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Fi Car Audio manufactures high-quality car audio subwoofers in Las Vegas, with steel components made directly in the USA. The current focus on neodymium subwoofers offers a wide range of sizes, numerous upgrade options, and different coil configurations. Whether you plan a powerful car audio setup with your VW Golf, Audi A4, BMW 3 Series, Mercedes C-Class, SEAT Leon, or Opel Astra: the customizable models from Fi Car Audio make car audio tuning much easier. In addition to top-class subwoofers, you will also find accessories such as amplifiers, cable sets, and connection terminals in the online shop. If needed, take advantage of the reliable installation service in Frankfurt (Oder) to have everything perfectly tuned or get advice on suitable products in advance from the Masori AI chatbot.
Fi Car Audio relies on complex cooling stages and inductance reduction for all its neodymium subwoofers. The series mainly differ in coil sizes, power handling limits, and designs of the centering spiders. In the car sound upgrade, they offer a compact design with high power density thanks to neodymium motors. For car audio enthusiasts who prefer maximum volume and deep bass, there are various options:
All models benefit from push terminals for thick speaker cables. D1 or D2 voice coils are available, allowing flexible adaptation to various amplifiers or impedance requirements. The dustcap can also be customized: in addition to a 6" or 7" carbon dustcap with a glossy finish, various colors of the Fi Car Audio logo are available, including almost all RAL color shades.
For optimal installation in the car, it is always recommended to use suitable amplifiers (e.g., depending on power requirements from 1000 W RMS up to over 5000 W RMS), stable cable cross-sections (at least 25 mm² or 50 mm²), and solid enclosure materials (e.g., MDF or multiplex). For precise sound, the enclosure volume should be tailored to the model. Equally important is sufficient airflow for the cooling stages so that the dynamic reserves of the subwoofers can be fully utilized.
| Series | Sizes (inches) | RMS power (W) | Spool Config | Spiders (Standard) | Application area |
|---|---|---|---|---|---|
| NEO 3.X | 12, 15, 18 | up to 2500 | D1 / D2 | 2–3 | Allround SQ & Level |
| NEO 3.5 | 12, 15, 18 | 1750 | D1 / D2 | 2 | Sound Quality & Daily Applications |
| NEO 3.7 | 12, 15, 18 | 2500 | D1 / D2 | 3 | Robust SPL & Everyday |
| NEO 3.9 | 12, 15, 18 | >2500 | D1 / D2 | 4 | Extreme SPL & High Pressure |
| NEO 4.X | 12, 15, 18, 21 | up to 4500 | D1 / D2 | 3–4 | Powerful & flexible concepts |
| NEO 4.7 | 12, 15, 18 | 3500 | D1 / D2 | 3 | Versatile (Bandpass/Reflex) |
| NEO 4.9 | 12, 15, 18, 21 | 3500–4500 | D1 / D2 | 4 | Port, 4th/6th Order |
| NEO 4.11 | 12, 15, 18, 21 | ≥3500 | D1 / D2 | 4 | Modern monster applications |
All models consistently use high-quality cable connections thanks to the screwed terminal blocks and push terminals. The cooling options range from a milled aluminum pole sleeve (first stage) to a curved compression cap (second stage) to massive aluminum fins (third stage). This allows inductance and thermal stress to be minimized individually.
For optimal integration into your car sound system, it is worth considering the sensitivity, frequency response, and preferred music genre. Especially in an Audi with factory-precise interior sound or a BMW that could use more deep bass punch, different enclosure types (for example, sealed boxes for precise transients or bass reflex enclosures for powerful low-end) are suitable. Plug & play solutions for VW, SEAT, or Opel also simplify the connection and reduce installation effort and space requirements.
If you want to further improve your car audio system, investing in damping materials for doors and trunk to eliminate vibrations is worthwhile. High-quality amplifiers with at least 1-ohm stable output power emphasize the level and maintain control over the subwoofer. Make sure all components have the correct power supply (e.g., AGM batteries or auxiliary batteries) as well as sufficiently thick power and ground cables.
For those seeking maximum flexibility, Fi Car Audio also offers the option to order the logo in almost any RAL color. It becomes even more personalized with various centering spiders and dustcap variants. Each upgrade option feature helps to customize the subwoofer to personal preferences – whether you're aiming for SPL competitions or prefer to enjoy deep bass in everyday life.
The path to perfect car sound leads through a well-thought-out concept, starting with the choice of the right subwoofer, suitable amplifiers, cable sets, and subsequent installation. Thanks to the wide range of Fi Car Audio models and the continuously growing portfolio in the Masori car audio online shop, you are sure to find a solution here that fits your vehicle and takes the bass in your Audi, VW, BMW, Mercedes, SEAT, or Opel to a new level. With the experienced expert support and the installation service in Frankfurt (Oder), the installation is safe and smooth.
The amplifier is nicely small. It fit well behind the Vectra glove compartment. It provides good power compared to the heat unit own amplifier.
Product ok, delivery in 12 days.
Eingebaut in A-Säule, Klanglich sehr schön, Pegelfest. Bin zufrieden.
Sehr guter Klang, Top Preis und eine schnelle Lieferung.
Hören sich gut an!!! hätte ich nicht gedacht in der Preisklasse, vor allem der Pegel hab sie mit paar Axton Hochtönern verbaut und einem Kicker sub im Kofferraum und paar Rainbow Endstufen sauberer lauter klang bin sehr zufrieden mit dem Produkt. Langzeit noch keine Erfahrung da erst zwei Wochen verbaut
Versterker was goed verpakt, En heb dit beest gelijk getest op volume en klinkt geweldig op mijn subwoofers, Het geluid vervormd niet zelfs op vol volume klinken de bas tonen zuiver, Ben vooral blij dat ik deze versterker gekocht heb. Ik geniet van elke seconde in mijn auto,Ik kon het merk niet van de versterker [gs-audio] maar het is top merk en het is met de hand gemaakt en komt uit Italy is echt goed gemaakt alleen mijn auto heeft het zwaar te verduren alles beweegt, Dus top aankoop gedaan.
muy buena calidad compre todo el conjunto superior, twitter, medios, coaxiales y agudos, una calidad espectacular ahora terminare con los suvwoofer... los rercomiendo
un pack impresionante y ademas lo he conseguido a un precio espectacular ademas el envío es muy rápido y perfectamente embalado
Compact and powerful active cooled amp there a remote knob included in the package that show the voltage and etc
Love it. It show when a fuse is blown
Good fit on A4 b6 2004
Hammer Woofer 👍 jeden Euro wert
Great Product, Great Price
Very good experience purchasing several car audio installation products through Masori: Zeus AluButyl 140dB, the Montagehebelset Keile 3-piece soft trim removal tool set, and the 10–100 mm² M8 ring terminal set.
Shipping was fast and everything arrived well packaged with no issues. Regarding the products, the AluButyl provides very good sound deadening performance, with solid material that is easy to work with, ideal for doors and areas where vibration reduction is required.
The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.
Overall, very satisfied with the purchase. High-quality materials suitable for professional-level car audio builds or well-finished personal projects, and a highly recommended store.
Very good experience purchasing several car audio installation products through Masori: Zeus AluButyl 140dB, the Montagehebelset Keile 3-piece soft trim removal tool set, and the 10–100 mm² M8 ring terminal set.
Shipping was fast and everything arrived well packaged with no issues. Regarding the products, the AluButyl provides very good sound deadening performance, with solid material that is easy to work with, ideal for doors and areas where vibration reduction is required.
The trim removal tool set is very useful for disassembling interior panels without damaging plastics or clips, especially in delicate areas, while the M8 ring terminals are of very good quality, offering solid contact and a robust finish, ideal for safe and professional power installations.
Overall, very satisfied with the purchase. High-quality materials suitable for professional-level car audio builds or well-finished personal projects, and a highly recommended store.
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