Description
Included in this kit
This bundle includes a Kicker 51KSS6504 KS-Series 6.5" Component system with 1" tweeters, 4-Ohm, Pair, a Kicker 51KSC6904 KS-Series 6x9" Coaxial Speakers with 1" tweeters, 4-Ohm, Pair, and a Kicker 51HS12 Hideaway Compact Powered Subwoofer, 12-Inch.
1x Kicker 51KSS6504 KS-Series 6.5" Component system with 1" tweeters, 4-Ohm, Pair (51KSS6504)
Kicker 51KSS6504 KS Series 6.5" Component System With 1" Tweeters, 4ohm
KICKER KS-Series Speakers let you play at concert-like volume, yet maintain the smoothness and subtlety to please even the most selective ear. Internally dampened polypropylene cones and durable rubber surrounds assist the woofers in creating precise midrange and bass, while high-quality silk-dome tweeters deliver natural, detailed highs.
Experience your music as a component system with separate tweeters, or as a high-end coaxial system. The woofers’ removable bullet-style phase plug is replaced with a special adapter, allowing the 25 millimeter, silk-dome tweeters to rotate and tilt. You get more system design options and superior off-axis performance. They work best with 15 to 125 watts of recommended power. See below for more details.
• 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]: 6-½, 160
• Tweeter [in,mm]: 1, 25
• Dome Material: Silk
• Rated Impedance [Ω]: 4
• Recommended Amplifier Power [Watts RMS]: 125
• Sensitivity [1W, 1m]: 90
• Frequency Response [Hz]: 35-21k
• Woofer Mounting Hole Diameter [in, mm]: 4-13⁄16 , 123
• Woofer Bottom Mount Depth [in, mm]: 1-13⁄16 , 46
• Flush Mount Tweeter Hole Diameter [in,mm]: 1-¾, 45
• Flush Mount Tweeter Depth [in,mm]: 11⁄16 , 17
• 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
1x Kicker 51KSC6904 KS-Series 6x9" Coaxial Speakers with 1" tweeters, 4-Ohm, Pair (51KSC6904)
Kicker 51KSC6904 KS Series 6x9" Coaxial Speakers With .75" Tweeters, 4ohm
KICKER’s elite KS-Series Coaxial Speakers upgrade your audio to new levels of accuracy with extended frequency response and the smoothest highs.
Potent Performance - KICKER KS-Series Speakers let you play at concert-like volume, yet maintain the smoothness and subtlety to please even the most selective ear. Internally dampened polypropylene cones and durable rubber surrounds assist the woofers in creating precise midrange and midbass, while high-quality silk-dome tweeters deliver natural, detailed highs.
With less than a 3-inch mounting depth and just three millimeters of tweeter protrusion, the KSC690 is a perfect fit in almost every vehicle on the road today. They work best with 15 to 150 watts of recommended power. See below for more details.
• High power handling
• Silk-dome tweeters for a smooth sound
• Polypropylene woofer and tough rubber surrounds
• Thin-mount design easily fits behind factory grilles
• Grilles included
Specifications -
• Speaker Design: 2-Way
• Woofer [in, mm]: 6 x 9, 160 x 230
• Tweeter [in, mm]: 1, 25
• Rated Impedance [Ω]: 4
• Recommended Amplifier Power [Watts RMS]: 150
• Sensitivity [1W, 1m]: 92
• Frequency Response [Hz]: 30-21k
• Mounting Hole Diameter [in, mm]: 5-11/16 x 8-7/16, 144 x 215
• Top Mount Depth [in, mm]: 3-3/16, 81
• Bottom Mount Depth [in,mm]: 3-11/16, 93
• Tweeter Protrusion [in,mm]: 1/16, 1
• Grilles: Yes
• Tweeter Magnet Material: Neodymium
• Tweeter Dome Material: Silk
• Woofer Cone Material: Polypropylene
• Woofer Surround Material: Rubber
1x Kicker 51HS12 Hideaway Compact Powered Subwoofer, 12-Inch (51HS12)
KICKER® Hideaway™ • Powered 12" Under-Seat Subwoofer
51HS12 – Hideaway™ HS12 Compact Powered 12" Subwoofer (230W RMS)
The Hideaway HS12 is a compact powered 12-inch subwoofer that delivers surprising low frequency impact in a tough, all-aluminum frame. Designed to fit under the seat, it combines an integrated amplifier with flexible input compatibility and onboard tuning controls for easy system upgrades.
Powered 12" subwoofer enclosure
230W RMS
Fits under the seat (3-1/2" height)
FIT+™ wide-range input: 0.25V–40V
Remote bass control included
Low-pass crossover + phase switch
Overview
Big Bass Impact in a Compact Powered Package
The HS12 delivers low-frequency output from a robust 12-inch powered enclosure engineered for tight installs. Its all-aluminum frame is built for durability, while the integrated amplifier and onboard controls make it easy to dial in clean, controlled bass.
- Compact powered 12" subwoofer enclosure designed to fit under the seat.
- 230 watts RMS amplifier power for strong low-frequency impact.
- Frequency response rated at 25–120 Hz.
Fit Note:
The HS12 is designed to provide more power and a bigger impact than the 10-inch or 8-inch versions, while still fitting under the seat.
The HS12 is designed to provide more power and a bigger impact than the 10-inch or 8-inch versions, while still fitting under the seat.
Integration
FIT+™ Wide-Range Inputs for Modern Vehicles
KICKER’s FIT+™ (Fail-safe Integration Technology PLUS) accepts input signals from 0.25V up to 40V (400 watts at 4Ω) and is compatible with newer vehicles using start/stop systems, helping the HS12 integrate with a wide range of factory and aftermarket systems without the added expense of a line output converter.
- Low-level input sensitivity: 250mV–10V.
- High-level input sensitivity: 1V–40V.
- Compatible with vehicles using start/stop systems.
Feature Highlights
Control, Tuning & Everyday Convenience
Rockin’ Remote
Included remote bass control lets you adjust bass level without changing radio volume—so your mix stays
right at any listening level.
Adjustable Low-Pass Crossover
Tune bass blend with a 12 dB/octave low-pass crossover adjustable from 50–120 Hz.
Subsonic High-Pass Filter
24 dB/octave high-pass filter at 25 Hz helps manage ultra-low content for controlled performance.
KickEQ™ Bass Boost
Variable boost up to +6 dB at 40 Hz for added punch when you want it.
Phase Switch
0° / 180° phase switch helps align bass output with your vehicle’s speaker system.
Auto Turn-On Options
Two auto turn-on modes: DC-offset or signal sensing for flexible installation.
Installation
Compact Dimensions for Under-Seat Fit
The low-profile enclosure is sized for tight spaces while maintaining the output advantages of a 12-inch platform.
- Box Height: 3-1/2" (8.8 cm)
- Box Depth: 17-1/8" (43.5 cm)
- Box Width: 12-1/8" (30.8 cm)
- Weight: 17.5 lb (7.92 kg)
Wiring Harness Lengths
17' power input / 8' speaker-level input / 2' ground / 2' remote turn-on
17' power input / 8' speaker-level input / 2' ground / 2' remote turn-on
Expandability
Run Two HS12s for More Output
For even more bass response, run two HS12s. If you’re using two mono amps or powered subwoofers, the KICKER DBRC Dual-Amp Bass Remote can control both from the same knob.
- Remote bass control included for single-HS12 level adjustment.
- DBRC Dual-Amp Bass Remote supports controlling two mono amps or powered subs from one knob.
Technical Specifications – 51HS12
| Model | 51HS12 |
| Subwoofer | 12" (30 cm) |
| RMS Power | 230 watts |
| Frequency Response | 25–120 Hz |
| Crossover | 12 dB/octave Lowpass 50–120 Hz; 24 dB/octave Highpass @ 25 Hz |
| Phase Switch | 0° / 180° |
| Input Sensitivity (Low Level) | 250 mV – 10 V |
| Input Sensitivity (High Level) | 1 V – 40 V |
| KickEQ Boost | Variable to +6 dB @ 40 Hz |
| Remote Bass | Included |
| Box Depth | 17-1/8" (43.5 cm) |
| Box Height | 3-1/2" (8.8 cm) |
| Box Width | 12-1/8" (30.8 cm) |
| Weight | 17.5 lb (7.92 kg) |
| Wiring Harness | 17' power input / 8' speaker-level input / 2' ground / 2' remote turn-on |
KICKER®, Hideaway™, FIT+™, and KickEQ™ are trademarks or registered trademarks of their respective owners.
Specifications and features are based on the provided manufacturer data and are subject to change without notice.