REISS RS-KJ12.D4 – 30 cm Subwoofer 1500 W RMS 84.3 dB 2x4 Ohm
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Delivery information
Delivery information
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Description
Description
Reiss RS-KJ12.D4: 30 cm Dual-Voice Coil Subwoofer
Designed for high-power car audio systems, the RS-KJ12.D4 combines a 1500 W RMS power handling capacity, a 3-inch moving coil, and a 2 × 4 Ohm dual-voice coil configuration.
Highlights
- 1500 W RMS power handling and a stated maximum power of 3000 W.
- Dual 4 Ohm voice coils for pairing with a compatible amplifier.
- 3-inch moving coil and ventilated frame to help dissipate heat.
- 498 cm² effective cone area.
- Documented mounting dimensions: 283 mm cutout and 159 mm depth.
Description
The Reiss RS-KJ12.D4 is a 30 cm subwoofer designed to reproduce low frequencies in demanding car audio installations. Its 1500 W RMS power handling and stated operating range of 30 to 500 Hz make it a suitable reference for high-output music systems as well as pressure-oriented projects.
Its moving assembly includes a 3-inch coil and a cone with an effective area of 498 cm². The frame features ventilation openings designed to facilitate cooling during operation. The assembly features a 164 mm diameter magnetic system and a construction with a stated weight of 10 kg.
The RS-KJ12.D4 version, presented by Sound Auto Concept, features two 4 Ohm coils. The choice of amplifier, coil wiring, and enclosure sizing must be carefully considered to operate the speaker under suitable conditions.
- 318 mm outer diameter for mounting on the face of the enclosure.
- 159 mm mounting depth, allowing for rear clearance.
- Enclosure mounting and structure should be sized according to the weight of the speaker.
Technical specifications
| Specification | Provided value |
|---|---|
| Reference | Reiss RS-KJ12.D4 |
| Type | Subwoofer |
| Nominal diameter | 30 cm / 12 inches |
| RMS power handling | 1500 W |
| Stated maximum power | 3000 W |
| Nominal impedance | 2 × 4 Ohm |
| Frequency range | 30–500 Hz |
| Sensitivity | 84.3 dB |
| Fs resonance frequency | 38.2 Hz |
| Re resistance | 2 × 3.6 Ohm |
| Qes | 0.64 |
| Qms | 4.8 |
| Qts | 0.27, to be confirmed |
| Vas equivalent volume | 20.1 L |
| Moving coil diameter | 3 inches |
| Magnet diameter | 164 mm |
| Mms moving mass | 295, unit not specified in the source table; approximately 300 g in the presentation text |
| Cms compliance | 71.2, unit not specified in the source |
| Sd effective area | 498 cm² |
| Outer diameter | 318 mm |
| Mounting depth | 159 mm |
| Cutout diameter | 283 mm |
| Weight | 10 kg |
Why choose it
- 1500 W RMS power handling in a 30 cm format.
- Clearly identified 2 × 4 Ohm dual-voice coil configuration to prepare for pairing with the amplifier.
- 3-inch moving coil and ventilated frame for high-demand installations.
- Detailed mounting dimensions to prepare for integration.
REISS RS-KJ12.D4 – 30 cm Subwoofer 1500 W RMS 84.3 dB 2x4 Ohm
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