Klipsch SUB-120

Klipsch Synergy Black Label Sub-120 Subwoofer Instruction Manual

1. Einleitung

This manual provides essential information for the proper installation, operation, and maintenance of your Klipsch Synergy Black Label Sub-120 front-firing 12” subwoofer. Designed to deliver powerful bass, this subwoofer features 200 watts of continuous power and 400 watts of dynamic power, driven by an all-digital amplifier for accurate sound reproduction. It is compatible with most AV receivers, enhancing any home theater setup with deep, thundering bass.

Klipsch Synergy Black Label Sub-120 Subwoofer, front view with copper cone visible

Figure 1: Klipsch Synergy Black Label Sub-120 Subwoofer, showcasing its front-firing design and distinctive copper cone.

Klipsch Synergy Black Label Sub-120 Subwoofer with grille attached

Figure 2: Klipsch Synergy Black Label Sub-120 Subwoofer with its strong, flexible, and removable grille in place.

2. Wichtige Sicherheitshinweise

Please read all safety instructions before operating this product. Keep this manual for future reference. Adhere to all warnings on the product and in the operating instructions.

  • Energiequelle: Only connect the subwoofer to a power supply of the type described in the operating instructions or as marked on the appliance.
  • Belüftung: Sorgen Sie für ausreichende Belüftung. Blockieren Sie keine Belüftungsöffnungen. Installieren Sie das Gerät gemäß den Anweisungen des Herstellers.
  • Hitze: Installieren Sie das Gerät nicht in der Nähe von Wärmequellen wie Heizkörpern, Heizregistern, Öfen oder anderen Geräten (einschließlich ampKonverter (Lüfter), die Wärme erzeugen.
  • Wasser und Feuchtigkeit: Do not use this apparatus near water or in excessively humid environments.
  • Reinigung: Nur mit trockenem Tuch reinigen.
  • Wartung: Versuchen Sie nicht, dieses Produkt selbst zu warten. Überlassen Sie alle Wartungsarbeiten qualifiziertem Servicepersonal.

3. Lieferumfang

Bitte überprüfen Sie beim Auspacken, ob alle folgenden Artikel enthalten sind:

  • Klipsch Synergy Black Label Sub-120 Subwoofer
  • Netzkabel
  • Bedienungsanleitung (dieses Dokument)

Note: Connection wires (e.g., RCA cables) are not included and must be purchased separately.

4. Einrichtung

4.1 Aufstellung des Subwoofers

For optimal performance and bass response, it is recommended to place your Klipsch Sub-120 subwoofer in a corner of the room. Corner placement utilizes the room's acoustics to enhance bass output and provide a more immersive audio experience.

4.2 Anschlüsse

The Klipsch Sub-120 offers flexible connection options to integrate with almost any AV receiver or stereo system.

  • LFE-Eingang (Niederfrequenzeffekte): For receivers with a dedicated subwoofer output (LFE or SUB OUT), connect a single RCA cable from the receiver's subwoofer output to the LFE input on the subwoofer. This is the recommended connection for home theater systems.
  • Line In (Stereo RCA Inputs): If your receiver does not have an LFE output, connect stereo RCA cables from your receiver's pre-out (left and right) to the corresponding Line In (L/R) inputs on the subwoofer.
Close-up of the Klipsch Sub-120 back panel showing Line In and LFE inputs

Abbildung 3: Ausführlich view of the Line In and LFE input connections on the subwoofer's rear panel.

4.3 Stromanschluss

Once audio connections are made, connect the provided power cord to the subwoofer's power input and then to a suitable wall outlet (100-240V, 50/60Hz 2A).

5. Bedienung des Subwoofers

The Klipsch Sub-120 features several controls on its rear panel to fine-tune its performance to your listening environment and preferences.

Klipsch Sub-120 back panel showing all controls and connections

Figure 4: Rear panel of the Klipsch Sub-120, illustrating the location of all controls and inputs.

5.1 Kontrollen überview

  • Lautstärkeregelung: Regelt den Gesamtausgangspegel des Subwoofers. Beginnen Sie mit einer niedrigen Einstellung und erhöhen Sie diese schrittweise, bis der Bass nahtlos mit Ihren Hauptlautsprechern verschmilzt.
  • LOW-PASS (Crossover) Control: This knob sets the upper frequency limit for the subwoofer. Frequencies above this setting will not be reproduced by the subwoofer. Adjust this to match the low-frequency capabilities of your main speakers. A common starting point is 80Hz, but it can be adjusted between 40Hz and 120Hz.
  • PHASENUMSCHALTUNG (0°/180°): This switch adjusts the phase of the subwoofer's output relative to your main speakers. Experiment with both settings to find the one that provides the most impactful and coherent bass response in your listening position.
  • ON/AUTO/OFF Switch:
    • AUF: Der Subwoofer bleibt permanent eingeschaltet.
    • WAGEN: The subwoofer automatically turns on when an audio signal is detected and enters standby mode after a period of inactivity.
    • AUS: Der Subwoofer ist ausgeschaltet.

6. Wartung

To ensure the longevity and optimal performance of your Klipsch Sub-120 subwoofer, follow these simple maintenance guidelines:

  • Reinigung: Use a dry, soft cloth to wipe down the cabinet. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the finish.
  • Grillpflege: The subwoofer features a removable grille. If cleaning is necessary, gently remove the grille and use a soft brush or vacuum cleaner with a brush attachment to remove dust.
  • Belüftung: Periodically check that the ventilation openings are clear of dust and debris to prevent overheating.
  • Lagerung: Wenn Sie den Subwoofer über einen längeren Zeitraum lagern, trennen Sie ihn vom Stromnetz und bewahren Sie ihn an einem kühlen, trockenen Ort auf, vorzugsweise in seiner Originalverpackung.

7. Fehlerbehebung

If you encounter issues with your Klipsch Sub-120 subwoofer, refer to the following common problems and solutions:

ProblemMögliche UrsacheLösung
Kein Ton vom Subwoofer
  • Netzkabel nicht angeschlossen oder Steckdose nicht aktiv.
  • Subwoofer is in OFF mode or AUTO mode without signal.
  • Audiokabel nicht angeschlossen oder defekt.
  • Receiver's subwoofer output is disabled or volume is too low.
  • Überprüfen Sie die Stromanschlüsse und die Steckdose.
  • Set ON/AUTO/OFF switch to ON or ensure audio signal is present for AUTO mode.
  • Verify audio cable connections; try a different cable.
  • Check receiver settings for subwoofer output and volume.
Distorted or Unclear Bass
  • GAIN (volume) set too high.
  • LOW-PASS (crossover) set incorrectly.
  • Falsche Phaseneinstellung.
  • Subwoofer placement issues.
  • Reduce the GAIN control on the subwoofer.
  • Adjust the LOW-PASS control to blend with main speakers.
  • Toggle the PHASE switch (0°/180°) to find the best sound.
  • Experimentieren Sie mit verschiedenen Subwoofer-Positionen.
Subwoofer Not Turning On Automatically
  • ON/AUTO/OFF switch not set to AUTO.
  • Input signal too low to trigger auto-on.
  • Ensure the switch is set to AUTO.
  • Increase the output level from your receiver's subwoofer output.

8. Spezifikationen

Detailed technical specifications for the Klipsch Synergy Black Label Sub-120 Subwoofer:

BesonderheitDetail
ModellnameSUB-120
LautsprechertypSubwoofer
Subwoofer-Durchmesser12 Zoll
Woofer-TypSpun copper front-firing Cerametallic woofers
Dauerhafte Leistung200 Watt
Dynamische Kraft400 Watt
Amplifier-TypDigitales Ampschwerer
FrequenzgangUp to 20 KHz (adjustable via Low-Pass filter)
KonnektivitätstechnologieWired (RCA Line In/LFE)
KontrollmethodeManual (Gain, Low-Pass, Phase, Power)
Produktabmessungen (T x B x H)19.25" x 14" x 16"
Artikelgewicht36.4 Pfund
FarbeSchwarz
MaterialWood cabinet, Copper woofer
StromquelleKabelgebundene Elektrik
Empfohlene VerwendungHome Theater, Televisions, Gaming Consoles, Streaming Devices
Diagram showing the dimensions of the Klipsch Sub-120 Subwoofer: 16 inches H, 14 inches W, 19.25 inches D

Figure 5: Dimensions of the Klipsch Synergy Black Label Sub-120 Subwoofer.

9. Garantie und Support

9.1 Garantieinformationen

The Klipsch Synergy Black Label Sub-120 Subwoofer comes with a Eingeschränkte Garantie. For specific terms, conditions, and duration of the warranty, please refer to the warranty card included with your product or visit the official Klipsch webWebsite.

9.2 Kundendienst

For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact Klipsch Customer Support. Contact information can typically be found on the Klipsch official webauf der Website oder auf der Produktverpackung.

Online-Ressourcen: Visit the official Klipsch webWebsite mit FAQs, Produktregistrierung und weiteren Support-Ressourcen.

© 2026 Klipsch. Alle Rechte vorbehalten.

Ask a question about this manual

Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.