1. Introducere
This manual provides comprehensive instructions for the Alpine S2-A120M S-Series Class-D Mono Subwoofer Amplifier and the Alpine RUX-KNOB.2 Remote Bass Knob. It covers essential information regarding product features, proper setup, operational guidelines, maintenance procedures, troubleshooting common issues, and detailed technical specifications. Please read this manual thoroughly before installation and operation to ensure correct usage and optimal performance.
2. Produs terminatview
2.1. Caracteristici cheie
- S2-A120M Ampmai în viață: Class-D Mono Subwoofer Amplifier with 1200W RMS power output at 1 or 2 Ohms.
- Features Alpine's Class D Amplifier Circuitry.
- Designed with a two-sided terminal layout for efficient wiring.
- Includes built-in selectable and adjustable crossovers.
- Compatible with optional remote bass knobs (RUX-KNOB.2 or RUX-H01).
- RUX-KNOB.2 Remote Bass Knob: Allows for convenient adjustment of amplifier bass gain from within the vehicle cabin.
- Suporta multiple amplifier control with telephone cord adapters.
2.2. Componente
The product bundle includes the Alpine S2-A120M Mono Subwoofer Amplifier and the Alpine RUX-KNOB.2 Remote Bass Knob.

Figura 1: Alpine S2-A120M Subwoofer mono seria S Amplifier and RUX-KNOB.2 Remote Bass Knob. This image displays the amplifier unit and the separate remote bass knob.

Figura 2: Top view of the Alpine S2-A120M Amplifier. The top panel features the Alpine logo and a central indicator light.

Figura 3: A închide view of the Alpine RUX-KNOB.2 Remote Bass Knob. This image highlights the control knob and its mounting bracket.
3. Configurare și instalare
Instalarea corectă este crucială pentru performanța și longevitatea mașinii dumneavoastră ampinstalator. Se recomandă ca instalarea să fie efectuată de către un profesionist calificat.
3.1. Amplifier Plasarea
- Alegeți un loc uscat, bine ventilat și ferit de lumina directă a soarelui sau de căldură excesivă.
- Asigurați spațiu suficient în jurul ampLiifier pentru disiparea corectă a căldurii.
- Montați ampîn siguranță pentru a preveni mișcarea în timpul funcționării vehiculului.
3.2. Conexiuni de cablare
The S2-A120M amplifier features a two-sided terminal layout for organized wiring.

Figura 4: Rear panel connections of the Alpine S2-A120M Amplifier. Acest view shows the power supply terminals (BATT, REM, GND) and speaker output terminals (SPK OUT).
- Conexiune de alimentare: Connect the main power cable from the vehicle battery to the BATT terminal. Ensure an appropriate fuse is installed close to the battery.
- Conexiune la pământ: Connect a short, heavy-gauge ground cable from the GND terminal to a clean, unpainted metal surface on the vehicle chassis.
- Pornire de la distanță: Connect a remote turn-on wire from your head unit to the REM terminal. This wire signals the ampactivator pentru a porni și opri sistemul audio.
- Intrare audio: Conectați cablurile RCA de la ieșirea subwooferului unității principale la amplifier's input jacks (not explicitly shown in the provided image, but standard for ampliificatori).
- Ieșire difuzor: Conectați subwooferul/subwooferele la SPK OUT terminals. Observe correct polarity (+ to + and - to -).
3.3. RUX-KNOB.2 Installation
The RUX-KNOB.2 remote bass knob connects to the amplifier via a telephone cord adapter. Install the knob in a convenient location within the vehicle cabin for easy access.
- Mount the RUX-KNOB.2 using the provided bracket and screws.
- Connect the telephone cord from the RUX-KNOB.2 to the designated remote bass knob port on the S2-A120M ampmai în viață.
4. Instrucțiuni de utilizare
4.1. Pornirea inițială
- After all connections are made, turn on your vehicle's ignition and audio system.
- The ampIndicatorul de alimentare al dispozitivului de alimentare ar trebui să se aprindă.
4.2. Ajustarea câștigului
The gain control on the amplifier matches the output voltage of your head unit to the amplifier's input. Set the gain carefully to avoid distortion.
- Începe cu amplifier gain set to minimum.
- Play a familiar music track with strong bass content.
- Slowly increase the head unit volume until it reaches about 75-80% of its maximum.
- Creșteți treptat amplifier gain until you hear slight distortion, then back off slightly.
4.3. Setări Crossover
The S2-A120M features built-in selectable and adjustable crossovers to filter frequencies sent to your subwoofer.
- Adjust the low-pass filter (LPF) to send only low frequencies to the subwoofer. A common starting point is 80-100 Hz.
- Refer to your subwoofer's specifications for recommended crossover points.
4.4. Using the RUX-KNOB.2 Remote Bass Knob
The RUX-KNOB.2 allows for real-time adjustment of the subwoofer's bass level from the driver's seat.
- Rotate the knob clockwise to increase bass output.
- Rotate the knob counter-clockwise to decrease bass output.
- This knob provides fine-tuning of the bass level without needing to access the amplifier direct.
5. Întreținere
Regular maintenance helps ensure the longevity and optimal performance of your Alpine amplifier and bass knob.
- curatenie: Ștergeți periodic amplifier and bass knob with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive cleaners.
- Verificarea conexiunii: Annually, inspect all wiring connections (power, ground, remote, RCA, speaker) to ensure they are secure and free from corrosion. Loose connections can lead to performance issues or damage.
- Ventilare: Asigurați-vă că amplifier's cooling fins are not obstructed to allow for proper heat dissipation.
6. Depanare
If you encounter issues with your Alpine amplifier, refer to the following troubleshooting guide before seeking professional assistance.
| Problemă | Cauza posibila | Soluţie |
|---|---|---|
| Fără curent / AmpLiferul nu pornește |
|
|
| Fără ieșire de sunet |
|
|
| Sunet distorsionat |
|
|
| RUX-KNOB.2 Not Functioning |
|
|
7. Specificații
7.1. Alpine S2-A120M Ampmai în viață
- Power Output (14.4V, <0.1% THD+N):
- 600W x 1 @ 4Ω
- 1200W x 1 @ 2Ω
- 1200W x 1 @ 1Ω
- Raport semnal-zgomot (raport S/N): >85dB
- Raspuns in frecventa: 20 Hz – 400 Hz
- DampFactor: >750
- Dimensiuni (L x A x A): 13.1 ”x 2.25” x 8.25 ”(33.27 cm x 5.72 cm x 20.96 cm)
- Greutate: Approximately 8 lbs, 11 oz (3.94 kg)
7.2. Alpine RUX-KNOB.2 Remote Bass Knob
- Funcţie: Remote bass gain adjustment for compatible Alpine ampliificatori.
- Compatibilitate: Designed for use with S2-A120M and other compatible Alpine amplifiers (e.g., MRX-M50, MRX-M100, MRX-V60, PDX-M12, PDX-M6).
- Conexiune: Via telephone cord adapter.
8. Garanție și asistență
Pentru informații despre garanție și asistență tehnică, vă rugăm să consultați site-ul oficial Alpine. website or contact Alpine customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.
Alpine Customer Support: Visit Alpine's Support Page





