Description
Included in this kit
This bundle includes an Audison AVBX-12-D4-II AVBX 12 D4 II - 300mm 4+4ohm 1100W Sealed Subwoofer Box, a Kicker 46CK8 K-Series Complete 8-AWG Amplifier Connection Kit W/ 2-Channel RCA Interconnects, and a Kicker 47KEYLOC Key Series Smart Powered Line-Out Converter.
1x Audison AVBX-12-D4-II AVBX 12 D4 II - 300mm 4+4ohm 1100W Sealed Subwoofer Box (AVBX-12-D4-II)
Overview
The AVBX 12 D4 II is a compact 12-inch loaded subwoofer enclosure engineered to deliver powerful, controlled low-frequency performance in space-conscious installations. Designed within the VOCE II platform, it combines high output capability with refined bass accuracy for both OEM upgrades and custom systems.
Built around the AV 12 D4 II driver, the system features a dual 4-ohm configuration for flexible integration and consistent performance under demanding conditions.
Feature Highlights
- Ultra-shallow sealed enclosure for compact installations
- Dual 4-ohm voice coil configuration for wiring flexibility
- 550W RMS / 1100W peak power handling
- 2S² dual-orientation design (down-firing or up-firing)
- Sub Smart Plug (SSP) hybrid connection system
Construction & Engineering
The enclosure is constructed from high-density 15 mm MDF and reinforced with internal bracing to ensure structural rigidity and effective damping. This design minimizes unwanted resonance and coloration, resulting in tight, accurate bass reproduction with strong transient response.
The integrated subwoofer utilizes a polypropylene cone with mica injection, rubber surround, and CCAW voice coil on a glass fiber former. A high-density ferrite magnet and optimized motor structure support controlled excursion and reliable performance.
Installation & Integration
The 2S² dual-orientation architecture allows flexible installation in either down-firing or up-firing configurations, adapting to different vehicle layouts and acoustic goals. Its compact footprint makes it ideal for space-limited applications.
The Sub Smart Plug (SSP) terminal enables quick and secure connections through a combination of plug-and-play and traditional push terminals, supporting high-current wiring with ease.
Specifications
| Nominal Diameter | 300 mm |
| Impedance | 4 + 4 Ohm |
| Power Handling (RMS) | 550 W |
| Power Handling (Peak) | 1100 W |
| Sensitivity | 84.5 dB |
| Frequency Response | 25 – 400 Hz |
| Xmax | 16.8 mm |
| Xmech | 20 mm |
| Voice Coil Material | CCAW |
| Former Material | Glass Fiber |
| Cone Material | Polypropylene with Mica Injection |
| Surround Material | Rubber |
| Magnet Material | High Density Flux Ferrite |
| Chassis Material | Aluminium |
| Driver Displacement Volume | 0.9 L |
| Fs | 23 Hz |
| Qts | 0.5 |
| Vas | 63 L |
| Re | 1.8 Ohm |
| Le | 1.8 mH |
| Mms | 298 g |
| Cms | 0.15 mm/N |
| BL | 12.2 T·m |
| Reference Efficiency | 85 |
1x Kicker 46CK8 K-Series Complete 8-AWG Amplifier Connection Kit W/ 2-Channel RCA Interconnects (46CK8)
KICKER® complete amp kits feature top-quality Hyper-Flex power, ground and turn-on cables. K Series speaker wire and interconnects are also included, as is a heavy-duty AFS fuse holder and fusing. Insulated crimp connectors and zip ties come in the kit as well.
8AWG 2-Channel Amp Kit
This Complete Eight Gauge Amp Kit comes complete with Full Spec wire, hardware, fusing and signal cable.
Hooking up an amp is easy when get everything you need in one place. The best hardware, signal and power cable comes in one convenient package.
1x Kicker 47KEYLOC Key Series Smart Powered Line-Out Converter (47KEYLOC)
Kicker 47KEYLOC Key Series Smart Powered Line-Out Converter
This revolutionary line output converter automatically detects the frequency range of your speaker leads, and a whole lot more!
FIND THE FREQUENCY - News flash: factory audio systems don’t always deliver a full-range signal on every speaker wire. That makes it tough to hook up an aftermarket amp and get the sound you wanted – until now.
Attach the speaker wire to the KEYLOC, play a free test tone (below) and read the LEDs. You’ll instantly know if Hi, Mid or Lo is coming from a particular pair of speaker wires. No oscilloscope or RTA needed!
IT’S FIT - Using KICKER’s FIT 2+™ technology, the KEYLOC has the most versatile input sensitivity in the car-audio aftermarket. Ranging from 125 mV – 10V (Lo) or 1V to 40V (Hi), the KEYLOC is prepared to work with nearly every vehicle on the road today.
OPTIONAL ALL-PASS - The KEYLOC allows you to keep or defeat factory time delay, or the all-pass filter built into many modern vehicles. By defeating this filter, the KEYLOC instantly counteracts the either of these factory effects, allowing you to tune for one-seat audio or maintain the factory imaging.