About the Kicker 51KST2004

Product highlights:
- 3/4" silk dome tweeters
- hardware for flush-, surface pod-, and angle-mounting
- handles up to 65 watts RMS (195 watts peak power)
- frequency range: 4,500-21,000 Hz
- in-line crossovers (4,500 Hz at 12 dB/octave)
- features neodymium magnets
- sensitivity: 92 dB
- top-mount depth: 9/16"
- warranty: 2 years
- MFR # 51KST2004
- Item # 20651KST20
What's in the box:
Kicker 51KST2004 owner's manual
If you need assistance accessing this owner's manual, please give us a call.- Two 3/4" Tweeters (each with 6" Wire attached)
- Two 5' Lengths of speaker wire with in-line crossovers (quick-slides on one end and tinned bare wire on the other)
- 2 Flush mount trim rings
- 2 Short mounting nuts
- 2 Long mounting nuts
- 2 Front angle rings
- 2 Back angle rings
- 2 Surface mount pods
- 2 Pod nuts (installed)
- 2 Flat washers (installed)
- Tweeter removal tool
- Owner's manual (English/ Spanish/ German/ French)
More details on the Kicker 51KST2004

Features & specs
General | ||
---|---|---|
Speaker Size | 3/4 | |
Driver Design | 1-way | |
Woofer Design | --- | |
Woofer Material | --- | |
Woofer Surround | --- | |
Midrange Design | --- | |
Midrange Material | --- | |
Tweeter Design | 3/4" Dome | |
Tweeter Material | Silk | |
Super Tweeter Design | --- | |
Super Tweeter Material | --- | |
Impedance (Ohms) | 4 | |
Weather-resistant | No | |
Grilles Included | Black steel mesh | |
Parts Warranty | 2 Years | |
Labor Warranty | 2 Years | |
Specifications | ||
Sensitivity (1W at 1 meter) | 92 | |
Sensitivity at 2.83 volts | N/A | |
Frequency Response | 4500 - 21k Hz | |
Maximum RMS Wattage | 65 | |
Peak Power Handling (Watts) | 195 | |
Top-mount Depth (Inches) | 0 9/16 | |
Bottom-mount Depth (Inches) | N/A | |
Cutout Diameter or Length (inches) | 1 5/16 | |
Mounting Height (Inches) | 0.321 | |
Frame Width | 1.616 | |
Frame Length | 1.616 |
Product Research
Features
Mounting Options: The tweeters come with brackets to allow multiple mounting configurations; flush-mount, angle-mount, and surface-mount. The surface mount pods are mounted to a threaded, hollow shaft and have a ball-and-socket joint, so they can be turned in any direction, and angled to approximately 30˚.
Dimensions:
Flush | Angle | Surface | |
---|---|---|---|
Mounting Height | 0.321" | 0.525" | 2" |
Mounting Depth | 0.554" | 0.713" | 0.75" |
Frame Diameter | 1.616" | 1.675" | 1.53" x 1.9" |
Cutout Diameter | 1.3" | 1.450" | 0.475" |
Crossovers: The passive crossovers are in-line with the included speaker wire. The slope is 12dB per octave and the crossover point is 4,500 Hz. The crossover measures approximately ⅝" at its thickest point.
The Kicker 51KST2004 replaces these items:
- handles up to 65 watts RMS (195 watts peak power)
- in-line crossovers (4,500 Hz at 12 dB/octave)
- features neodymium magnets
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Customer Q&A
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It said I'd have to do modifications, but the flush washer and nut worked fine to hold them in. I used hot glue to make sure it won't go anywhere, though. Comes with crossover lines, which is nice.
Jesse from BURKESVILLE, KY