Name: Fortissimo
Address: Bahnhofstr. 23 88048 Friedrichshafen Kluftern
Email: fortissimo@t-online.de
Website: https://fortissimo-shop.de/
European Manufacturer: Yes
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OnCore SM12D2/D4
Regular price
649,00€
Unit price
/
Unavailable
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OnCore SM12D2/D4 - Individually / Double 2 Ohm is backordered and will ship as soon as it is back in stock.
Free shipping from 49€
Free shipping from 49€
Shipping
✓ Free shipping from 49€ within Germany and from 99€ to the EU.
✓ Delivery times vary depending on the product and can be found on the product page, usually 1 - 3 working days for stock items, international shipping times vary, usually 6 - 10 working days.
✓ In most cases, shipping is carried out by DHL, UPS and GLS.
✓ Depending on the product and location, items can also be shipped with other providers.
✓ Tracking will be sent by email after the shipment has been processed.
Normal shipping route
✓ 1 - 40Kg = DHL, UPS and GLS
✓ 40.1 - maximum kg = forwarding agency
✓ Bulky goods = freight forwarder
✓ Customs shipments = DHL, GLS or freight forwarder
Parcel collection
✓ Collection takes place regularly from Monday to Friday, orders received by 3 p.m. are usually disposed of on the same day for goods in stock and transported directly to the parcel center.
5% discount for prepayment
5% discount for prepayment
Receive a 5% pre-payment discount. The discount is automatically deducted in the shopping cart/checkout and is valid for all products. Vouchers or discount codes may be excluded or already combined.
Wiring wizard & port computer
Wiring wizard & port computer
Use our wiring wizard for simple wiring of speakers and subwoofers! The correct connection is important for your amplifier! Low-impedance operation can damage the amplifier! The data sheet shows you which connection the respective amplifier is designed for!
Our port calculator shows you which tuning your enclosure has! The net volume is always particularly important here; calculate the pure chamber of the subwoofer beforehand to arrive at the correct result. The net volume is calculated minus all displacements and is important when designing the enclosure.
Downloads
Downloads
Manufacturer Information
OnCore SM12D2/D4
Regular price
649,00€
Unit price
/
Unavailable
The OnCore SM12D2 and SM12D4 impressively demonstrate that a shallow subwoofer doesn't have to compromise on sound quality or deep bass. Designed for vehicles with limited installation space, this 12-inch subwoofer combines an exceptionally shallow installation depth with impressive power handling and precise bass reproduction. The only difference between the models is the voice coil impedance (dual 2 ohms or dual 4 ohms), ensuring that the right version is available for virtually any amplifier setup.
Thanks to its sturdy die-cast aluminum basket, torsion-resistant paper cone, and durable rubber surround, the SM12 delivers fast, controlled bass reproduction with high precision. The sophisticatedly engineered motor unit ensures powerful drive and enables clean, low-distortion playback even at high volume levels.
With an RMS power handling capacity of 600 watts and a recommended amplifier power of up to 1,000 watts, the SM12 unleashes its full potential in both compact sealed enclosures and performance-oriented bass-reflex applications. Its slim design makes it the ideal choice for spare-tire wells, false floors, pickup truck beds, or other installation locations with limited space.
If you’re looking for a high-quality slim subwoofer that not only saves space but also impresses with powerful low-end, high dynamics, and audiophile-grade control, the OnCore SM12D2 and SM12D4 offer an uncompromising solution for modern car audio systems.
Highlights:
- Flat 12-inch High-Performance Subwoofer
- Available as either a dual 2-ohm (SM12D2) or dual 4-ohm (SM12D4) model
- 600-watt RMS power handling capacity
- High-quality die-cast aluminum basket
- Lightweight and rigid paper diaphragm
- Durable rubber seal for long-term stability
- High excursion for powerful low-frequency bass
- Ideal for compact, space-saving installations
- Suitable for sealed and bass-reflex enclosures
- Precise, dynamic, and controlled bass reproduction
- Outer diameter: 33.9 cm (effective diaphragm area SD: 617 cm²)
- Installation diameter: 28.3 cm
- Installation depth: 10.6 cm
- Total height, including grille: 15.3 cm + 1 cm for the pole core hole
- Xmax ± 15 mm voice coil overhang
- Recommended power: 300–700 W
- Tank: closed, 25–35 liters net
Technical Specifications:
| Parameters | SM12 D2 | SM12 D4 |
|---|---|---|
| Z | 9.26 ohms | 14,225 ohms |
| Revc | 0.850 ohms | 1,450 ohms |
| Levc | 25,465 mH | 30.96 mH |
| Sd | 617.00 cm² | 617.00 cm² |
| Mmd | 205.50 g | 197.70 g |
| Pmax | 700 watts | 700 watts |
| MMS | 223.125 g | 209,325 g |
| CMS | 156,424 uM/N | 150,081 uM/N |
| Vas | 84,559 L | 81,130 L |
| Fo | 26,940 | 28,395 |
| Qms | 4,132 | 3,897 |
| Qes | 0.336 | 0.385 |
| Qts | 0.311 | 0.350 |
| BL | 9,776 T-M | 11,866 T-M |
| SPLo | 88,794 dB | 88,712 dB |
| XMAX | 15 mm | 15 mm |
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