Kicker 51KSS6504 KS Series 6.5" 125W RMS (250W Peak Power Handling) 4 Ohms, 2-way Car Component Speaker System
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What's Inside?
- • (2) 6.5" KS Series 2-way Car Component Speaker System
- • (2) KSS650 Woofers
- • (2) Phase Plugs (installed)
- • (2) 1" Tweeters (each with 6" Wire attached)
- • (2) Multi-purpose woofer brackets
- • (2) Woofer Grilles
- • (2) Grille Mounting Rings
- • (2) Crossovers
- • (2) Upper Tweeter Mounting Posts
- • (2) Lower Tweeter Mounting Posts
- • (2) Tweeter Housings
- • (2) Tweeter Housing Washers
- • (2) Flush Mount Rings (tweeter)
- • (2) Front Angle Rings (tweeter)
- • (2) Back Angle Rings (tweeter)
- • (2) Short Mounting Nuts (tweeter)
- • (2) Long Mounting Nuts (tweeter)
- • (2) Surface Mount Pods
- • (2) Pod Nuts
- • Tweeter Tool
- • (2) 10" Zip Ties
- • (2) Adhesive Backed Foam Pads
- • Grille putty
- • (4) Red Plastic Wire Caps
- • (2) M4x7mm Machine Screws
- • (12) 1-1/8" Screws
- • Quick-Start Guide (English/ Spanish/ German/ French)
- • Woofer Template
- • Owner's Manual
Why Choose Kicker 51KSS6504 Component System?
Where Concert-Level Volume Meets Subtle Precision
KICKER KS-Series Speakers provide concert-level volume with smoothness and subtlety for discerning ears. Dampened polypropylene cones and robust rubber surrounds enhance midrange and bass precision, while premium silk-dome tweeters deliver natural, detailed highs.
Unleash Sonic Freedom
Explore your music in a versatile way with a component system featuring separate tweeters or a high-end coaxial system. The removable bullet-style phase plug on the woofers is replaced with a special adapter, enabling the 25mm silk-dome tweeters to rotate and tilt. This provides superior off-axis performance and offers more design options for your system. Recommended power ranges from 15 to 125 watts. Refer below for additional details.
Concert-Quality Sound with Versatile Installation
Experience center-stage performance with smooth, detailed audio that lets you play at concert-like volumes without distortion. These speakers offer high power handling with 15–125 Watts RMS and peak power up to 250 Watts. 1" silk-dome tweeters deliver natural, clear highs for vocals and instruments, while polypropylene woofers with rubber surrounds provide precise midrange and satisfying bass. Designed for flexibility, they can be used in component or coaxial setups, allowing tweeters to be mounted separately for superior off-axis performance or on the woofer for a 2-way configuration.
Frequently Asked Questions (FAQ)
- • Why do my woofers sound weak after installing the component system?
Weak midbass is usually caused by air leaks around the mounting surface or incorrect speaker polarity. Verify the wiring and use the supplied foam pads to create a proper seal against the door.
- • Can I use the included multi-purpose woofer brackets with factory mounting locations?
Yes. The brackets are designed to simplify installation in many factory speaker openings and reduce the need for custom adapters.
- • Why do my tweeters sound too harsh after installation?
High-frequency harshness is often caused by tweeter placement or excessive treble settings on the head unit. Repositioning the tweeters and reducing the treble EQ can produce a smoother sound.
- • Do I need to connect the included crossovers?
Yes. The passive crossovers direct the correct frequencies to the woofers and tweeters while helping prevent damage from unwanted signals.
- • Why does one tweeter stop working after driving over bumps?
Road vibration can loosen wiring or crossover connections if they are not securely mounted. Inspect the terminals and fasten the crossover firmly to prevent intermittent audio.
- • Can this component system be powered by an aftermarket amplifier?
Yes. A properly matched amplifier provides cleaner power, greater headroom, and improved overall sound quality compared to most factory radios.
- • Why do I hear vibrations from the door panel after upgrading the speakers?
The increased output can cause factory trim panels, clips, or wiring to vibrate. Tightening loose components and adding sound-deadening material usually eliminates the rattles.
- • What are the installed phase plugs on the woofers used for?
Phase plugs improve midrange dispersion while helping dissipate heat from the voice coil area. They are a permanent part of the woofer design and should not be removed.
- • Can I choose between flush-mount and surface-mount tweeter installation?
Yes. The package includes flush-mount rings, angle rings, surface-mount pods, mounting posts, and hardware for several installation methods.
- • Can I install this component system without modifying my factory wiring?
In many vehicles, yes, although the installation depends on your factory speaker connectors and mounting locations. Some applications may require adapter harnesses or minor wiring modifications for a proper connection.
- Diameter : 6.5 Inch
- Sensitivity : 90 dB
- Frequency Response : 35-21000 Hz
- Peak Power Handling : 250 Watts
- RMS Power Handling : 125 Watts
Features:
- Center Stage Performance: Play at concert-like volume while preserving smooth, detailed sound.
- High Power Handling: Works best with 15–125 watts RMS and peak power handling up to 250 watts.
- Smooth Silk-Dome Tweeters: 1" tweeters provide natural, clear highs for vocals and instruments.
- Polypropylene Woofers with Rubber Surrounds: Deliver precise midrange and satisfying bass.
- Component or Coaxial Option: Tweeters can be mounted separately for superior off-axis performance or mounted on the woofer for 2-way configuration.
- Tweeter Flexibility: Rotating and tilting tweeters with included articulating pods for multiple mounting options.
- Crossovers Included: Outboard crossovers allow precise frequency separation and adjustable tweeter levels.
- Thin-Mount Design: Low-profile woofers fit more vehicles, minimal tweeter protrusion.
- Grilles Included: Protect your speakers while keeping installation neat.
Specifications:
- Speaker Design: 2-Way Component / Coaxial Convertible
- Speaker Size: 6-1/2" (160 mm)
- Woofer Design: Cone
- Woofer Material: Polypropylene
- Woofer Surround Material: Rubber
- Tweeter Design: 1" Dome
- Tweeter Material: Silk
- Impedance: 4 Ω
- Sensitivity (1W @ 1m): 90 dB
- Frequency Response: 35 – 21,000 Hz
- Maximum RMS Wattage: 125 W
- Peak Power Handling: 250 W
- Woofer Mounting Hole Diameter: 4-13/16" (123 mm)
- Top Mount Depth: 1-13/16" (46 mm)
- Bottom Mount Depth: 2-3/16" (54 mm)
- Flush Mount Tweeter Hole Diameter: 1-3/4" (45 mm)
- Flush Mount Tweeter Depth: 11/16" (17 mm)
- High Pass Crossover: 12 dB @ 4,000 Hz
- Low Pass Crossover: None
- High-Frequency Output Attenuation: 0, 4.5, 9 dB
- Mounting Height: 0.378"
- Frame Width: 6.242"
- Frame Length: 6.242"
- Grilles Included: Black, Steel Mesh, Plastic Frame
- Weather-Resistant: No
- UPC: 713034045335
- Weight: 4
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
