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 ampలిఫైయర్. దీనితో ప్రారంభించండి 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.
బ్రేక్-ఇన్ పీరియడ్: 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:
| సమస్య | సాధ్యమైన కారణం | పరిష్కారం |
|---|---|---|
| స్పీకర్ల నుండి శబ్దం లేదు | వదులుగా లేదా డిస్కనెక్ట్ చేయబడిన వైరింగ్ Ampలైఫైయర్ ఆన్ చేయబడలేదు Incorrect input selection on head unit | అన్ని స్పీకర్లను తనిఖీ చేయండి మరియు ampజీవితకాల కనెక్షన్లు ధృవీకరించండి amplifier power and fuse Ensure correct audio source is selected |
| వక్రీకరించబడిన లేదా అస్పష్టమైన ధ్వని | Ampలిఫైయర్ లాభం చాలా ఎక్కువగా సెట్ చేయబడింది స్పీకర్ వైర్లు షార్ట్ చేయబడ్డాయి దెబ్బతిన్న స్పీకర్ కోన్/సరౌండ్ | తగ్గించండి ampజీవనాధార లాభం షార్ట్స్ వైరింగ్ తనిఖీ చేయండి Contact Kicker support for speaker inspection/replacement |
| బలహీనంగా ఉంది లేదా బాస్ లేదు | Incorrect speaker polarity క్రాస్ఓవర్ సెట్టింగ్లు తప్పుగా ఉన్నాయి సరిపోదు ampబలవంతపు శక్తి | Verify speaker wire polarity Adjust head unit or amplifier crossover settings నిర్ధారించండి amplifier provides adequate power |
| అడపాదడపా ధ్వని | వదులైన కనెక్షన్లు వేడెక్కడం ampజీవితకాలం | Check all wiring connections Ensure proper ventilation for amplifier; reduce volume |
| ఫీచర్ | స్పెసిఫికేషన్ |
|---|---|
| స్పీకర్ డిజైన్ | 2-మార్గం కోక్సియల్ |
| వూఫర్ సైజు | 6x9 అంగుళాలు |
| ట్వీటర్ పరిమాణం | 1 అంగుళాలు |
| రేట్ చేయబడిన ఇంపెడెన్స్ | ౪౦ ఓం |
| సిఫార్సు చేయబడింది Ampజీవిత శక్తి (RMS) | 150 వాట్స్ |
| సున్నితత్వం | 92 డిబి |
| ఫ్రీక్వెన్సీ రెస్పాన్స్ | 30-21 కే హెర్ట్జ్ |
| మౌంటు హోల్ వ్యాసం | 5-11/16 x 8-7/16 inches (14.45 x 21.43 cm) |
| Top Mount Depth | 3-3/16 అంగుళాలు (8.1 సెం.మీ.) |
| Bottom Mount Depth | 3-11/16 అంగుళాలు (9.37 సెం.మీ.) |
| ట్వీటర్ ప్రోట్రూషన్ | 1/16 అంగుళం (0.16 సెం.మీ.) |
| వూఫర్ మెటీరియల్ | Polypropylene with Rubber Surrounds |
| ట్వీటర్ మెటీరియల్ | Silk-dome |
| వస్తువు బరువు | 15.9 పౌండ్లు (7.21 కిలోలు) |
| ప్యాకేజీ కొలతలు | 18.63 x 12 x 4.44 అంగుళాలు (47.32 x 30.48 x 11.28 సెం.మీ.) |
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 webవారంటీ క్లెయిమ్ల కోసం మీ కొనుగోలు రుజువును ఉంచండి.
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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