KTE-12G.2 - Subwoofer ALPINE - Free user manual and instructions
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| Product Type | Subwoofer |
| Brand | Alpine |
| Model | KTE-12G.2 |
| Size | 12 inches |
| Impedance | 4 ohms |
| RMS Power Handling | 400 watts |
| Peak Power Handling | 800 watts |
| Frequency Response | 20 - 200 Hz |
| Sensitivity | 88 dB (1W/1m) |
| Mounting Depth | 5.5 inches |
| Cut-out Diameter | 11.0 inches |
| Recommended Enclosure (Sealed) | 0.8 - 1.2 ft³ |
| Recommended Enclosure (Ported) | 1.5 - 2.0 ft³ |
| Voice Coil | Dual 4-ohm |
| Magnet Type | Ferrite |
| Terminal Type | Push-button spring terminals |
| Net Weight | 12.5 lbs |
| Dimensions (Diameter x Depth) | 12.5 x 6.0 inches |
| Cone Material | Pressed paper with mineral filler |
| Surround Material | Rubber |
| Recommended Amplifier Power | 200 - 600 watts RMS per channel at 4 ohms |
| Cleaning | Wipe with a dry cloth; do not use liquids or solvents |
| Safety | Ensure proper enclosure volume and avoid overpowering; listen for distortion |
| Spare Parts / Repairability | Contact Alpine service center for cone, voice coil, or electronics replacement |
Frequently Asked Questions - KTE-12G.2 ALPINE
What is the recommended enclosure volume for the Alpine KTE-12G.2 subwoofer?
For a sealed enclosure, use 0.8 to 1.2 cubic feet. For a ported enclosure, use 1.5 to 2.0 cubic feet. The actual volume may vary based on the vehicle and listening preference.
What amplifier power should I use with this subwoofer?
The KTE-12G.2 handles up to 400 watts RMS and 800 watts peak. An amplifier delivering 200-600 watts RMS at 4 ohms is recommended for optimal performance.
Can I wire this subwoofer to a 2-ohm load?
Yes, if you have a dual 4-ohm voice coil model, you can wire the coils in parallel to present a 2-ohm load to the amplifier. Ensure your amplifier is stable at 2 ohms.
What is the mounting depth of the KTE-12G.2?
The mounting depth is approximately 5.5 inches. Measure your enclosure clearance to ensure proper installation.
How do I clean and maintain this subwoofer?
Clean the cone and surround with a soft, dry cloth. Do not use any liquids, solvents, or abrasive cleaners. Keep the subwoofer away from moisture and extreme temperatures.
What is the frequency range of the KTE-12G.2?
The subwoofer reproduces frequencies from 20 Hz to 200 Hz, ideal for deep bass in a car audio system.
Is the Alpine KTE-12G.2 suitable for home theater use?
While designed primarily for automotive use, it can be used in home theaters with a suitable enclosure and amplifier. Ensure the enclosure is built to the recommended specifications.
Can I install this subwoofer in a free-air (infinite baffle) setup?
The KTE-12G.2 is not optimized for free-air use. It performs best in a sealed or ported enclosure to control cone movement and achieve accurate bass.
Where can I find replacement parts for this subwoofer?
Contact Alpine customer support or an authorized Alpine service center for replacement cones, voice coils, or grilles. Use only genuine Alpine parts to maintain performance.
What are the cut-out dimensions for the KTE-12G.2?
The required cut-out diameter is 11.0 inches. Ensure you cut precisely to avoid gaps or binding.
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