1. Introducció
This manual provides essential information for the proper setup, operation, and maintenance of your KEF Q650c Center Channel Speaker. The KEF Q650c is engineered to accurately reproduce dialogue and central sound elements within a home theater system, ensuring a clear and immersive audio experience.
Key features include a revamped Uni-Q Driver Array with a damped tweeter loading tube for smooth treble frequencies, a central 6.5-inch Uni-Q Driver Array, and two flanking 6.5-inch bass drivers. The speaker also benefits from a closed-box midrange cabinet, which enhances clarity and delivers a cleaner, more defined bass response.

Image 1: KEF Q650c Center Channel Speaker, angled front view, black finish.
2. Informació de seguretat
- Col·locació: Ensure the speaker is placed on a stable, level surface to prevent it from falling.
- Ventilació: Do not block any ventilation openings. Allow adequate space around the speaker for proper airflow.
- Humitat: Do not expose the speaker to rain, moisture, or excessive humidity. Keep liquids away from the speaker.
- Calor: Keep the speaker away from heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
- Potència: This is a passive speaker and requires connection to an appropriate amplifier or AV receiver. Ensure the ampL'amplificador s'apaga abans de fer cap connexió.
- Neteja: Disconnect from power before cleaning. Use only a dry cloth.
3. Contingut del paquet
The KEF Q650c Center Channel Speaker package includes:
- 1 KEF Q650c Center Channel Speaker
Note: Magnetic grilles for the Q650c are sold separately and are not included in the standard package.
4. Configuració i col·locació
Optimal placement of the KEF Q650c is crucial for achieving the best sound performance in your home theater system.
4.1 Col·locació general
The center channel speaker should ideally be placed directly below or above your television screen, centered horizontally. Aim to position the speaker as close to ear level as possible when seated in your primary listening position. This ensures that dialogue and central sound effects appear to originate directly from the screen.

Image 2: KEF Q650c Center Channel Speaker on a media console.
4.2 Cabinet Placement
Due to its closed-box midrange cabinet design, the Q650c can be placed inside a cabinet or on a shelf without significant adverse effects on its bass performance, unlike ported speakers that require space for their rear ports. Ensure there is still adequate ventilation around the speaker to prevent overheating of any associated electronics.

Image 3: KEF Q650c in a home theater setup.
4.3 Acústica de l'habitació
Consider the acoustics of your room. Hard surfaces can reflect sound, while soft furnishings can absorb it. Experiment with speaker positioning and room treatments to achieve balanced sound. Avoid placing the speaker directly against a wall if possible, as this can sometimes lead to excessive bass.

Image 4: KEF Q650c in a comprehensive audio system.
5. Connexions
The KEF Q650c is a passive speaker and requires connection to an external amplifier or AV receiver. Ensure your amplifier/receiver is turned off before making any connections.
5.1 Cable de l'altaveu
Use high-quality speaker wire to connect the Q650c to the center channel output terminals on your amplifier or AV receiver. Observe correct polarity: connect the positive (+) terminal on the speaker to the positive (+) terminal on the amplifier, and the negative (-) terminal on the speaker to the negative (-) terminal on the ampmés viu.
5.2 Terminal Type
The Q650c typically features binding post terminals that accept bare wire, spade connectors, or banana plugs. Ensure connections are secure to prevent signal loss or short circuits.
6. Funcionament
Once properly connected to an amplifier or AV receiver, the KEF Q650c operates as part of your home theater system.
6.1 Encès
Enceneu el vostre receptor AV o amplifier. The speaker will receive its audio signal and power from this connected device.
6.2 Control de volum
Adjust the volume using the controls on your AV receiver or amplifier. The Q650c is designed to handle up to 150 Watts of amppotència de lificació.
6.3 Usos recomanats
The KEF Q650c is suitable for various audio applications, including:
- Sistemes de so envoltant
- Televisors
- Reproductors de DVD
- Music Players (as part of a multi-channel setup)
7. Manteniment
To ensure the longevity and optimal performance of your KEF Q650c speaker, follow these maintenance guidelines:
- Neteja: Gently wipe the speaker cabinet with a soft, dry, lint-free cloth. Do not use abrasive cleaners, waxes, or solvents, as these can damage the finish.
- Pols: Regularly dust the speaker, especially the driver cones, using a soft brush or a microfiber cloth.
- Eviteu la llum solar directa: Prolonged exposure to direct sunlight can cause fading or damage to the cabinet finish.
- Condicions ambientals: Maintain a stable room temperature and humidity level. The speaker is not water-resistant.
8. Solució De Problemes
If you encounter issues with your KEF Q650c speaker, refer to the following common troubleshooting steps:
8.1 Sense so
- Comproveu les connexions: Ensure all speaker wires are securely connected to both the speaker and the amplifier/receiver, observing correct polarity (+ to + and - to -).
- AmpConfiguració del receptor/receptor: Verifiqueu que el vostre amplifier or AV receiver is powered on, the correct input source is selected, and the volume is turned up. Check the speaker output settings in your receiver's menu to ensure the center channel is enabled.
- Source Material: Test with different audio sources to rule out an issue with the media itself.
8.2 So distorsionat
- Nivell de volum: Baixeu el volum del vostre amplificador/receptor. Sovint es produeix distorsió quan el ampEl lifier està sobrecarregat.
- Cable de l'altaveu: Inspect speaker wires for any fraying, damage, or loose connections that could cause interference.
- AmpPotència més viva: Assegureu-vos el vostre amplifier's power output is within the recommended range for the Q650c (up to 150 Watts).
- Acústica de l'habitació: Excessive bass or harsh treble can sometimes be mitigated by adjusting speaker placement or using room acoustic treatments.
9. Especificacions
| Nom del model | Q650c |
| Tipus d'altaveu | Canal central |
| Tipus de muntatge | Magnetic Mount (for grilles) |
| Material | Paper, polypropylene, Kevlar, aluminum, titanium or silk (driver materials) |
| Dimensions del producte (P x A x A) | 17 "P x 41.5" W x 13.5" H |
| Pes de l'article | 30 lliures (13600 grams) |
| Impedància | 8 ohms |
| Potència de sortida màxima dels altaveus | 150 watts |
| Resposta de freqüència | 64 Hz (límit inferior) |
| Tecnologia de connectivitat | Amb cable |
| Mode de sortida d'àudio | Estèreo, Envoltant |
| Diàmetre del woofer | 6.5 polzades |
| Diàmetre del Tweeter | 25 mil·límetres |
| Ús interior/exterior | Interior |
| Nivell de resistència a l'aigua | No resistent a l'aigua |
| UPC | 637203215841 |
10. Garantia i Suport
10.1 Informació de la garantia
The KEF Q650c Center Channel Speaker comes with a Limited Warranty. Please refer to the warranty documentation provided with your purchase for specific terms, conditions, and duration of coverage.
10.2 Atenció al client
For technical assistance, service, or further inquiries, please visit the official KEF website or contact KEF customer support directly. You can often find detailed FAQs, product registration, and contact information on their support pages.
Fabricant: KEF





