Klipsch SUB-120

Klipsch Synergy Black Label Sub-120 Subwoofer Instruction Manual

1. Isingeniso

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. Ulwazi Olubalulekile Lokuphepha

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.

  • Umthombo wamandla: Only connect the subwoofer to a power supply of the type described in the operating instructions or as marked on the appliance.
  • Ukungenisa umoya: Ensure proper ventilation. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
  • Ukushisa: Ungafaki eduze kwanoma yimiphi imithombo yokushisa njengama-radiator, amarejista okushisa, izitofu, noma ezinye izinto ezisetshenziswayo (okuhlanganisa ampama-lifiers) akhiqiza ukushisa.
  • Amanzi Nomswakama: Do not use this apparatus near water or in excessively humid environments.
  • Ukuhlanza: Hlanza kuphela ngendwangu eyomile.
  • Ukusevisa: Ungazami ukuletha lo mkhiqizo ngokwakho. Dlulisela konke ukwesekwa kubasebenzi bensizakalo abafanelekayo.

3. Yini EseBhokisini

Lapho ukhipha, sicela uqinisekise ukuthi zonke izinto ezilandelayo zifakiwe:

  • Klipsch Synergy Black Label Sub-120 Subwoofer
  • Intambo Yamandla
  • Incwadi Yokufundisa (le dokhumenti)

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

4. Setha

4.1 Ukubekwa kwe-Subwoofer

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 Izixhumanisi

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

  • LFE (Low-Frequency Effects) Input: 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

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

4.3 Ukuxhuma Amandla

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. Ukusebenzisa i-Subwoofer

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 Ilawula ngaphezuluview

  • GAIN (Volume) Control: Ilungisa izinga lokukhipha lonke le-subwoofer. Qala ngokusetha okuphansi bese ukhulisa kancane kancane kuze kube yilapho i-bass ihlangana kahle nezipikha zakho eziyinhloko.
  • 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.
  • PHASE Switch (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:
    • ON: The subwoofer remains continuously powered on.
    • OKUZENZAKALELAYO: The subwoofer automatically turns on when an audio signal is detected and enters standby mode after a period of inactivity.
    • VALIWE: The subwoofer is powered off.

6. Isondlo

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

  • Ukuhlanza: Use a dry, soft cloth to wipe down the cabinet. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the finish.
  • Ukunakekelwa kwe-Grille: 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.
  • Ukungenisa umoya: Periodically check that the ventilation openings are clear of dust and debris to prevent overheating.
  • Isitoreji: If storing the subwoofer for an extended period, disconnect it from power and store it in a cool, dry place, preferably in its original packaging.

7. Ukuxazulula izinkinga

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

InkingaImbangela EngenzekaIsixazululo
Awukho Umsindo ovela ku-Subwoofer
  • Intambo kagesi ayixhunyiwe noma iplagi ayisebenzi.
  • Subwoofer is in OFF mode or AUTO mode without signal.
  • Ikhebula lomsindo alixhunyiwe noma alinankinga.
  • Receiver's subwoofer output is disabled or volume is too low.
  • Check power connections and wall outlet.
  • 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.
  • Ukuhlelwa kwesigaba okungalungile.
  • 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.
  • Experiment with different subwoofer placements.
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. Imininingwane

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

IsiciImininingwane
Igama LemodeliI-SUB-120
Uhlobo lwesipikaI-Subwoofer
Ububanzi be-Subwoofer12 amayintshi
Uhlobo lwe-WooferSpun copper front-firing Cerametallic woofers
Amandla Aqhubekayo200 Watts
Amandla Anamandla400 Watts
AmpUhlobo lwe-lifierIdijithali Ampokokuphila
Impendulo YemvamisaUp to 20 KHz (adjustable via Low-Pass filter)
Ubuchwepheshe bokuxhumanaWired (RCA Line In/LFE)
Indlela YokulawulaManual (Gain, Low-Pass, Phase, Power)
Ubukhulu bomkhiqizo (D x W x H)19.25" x 14" x 16"
Isisindo sento36.4 Amakhilogremu
UmbalaMnyama
OkubalulekileWood cabinet, Copper woofer
Umthombo wamandlaI-Corded Electric
Ukusetshenziswa OkunconyiweHome 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. Iwaranti kanye Nokusekela

9.1 Ulwazi Lwewaranti

The Klipsch Synergy Black Label Sub-120 Subwoofer comes with a Iwaranti EnomkhawukoUkuze uthole imigomo ethile, imibandela, kanye nobude bewaranti, sicela ubheke ikhadi lewaranti elifakwe nomkhiqizo wakho noma uvakashele i-Klipsch esemthethweni. webindawo.

9.2 Ukwesekwa Kwamakhasimende

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 webindawo noma emaphaketheni omkhiqizo.

Izinsiza eziku-inthanethi: Visit the official Klipsch webisayithi lama-FAQ, ukubhaliswa komkhiqizo, nezinsiza ezengeziwe zosekelo.

© 2026 Klipsch. Wonke amalungelo agodliwe.

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