Model: 51KSC6904
This manual provides detailed instructions for the installation, operation, and maintenance of your Kicker KS-Series 6x9 Coaxial Speakers (Model 51KSC6904). Please read this manual thoroughly before attempting installation or operation to ensure proper use and to maximize the performance and longevity of your speakers.
Before beginning installation, please verify that all the following items are included in your package:

Image: Pair of Kicker KS-Series 6x9 Coaxial Speakers with grilles.

Image: One Kicker KS-Series 6x9 Coaxial Speaker with its protective grille.

Image: One Kicker KS-Series 6x9 Coaxial Speaker without its grille, showing the cone and tweeter.

Image: A single protective grille for the Kicker KS-Series 6x9 speaker.

Image: Kicker branded can koozie, included as a bundle accessory.
The Kicker KS-Series speakers feature a thin-mount design, allowing them to fit easily behind most factory grilles and in various vehicle applications. Before mounting, ensure the chosen location provides sufficient clearance for the speaker's depth and diameter.
Use the provided mounting hardware to secure the speakers firmly in place. Avoid over-tightening screws, which can damage the speaker frame.
These speakers have a rated impedance of 4 ohms. Connect the speakers to an amplifier that is stable at a 4-ohm load and provides a recommended power output of up to 150 watts RMS per channel. Ensure correct polarity (+ to + and - to -) when connecting the speaker wires to both the speaker terminals and the amplifier terminals. Incorrect polarity can lead to reduced bass response and poor sound imaging.
It is recommended to use high-quality speaker wire of appropriate gauge (e.g., 16-gauge or thicker) for optimal power transfer and sound quality.
Once installed, connect your audio source to the amplifer. Start med amplifier's gain settings at their minimum and gradually increase them until the desired volume is achieved without distortion. These speakers are designed to deliver clear and detailed audio reproduction across a wide frequency range.
Indbrudsperiode: Like many audio components, these speakers may benefit from a break-in period. Play them at moderate volumes for several hours before attempting to play them at their maximum capabilities. This allows the speaker's suspension components to loosen and perform optimally.
If you experience issues with your Kicker KS-Series speakers, refer to the table below for common problems and their solutions:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen lyd fra højttalerne | Løse eller afbrudte ledninger AmpLifier ikke tændt Incorrect input selection on head unit | Tjek alle højttalere og amplifier tilslutninger Verificere amplifier power and fuse Ensure correct audio source is selected |
| Forvrænget eller uklar lyd | AmpForstærkningen er indstillet for højt Højttalerledninger kortsluttet Beskadiget højttalerkegle/surroundhøjttaler | Reducere ampforstærkning Inspect wiring for shorts Contact Kicker support for speaker inspection/replacement |
| Svag eller ingen bas | Forkert højttalerpolaritet Forkerte delefilterindstillinger Utilstrækkelig amplifier effekt | Verify speaker wire polarity Adjust head unit or amplifier crossover settings Sikre amplifier provides adequate power |
| Intermitterende lyd | Løse forbindelser Overophedning amplivligere | Check all wiring connections Sørg for ordentlig ventilation ift. amplifier; reduce volume |
| Feature | Specifikation |
|---|---|
| Højttaler design | 2-vejs koaksial |
| Woofer størrelse | 6x9 tommer |
| Diskantstørrelse | 1 tommer |
| Nominel impedans | 4 Ohm |
| Anbefales AmpLifier Power (RMS) | 150 watt |
| Følsomhed | 92 dB |
| Frekvensrespons | 30-21 kHz |
| Monteringshuls diameter | 5-11/16 x 8-7/16 inches (14.45 x 21.43 cm) |
| Top Mount Depth | 3-3/16 tommer (8.1 cm) |
| Bottom Mount Depth | 3-11/16 tommer (9.37 cm) |
| Diskantfremspring | 1/16 tomme (0.16 cm) |
| Bashøjttaler materiale | Polypropylene with Rubber Surrounds |
| Diskant-materiale | Silk-dome |
| Varens vægt | 15.9 pund (7.21 kg) |
| Pakkedimensioner | 18.63 x 12 x 4.44 tommer (47.32 x 30.48 x 11.28 cm) |
Kicker products are designed for durability and performance. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Kicker webwebsted. Gem din købsbevis til garantikrav.
If you require technical assistance, troubleshooting beyond this manual, or warranty service, please contact Kicker customer support through their official website or authorized service centers. Provide your product model number (51KSC6904) and a detailed description of the issue when contacting support.
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