Kicker 51KSS6904 6x9" Component Speaker System w/1" tweeters 4ohm
SKU:KIC-51KSS6904
Features:
- High power handling
- Silk-dome tweeters for a smooth sound
- Polypropylene woofer and tough rubber surrounds
- Thin-mount design easily fits behind factory grilles
- Four tweeter mounting options
- Articulating tweeter pod included
- Smaller crossover makes mounting even easier
- Grilles included
Specifications:
- Woofer [in, mm]: 6x9, 160x230
- Tweeter [in,mm]: 1, 25
- Dome Material: Silk
- Rated Impedance [?]: 4
- Recommended Amplifier Power [Watts RMS]: 15-150
- Sensitivity [1W, 1m]: 92
- Frequency Response [Hz]: 35-21k
- High Pass [dB], at Frequency [Hz]: 12, 4,000
- Low Pass [dB], at Frequency [Hz]: none
- High Frequency Output Attenuation [dB]: 0, 4.5, 9
- This item is Refurbished
Upgrade your vehicle's audio clarity and power with the Kicker 51KSS6904 6x9" Component Speaker System, crafted for high-performance sound with precise imaging and detail. This premium set includes 6x9-inch polypropylene woofers and separate 1-inch silk dome tweeters, delivering smooth, dynamic frequency response across lows, mids, and highs. With a 4-ohm impedance and power handling up to 150 watts RMS (300 watts peak per set), these speakers are ideal for serious car audio enthusiasts looking to add high-end separation and detail to their system.
Designed as part of Kicker’s elite KS-Series, the 51KSS6904 speakers feature a low-profile design for easy installation in most factory 6x9” locations, while still offering a dramatic upgrade in sound quality. The external crossovers ensure precise frequency distribution between the woofer and tweeter, optimizing clarity and minimizing distortion. The 1" tweeters can be flush-, surface-, or angle-mounted, allowing flexible placement for optimal stereo imaging and staging.
Whether you're building a custom system or upgrading your factory sound, the Kicker 51KSS6904 component speaker system delivers audiophile-level performance in a durable, vehicle-friendly package. Enjoy rich midbass, crisp vocals, and silky highs—all backed by Kicker’s industry-leading engineering and reliability. It’s the perfect choice for drivers who expect premium sound, superior build quality, and total control over their in-car audio experience.
SKU:KIC-51KSS6904
Features:
- High power handling
- Silk-dome tweeters for a smooth sound
- Polypropylene woofer and tough rubber surrounds
- Thin-mount design easily fits behind factory grilles
- Four tweeter mounting options
- Articulating tweeter pod included
- Smaller crossover makes mounting even easier
- Grilles included
Specifications:
- Woofer [in, mm]: 6x9, 160x230
- Tweeter [in,mm]: 1, 25
- Dome Material: Silk
- Rated Impedance [?]: 4
- Recommended Amplifier Power [Watts RMS]: 15-150
- Sensitivity [1W, 1m]: 92
- Frequency Response [Hz]: 35-21k
- High Pass [dB], at Frequency [Hz]: 12, 4,000
- Low Pass [dB], at Frequency [Hz]: none
- High Frequency Output Attenuation [dB]: 0, 4.5, 9
- This item is Refurbished
Upgrade your vehicle's audio clarity and power with the Kicker 51KSS6904 6x9" Component Speaker System, crafted for high-performance sound with precise imaging and detail. This premium set includes 6x9-inch polypropylene woofers and separate 1-inch silk dome tweeters, delivering smooth, dynamic frequency response across lows, mids, and highs. With a 4-ohm impedance and power handling up to 150 watts RMS (300 watts peak per set), these speakers are ideal for serious car audio enthusiasts looking to add high-end separation and detail to their system.
Designed as part of Kicker’s elite KS-Series, the 51KSS6904 speakers feature a low-profile design for easy installation in most factory 6x9” locations, while still offering a dramatic upgrade in sound quality. The external crossovers ensure precise frequency distribution between the woofer and tweeter, optimizing clarity and minimizing distortion. The 1" tweeters can be flush-, surface-, or angle-mounted, allowing flexible placement for optimal stereo imaging and staging.
Whether you're building a custom system or upgrading your factory sound, the Kicker 51KSS6904 component speaker system delivers audiophile-level performance in a durable, vehicle-friendly package. Enjoy rich midbass, crisp vocals, and silky highs—all backed by Kicker’s industry-leading engineering and reliability. It’s the perfect choice for drivers who expect premium sound, superior build quality, and total control over their in-car audio experience.
Although many orders are shipped the same day that we receive them, due to a variety of factors it can take up to 24 hours to process your credit card information and ship your order. FedEx picks up shipments daily, Monday through Friday around 4:00 PM (Eastern Time). They DO NOT operate on weekends or holidays. If you place an order for shipping on Friday night, the next available shipping day is Monday.


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- We are not responsible for any shipping and/or handling charges to return an item to HiFiSoundConnection. We will pay the shipping of replacements back to your location.
- Your refund will be subject to a 20% restocking fee with a $10.00 minimum fee.
- If exchanging you will NOT be subject to the 20% restocking fee. You WILL have to pay the return shipping costs.
- We doNOTrefund the amount you paid for shipping, duties, taxes, or any other charge incurred getting the item to your location.
- We reserve the right to charge a 35.00 flat fee on warranty / exchanges if the original product packaging is not included.
- Other fees associated with items not included with the returned merchandise such as bass knobs, fuse holders, manuals, etc that were not included with the package are also subject to additional fees depending on the item not returned.
- All returns require an RMA (return merchandise authorization) number. Any packages sent back without an RMA number will be delayed and possibly rejected. Please contact us to obtain an RMA number.
- All returns will be tested before any refund is given.
- All International Sales are final, the return/exchange policy does not apply to International orders
- The return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection.
- We are not responsible for any shipping and / or handling charges to return a defective item to HiFiSoundConnection.
- We will pay for the shipping on the replacement product going back to your location.
- We reserve the right to refer you to the manufacturer for any warranty exchanges.
- We reserve the right to switch you to a comparable product if the original product is out of stock or discontinued.
- We will not send your replacement item until we have received and checked in the defective product, this may take up to5 business days. All returns will be tested before any refund is given.
- Any item that is returned MUST first have RMA (return merchandise authorization) number before sending the package, if the package does not have an RMA number clearly on the outside of the return packaging it will be automatically refused. Please contact us to obtain an RMA number.
- Subwoofer Exception: Our warranty does not cover blown voice coils, or subwoofers that have been punctured. This is considered abuse by the manufacturer and is not covered under warranty.
- Defective items cannot be returned for a refund.
- All International Sales are final, the return/exchange policy does not apply to International orders
- The return policy does not cover damage due to improper installation, if an item was physically altered by you, or services performed by anyone other than HiFiSoundConnection.















