AUDISON Voce Ii - 12" 1100W 4 + 4 Ohm Passive Loaded Subwoofer Box (Avbx 12 D4 Ii)
Designed to deliver impactful low-frequency performance in a refined, space-conscious format, the AVBX 12 D4 II combines the full authority of a 12-inch VOCE II subwoofer with an ultra-compact sealed enclosure optimized for modern vehicle interiors.
Equipped with the AV 12 D4 II driver—featuring a dual 4-ohm voice coil—the enclosure provides superior power handling and system flexibility, allowing for high-output configurations without compromising clarity or control.
The high-density 15 mm MDF structure, reinforced with internal bracing, ensures excellent mechanical stability and damping, while the sealed design produces tight, extended bass with natural decay and definition. Engineered for true musicality, the enclosure reproduces every nuance of the low-frequency spectrum with depth and precision.
Its 2S² dual-orientation architecture allows both Down-Firing and Up-Firing installation, adapting to acoustic goals and available trunk space. The Sub Smart Plug terminal simplifies connections with a hybrid interface offering Plug-&-Play and push-connect options, ready for high-current wiring.
Every element of the AVBX 12 D4 II is developed to express the VOCE II vision: no excess, no compromise—just deep, elegant and controlled bass designed to enhance every listening moment on the road.
Technical Specs
| Nominal diameter | 300 mm |
| Impedance | 4+4 Ohm |
| Power Handling - Peak | 1100 W |
| Power Handling - Continuous | 550 W |
| Sensitivity | 84.5 dB |
| Frequency Response | 25-400 Hz |
| Chassis Material | ALUMINIUM |
| Magnet Material | HIGH DENSITY FLUX FERRITE |
| Voice Coil Material | CCAW |
| Former Material | GLASS FIBER |
| Cone Material | POLYPROPYLENE WITH MICA INJECTION |
| Surround Material | RUBBER |
| Xmax | 16.8 mm |
| Xmech | 20 mm |
| Voice Coil Winding Height | 37 mm |
| Gap Height | 7 mm |
| Driver Displacement Volume | 0.9 l |
Electric-acoustic Specs
| D | 539 cm² |
| Re | 1.8 Ohm |
| Fs | 23 Hz |
| Le | 1.8 mH |
| Vas | 63 l |
| Mms | 298 g |
| Cms | 0.15 mm/N |
| BL | 12.2 T•m |
| Qts | 0.5 |
| Qms | 6.2 |
| Reference Efficiency | 85 |
Dimensions
 |
|
| Dimension A | 607 mm |
| Dimension B | 401 mm |
| Dimension C | 175 mm |
| Dimension D | 35.2 mm |
| Dimension C1 | 133 mm |
✓ Available at our Brookvale workshop
✓ Installed by qualified auto electricians and audio technicians
✓ Over 30 years of combined car audio experience
✓ OEM-grade wiring looms, connectors and installation materials
✓ Warranty-backed workmanship
✓ Suitable for cars, 4WDs, SUVs, utes and commercial vehicles
Whether you're upgrading speakers, adding an amplifier, installing a multimedia system, fitting a dash cam, or improving vehicle security, our experienced installation team can recommend and fit the right solution for your vehicle.
Need installation pricing or advice? Contact our team on 02 993 92977or visit our Brookvale showroom.
Our Northern Beaches team can assist with:
✓ Product recommendations
✓ Vehicle compatibility checks
✓ Installation advice
✓ System upgrade planning
✓ Warranty and support enquiries
Call 02 993 92977, visit our Brookvale showroom, or use our contact form and we'll help you find the right solution for your vehicle.
Thank you for shopping at Audio Emporium. The following are the terms and conditions that constitute our Shipping Policy.
Where We Ship
We ship to all Australian states and territories, including PO Boxes. We do not currently ship outside Australia.
Shipment Processing
We aim to dispatch orders placed before [CUT-OFF TIME] AEST on a business day the same business day, where stock is on hand. Orders placed after the cut-off, on weekends or on public holidays are dispatched the next business day.
If we are experiencing a high volume of orders or if a product needs to be sourced from our distributor, dispatch may take longer. If there is a significant delay, we will contact you by email or phone.
Orders are not dispatched or delivered on weekends or public holidays.
Shipping Rates and Delivery Estimates
We offer free standard shipping on all orders within Australia to most metropolitan addresses. Bulky or heavy items — such as large subwoofers, multiple amplifiers, or full system shipments — may attract an additional freight surcharge, which will be shown at checkout before you confirm your order. Remote and regional addresses may also attract additional freight depending on the courier.
|
Destination |
Estimated delivery |
|---|---|
|
Sydney metro |
1–3 business days |
|
Other capital cities |
2–5 business days |
|
Regional Australia |
3–7 business days |
|
Remote / WA / NT |
5–10 business days |
Estimates are guidelines provided by our courier partners. Delays can occasionally occur and are outside our control.
Carriers
We dispatch via [COURIER PARTNERS]. Carrier selection depends on order size, weight and destination.
Shipment Confirmation and Order Tracking
You will receive a Shipment Confirmation email once your order has been dispatched, containing your tracking number. The tracking number will typically be active within 24 hours.
Shipping to PO Boxes and Parcel Lockers
We can ship to PO Boxes and Australia Post Parcel Lockers, subject to carrier and item size restrictions. Bulky items may not be deliverable to these addresses; if that's the case for your order, we will contact you to arrange an alternative.
Damaged in Transit
If your order arrives damaged, please contact us at [EMAIL] or call [PHONE] within 48 hours of delivery, with photos of the damaged packaging and product. We will work with the courier to file a claim and arrange replacement or refund as appropriate. Please retain all original packaging until the claim is resolved.
Lost Parcels
If your tracking shows the parcel as delivered but you haven't received it, please contact us within 7 days of the delivery date so we can investigate with the courier.
Customs, Duties and Taxes
As we ship within Australia only, no customs duties apply. GST is included in all prices displayed on the site.
Click and Collect
Sydney customers can collect online orders directly from our Northern Beaches showroom by selecting "Click and Collect" at checkout, subject to stock availability. We will email you when your order is ready for collection. Please bring photo ID and a copy of your order confirmation.
Installation Customers
If your order includes installation at our Sydney workshop, products are held at the workshop and not shipped. We will contact you to confirm your installation booking.
Contact
Shipping questions can be sent to info@audioemporium.com.au or call 02 993 92977.
- Fast Dispatch From Sydney
- Authorised Australian Dealer