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.
Saatos dipasang, sambungkeun sumber audio anjeun ka amplifier. Start with the 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.
Periode istirahat: 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:
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Teu aya sora ti panyatur | kabel leupas atawa dipegatkeun Amplifier teu Powered on Incorrect input selection on head unit | Pariksa sagala speaker na ampsambungan lifier Verifikasi amplifier power and fuse Ensure correct audio source is selected |
| Sora menyimpang atawa teu jelas | Ampgain lifier diatur teuing tinggi Kabel spiker disingget Kone/surround speaker ruksak | Ngurangan ampgain liifier Inspect wiring for shorts Contact Kicker support for speaker inspection/replacement |
| Lemah atanapi henteu bass | Incorrect speaker polarity Setélan crossover salah Teu cukup ampkakuatan Lifier | Verify speaker wire polarity Adjust head unit or amplifier crossover settings Mastikeun amplifier provides adequate power |
| Sora intermittent | sambungan leupas Overheating amppangagung | Pariksa sadaya sambungan kabel Pastikeun ventilasi ditangtoskeun pikeun amplifier; reduce volume |
| Fitur | Spésifikasi |
|---|---|
| Desain Speaker | 2-Jalan Coaxial |
| Ukuran Woofer | 6 x 9 inci |
| Ukuran Tweeter | 1 inci |
| Impedansi dipeunteun | 4 ohm |
| Dianjurkeun AmpDaya panguat (RMS) | 150 Watt |
| Sensitipitas | 92 dB |
| Réspon Frékuénsi | 30-21k Hz |
| Diaméterna liang ningkatna | 5-11/16 x 8-7/16 inches (14.45 x 21.43 cm) |
| Top Mount Depth | 3-3/16 inci (8.1 cm) |
| Bottom Mount Depth | 3-11/16 inci (9.37 cm) |
| Tweeter Tonjolan | 1/16 inci (0.16 cm) |
| Bahan Woofer | Polypropylene with Rubber Surrounds |
| Bahan Tweeter | Silk-dome |
| Item Beurat | 15.9 pon (7.21 kg) |
| Ukuran Paket | 18.63 x 12 x 4.44 inci (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 websitus. Simpen bukti pameseran anjeun pikeun klaim garansi.
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.
![]() |
KICKER KSS269 Components Owner's Manual This owner's manual provides detailed installation and warranty information for the KICKER KSS269 KS Series component speakers. Learn about specifications, wiring, mounting, and product care. |
![]() |
Buku Panduan sareng Panduan Pamasangan Spiker Coax KICKER Seri KS Buku panduan pikeun nu boga Speaker Coax KICKER KS Series anu ngajelaskeun spésifikasi, pamasangan, kabel, pamasangan, sareng garansi. Diajar kumaha ningkatkeun sistem audio kendaraan anjeun nganggo speaker efisiensi tinggi ieu. |
![]() |
Buku Panduan Pamilik Spiker Komponen KICKER Seri KS Buku panduan lengkep pikeun speaker komponén KICKER KS Series, anu ngawengku pamasangan, spésifikasi, kabel, pamasangan, sareng inpormasi garansi. |
![]() |
Spiker Komponen KICKER Seri KS: Buku Panduan, Panduan Pemasangan, sareng Spesifikasi Buku panduan lengkep pikeun nu boga sareng pituduh pamasangan pikeun speaker komponén KICKER KS Series, kalebet spésifikasi, diagram kabel, pitunjuk pamasangan, peringatan kaamanan, sareng inpormasi garansi. Diajar kumaha masang sareng ngaoptimalkeun sistem audio mobil anjeun. |
![]() |
Buku Panduan pikeun Pamilik Spiker Koaksial KICKER KM604 Buku panduan lengkep pikeun nu boga speaker koaksial KICKER KM604, anu ngajelaskeun spésifikasi, pamasangan, kabel, pamasangan, sareng inpormasi garansi pikeun sistem audio laut sareng luar ruangan. |
![]() |
Buku Panduan sareng Panduan Pamasangan Speaker KICKER MSC Coaxial Marine Buku panduan resmi pikeun nu boga sareng pituduh pamasangan pikeun KICKER MSC Series Premium Marine Coaxial. Ngawengku spésifikasi, kabel, pamasangan, pamasangan gril, sareng inpormasi garansi pikeun lingkungan laut sareng luar ruangan. |