1. Introduzione e oltreview
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. Informazioni sulla sicurezza
- Always disconnect the vehicle's battery before beginning any installation work to prevent electrical shorts and damage.
- Professional installation is recommended. Incorrect wiring can cause serious damage to the amplificatore, veicolo o lesioni personali.
- Ensure all wiring is properly insulated and secured to prevent short circuits and vibrations.
- Non installare il amplifier in locations exposed to moisture, excessive heat, or direct sunlight.
- Utilizzare cavi di calibro appropriato per i collegamenti di alimentazione e degli altoparlanti, come specificato nella sezione di installazione.
- Protect all power cables with an inline fuse located close to the battery.
- Evitare di posizionare il amplifier where it could obstruct vehicle controls or safety devices.
3. Contenuto della confezione
Si prega di controllare il contenuto della confezione per assicurarsi che tutti gli articoli siano presenti e integri:
- ESX QUANTUM QS-FOUR AmpUnità lificatore
- 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
- Viti di montaggio
4. Caratteristiche del prodotto
- Design ultracompatto: Dimensions of 90 x 35 x 80 mm for flexible installation.
- Uscita ad alta potenza: 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 amplificatori.
- 12V Remote Output: Provides a remote signal for other devices.
- Ampia risposta in frequenza: Da 10 Hz a 60 kHz.
- Low Total Harmonic Distortion (THD+N): < 0.007% at 5W/RMS.
- Alta efficienza: Up to 90% for reduced power consumption.
5. Configurazione e installazione
5.1 Collegamenti di cablaggio
Before making any connections, ensure the vehicle's battery is disconnected. Refer to the diagrams below for proper wiring.
Potenza in ingresso:
- +12 V: Connect to the positive terminal of the car battery via an inline fuse (not included, but a fuse holder is provided).
- TERRA: Connect to a solid, unpainted metal point on the vehicle chassis. Ensure a good ground connection.
- REM (telecomando): Connect to the remote output of your head unit. If using high-level inputs with Auto-Turn-On, this connection may not be necessary.
Uscita altoparlante:
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-: Altoparlante anteriore sinistro
- FR+/FR-: Altoparlante anteriore destro
- RL+/RL-: Altoparlante posteriore sinistro
- RR+/RR-: Altoparlante posteriore destro
- Modalità a ponte: 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.
Connessioni di ingresso:
- Input di alto livello: Use the provided harness to connect to your head unit's speaker outputs. The EPS (Error Protection System) ensures compatibility with various factory systems.
- Uscita di linea RCA: Use the RCA cables to connect to an active subwoofer or another amppiù vivace.
5.2 Impostazioni iniziali
- 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):
- PIENO: Full range audio (no filter).
- HP (Passa Alto): Allows frequencies above 80 Hz to pass, typically used for full-range speakers to remove bass.
- LP (Passa basso): 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:
- OFF: Amplifier turns on via the REM wire.
- VOX: Amplifier turns on when an audio signal is detected (signal sensing).
- CC: Amplifier turns on when a DC offset is detected on the high-level inputs (common with factory head units).
6. Istruzioni per l'uso
Once properly installed and configured, the ESX QUANTUM QS-FOUR amplifier operates automatically with your vehicle's audio system.
- Accensione/spegnimento: IL 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 è attivo.
- Riproduzione audio: Play audio through your head unit as usual. The amplifier will provide enhanced power and clarity to your speakers.
- Regolazione del volume: Control the overall system volume using your head unit. If distortion occurs at high volumes, slightly reduce the ampimpostazione del guadagno del generatore.
- Modalità di protezione: 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. Manutenzione
- Pulizia: Utilizzare un panno morbido e asciutto per pulire il ampl'esterno del filtro. Non utilizzare prodotti chimici aggressivi o detergenti abrasivi.
- Connessioni: Controllare periodicamente tutti i collegamenti di alimentazione, di terra e degli altoparlanti per assicurarsi che siano saldi e privi di corrosione.
- Ventilazione: Assicurare il ampLe alette di raffreddamento del lifier non sono ostruite per consentire una corretta dissipazione del calore.
- Sostituzione fusibile: If the inline fuse blows, replace it only with a fuse of the same type and rating to prevent damage.
8. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Nessun suono dagli altoparlanti | Nessun potere di amplifier; Incorrect input/output wiring; Head unit not sending signal; Amplificatore in modalità di protezione. | 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. |
| Suono distorto | Gain set too high; Incorrect crossover settings; Speaker impedance mismatch; Damaged speakers. | 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 non si accende | 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. Specifiche
| Caratteristica | Specificazione |
|---|---|
| Numero di modello | QS-FOUR |
| Canali | 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 |
| Risposta in frequenza | Frequenza di campionamento: 10 Hz – 60 kHz |
| Total Harmonic Distortion (THD+N @ 5W/RMS) | < 0.007% |
| Efficienza | Fino al 90% |
| Filtri crossover | HP/LP switchable @ 80 Hz (Front/Rear) |
| Ingresso volumetage | 12V DC (Min/Max) |
| Dimensioni (L x P x A) | 90 x 80 x 35 mm (3.54 x 3.15 x 1.38 pollici) |
| Tipo di montaggio | Libera installazione |
| Conformità | CE |
10. Garanzia e supporto
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 websito per informazioni di contatto e risorse.