiring can cause serious damage to the ampVerstärker, Fahrzeug oder Personenschaden.
- Ensure all wiring is properly insulated and secured to prevent short circuits and vibrations.
- Installieren Sie nicht die amplifier in locations exposed to moisture, excessive heat, or direct sunlight.
- Use appropriate gauge wiring for power and speaker connections as specified in the installation section.
- Protect all power cables with an inline fuse located close to the battery.
- Vermeiden Sie die Platzierung amplifier where it could obstruct vehicle controls or safety devices.
3. Packungsinhalt
Bitte überprüfen Sie den Packungsinhalt, um sicherzustellen, dass alle Artikel vorhanden und unbeschädigt sind:
- ESX QUANTUM QS-FOUR AmpLifier-Einheit
- High-Level Input Wiring Harness with EPS (Error Protection System)
- Power Input Wiring Harness
- Speaker Output Wiring Harness
- RCA Line-Out Cables
- Inline Fuse Holder with Fuse
- Befestigungsschrauben
4. Produktmerkmale
- Ultrakompaktes Design: Dimensions of 90 x 35 x 80 mm for flexible installation.
- Hohe Ausgangsleistung: 4 x 60 W RMS at 2 Ω, 4 x 45 W RMS at 3 Ω, 4 x 35 W RMS at 4 Ω, or 2 x 120 W RMS bridged at 4 Ω.
- Full Range Class D Technology: Efficient power delivery with minimal heat generation.
- Selectable Crossover Filters: Front and Rear Highpass/Lowpass filters switchable at 80 Hz.
- High-Level Inputs with EPS: Error Protection System for seamless integration with factory head units.
- Auto-Turn-On Function: Automatic power-on via DC offset or VOX (signal detection).
- 2-Channel RCA Line-Out: For connecting external active subwoofers or additional amplifizierer.
- 12V Remote Output: Provides a remote signal for other devices.
- Breiter Frequenzgang: 10 Hz bis 60 kHz.
- Low Total Harmonic Distortion (THD+N): < 0.007% at 5W/RMS.
- Hohe Effizienz: Up to 90% for reduced power consumption.
5. Einrichtung und Installation
5.1 Kabelverbindungen
Before making any connections, ensure the vehicle's battery is disconnected. Refer to the diagrams below for proper wiring.
Leistungsaufnahme:
- +12 V: Connect to the positive terminal of the car battery via an inline fuse (not included, but a fuse holder is provided).
- Masse: Connect to a solid, unpainted metal point on the vehicle chassis. Ensure a good ground connection.
- REM (Fernbedienung): Connect to the remote output of your head unit. If using high-level inputs with Auto-Turn-On, this connection may not be necessary.
Lautsprecherausgang:
Connect your speakers to the designated terminals. Ensure correct polarity (positive to positive, negative to negative). The amplifier supports 4-channel stereo or 2-channel bridged operation.
- FL+/FL-: Lautsprecher vorne links
- FR+/FR-: Vorderer rechter Lautsprecher
- RL+/RL-: Hinten links Lautsprecher
- RR+/RR-: Hinterer rechter Lautsprecher
- Überbrückter Modus: For 2-channel operation, connect the positive of the left speaker to FL+ and the negative to FR-. For the right speaker, connect positive to RL+ and negative to RR-. Refer to the manual for specific bridging instructions.
Eingangsanschlüsse:
- High-Level-Eingang: Use the provided harness to connect to your head unit's speaker outputs. The EPS (Error Protection System) ensures compatibility with various factory systems.
- RCA Line-Out: Use the RCA cables to connect to an active subwoofer or another ampschwerer.
5.2 Grundeinstellungen
- Level Input (Gain): Start with the gain knobs set to minimum (MIN). Gradually increase the gain until the sound is clear and distortion-free at your desired listening volume. Avoid setting the gain too high, as this can introduce distortion.
- X-OVER (Crossover):
- VOLL: Full range audio (no filter).
- HP (Hochpass): Allows frequencies above 80 Hz to pass, typically used for full-range speakers to remove bass.
- LP (Tiefpass): Allows frequencies below 80 Hz to pass, typically used for subwoofers (though this amplifier is not primarily for subwoofers, it can be used for mid-bass applications).
- AUTO TURN-ON:
- AUS: Amplifier turns on via the REM wire.
- VOX: Amplifier turns on when an audio signal is detected (signal sensing).
- Gleichstrom: Amplifier turns on when a DC offset is detected on the high-level inputs (common with factory head units).
6. Bedienungsanleitung
Once properly installed and configured, the ESX QUANTUM QS-FOUR amplifier operates automatically with your vehicle's audio system.
- Ein-/Ausschalten: Der amplifier will power on and off with your head unit, depending on the selected AUTO TURN-ON mode (REM, VOX, or DC). The 'POWER' LED on the rear panel will illuminate when the amplifier ist aktiv.
- Audiowiedergabe: Play audio through your head unit as usual. The amplifier will provide enhanced power and clarity to your speakers.
- Lautstärke anpassen: Control the overall system volume using your head unit. If distortion occurs at high volumes, slightly reduce the ampVerstärkungseinstellung des Verstärkers.
- Schutzmodus: If the 'PROTECT' LED illuminates, the amplifier has entered protection mode due to an issue (e.g., short circuit, overheating, low voltage). Turn off your audio system and vehicle, then troubleshoot the cause before restarting.
7. Wartung
- Reinigung: Reinigen Sie die ampÄußeres des Verstärkers. Keine scharfen Chemikalien oder Scheuermittel verwenden.
- Verbindungen: Überprüfen Sie regelmäßig alle Strom-, Erdungs- und Lautsprecheranschlüsse, um sicherzustellen, dass sie fest sitzen und frei von Korrosion sind.
- Belüftung: Stellen Sie sicher, dass amplifier's cooling fins are not obstructed to allow for proper heat dissipation.
- Sicherungswechsel: If the inline fuse blows, replace it only with a fuse of the same type and rating to prevent damage.
8. Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Kein Ton von den Lautsprechern | Keine Macht zu amplifier; Incorrect input/output wiring; Head unit not sending signal; Amplifier im Schutzmodus. | Check power and ground connections; Verify remote turn-on signal; Check speaker and input wiring; Ensure head unit is on and playing audio; Check 'PROTECT' LED. |
| Verzerrter Ton | Verstärkung zu hoch eingestellt; Falsche Frequenzweicheneinstellungen; Fehlanpassung der Lautsprecherimpedanz; Beschädigte Lautsprecher. | Reduce gain level; Adjust crossover settings; Verify speaker impedance is within amplifier's range; Test speakers individually. |
| 'PROTECT' LED is on | Short circuit in speaker wiring; Overheating; Low/high voltage; Speaker impedance too low. | Turn off system, check all speaker wires for shorts; Ensure adequate ventilation; Check vehicle's battery voltage; Verify speaker impedance. |
| Amplifier schaltet sich nicht ein | No +12V power; No ground connection; No remote signal (if not using Auto-Turn-On); Blown fuse. | Check fuse, power, and ground wires; Verify remote wire connection or Auto-Turn-On setting. |
9. Spezifikationen
| Besonderheit | Spezifikation |
|---|---|
| Modellnummer | QS-FOUR |
| Kanäle | 4 |
| Output Power (RMS @ 4 Ω) | 4 x 35 W |
| Output Power (RMS @ 3 Ω) | 4 x 45 W |
| Output Power (RMS @ 2 Ω) | 4 x 60 W |
| Bridged Output Power (RMS @ 4 Ω) | 2 x 120 W |
| Frequenzgang | 10 Hz – 60 kHz |
| Total Harmonic Distortion (THD+N @ 5W/RMS) | < 0.007 % |
| Effizienz | Bis zu 90% |
| Crossover-Filter | HP/LP switchable @ 80 Hz (Front/Rear) |
| Eingangslautstärketage | 12V DC (Min/Max) |
| Abmessungen (L x B x H) | 90 x 80 x 35 mm (3.54 x 3.15 x 1.38 Zoll) |
| Montagetyp | Freistehende |
| Einhaltung | CE |
10. Garantie und Support
The ESX QUANTUM QS-FOUR amplifier comes with a manufacturer's warranty. Please refer to the warranty card included with your product or contact your authorized ESX dealer for specific warranty terms and conditions.
For technical support, installation assistance, or service inquiries, please contact your point of purchase or visit the official ESX Car-Audio webWebsite für Kontaktinformationen und Ressourcen.