Fi Car Audio Xv4 Series Subwoofer
£429.00
- EUR: €491
The new Xv4 Series of subwoofers is our all around daily sub.
The Xv4 Series of subwoofers is a super tough daily entry level sub. A double stack of wide high strength magnets and a standard high compression pole cap are the foundation for this motor. A multilayer foam wide surround is attached to a fiber impregnated linear kraft pulp cone which helps keep things under control in high power applications. A 3″ 4 layer aluminum voice coil yields 27mm of Xmax while keeping the motor force high. The X v4 Series will works best in ported or 6th order enclosures. Ultra tough and versatile, the X Series works in a variety of applications where excellent durability and output is required. Gloss carbon caps are standard along with the option of an extra spider for higher FS/QTS applications such as SPL burp classes.
Features
Dual 1 & 2 Ohm
Cast basket
Wrap around gasket
Linear reinforced cone
Mulit-layer wide foam surround
Push terminal
Extra heavy lead wire
FEA optimized motor
3” diameter 4 layer coil
Wide double stack high grade magnet
Dual progressive spiders
6″ Gloss Carbon dustcap
Compression cooling
Optional extra spider
Thiele-Small Parameters
| Xv4 10 | Xv4 12 | Xv4 15 | Xv4 18 | ||
|---|---|---|---|---|---|
| Coils | DUAL 1 | DUAL 2 | DUAL 1 | DUAL 2 | DUAL 1 | DUAL 2 | DUAL 1 | DUAL 2 | |
| FS | 40.98 Hz | 40.1 Hz | 39.3Hz | tba Hz | |
| RE | 0.8| 1.6 | 0.8| 1.6 | 0.8| 1.6 | 0.8| 1.6 | |
| QMS | 5.10 | 5.81 | 6.84 | tba | |
| QES | 0.33 | 0.51 | 0.6 | tba | |
| QTS | 0.31 | 0.47 | 0.55 | tba | |
| MMS | 290g | 314g | 377.4g | tba | |
| CMS | 5.1^-5 | 5.01^-5 | 4.36^-5 | N/A | |
| SD | 310cm^2 | 480cm^2 | 810cm^2 | 1210cm^2 | |
| VAS | 7.08 l | 16.1 l | 40.0 l | tba | |
| SPL | 83.4 1W/1m | 85.0 1W/1m | 87.9 1W/1m | tba | |
| BL (NA) | 16.4/23.2 | 16.4/23.2 | 16.4/23.2 | 16.4/23.2 | |
| XMAX | 27mm (One Way) | 27mm (One Way) | 27mm (One Way) | 27mm (One Way) | |
| RMS | 1500W | 1500W | 1500W | 1500W |
Technical Specifications
| Xv4 10 | Xv4 12 | Xv4 15 | Xv4 18 | ||
|---|---|---|---|---|---|
| Overall Diameter | 11.000” | 12.625” | 15.500” | 18.500” | |
| Cutout Diameter | 9.2500” | 11.0625” | 13.875” | 16.875” | |
| Mounting Depth | 6.500” | 7.125” | 8.375” | 9.500” | |
| DriverDisplacement | 0.13cuft | 0.15cuft | 0.18cuft | 0.23cuft | |
| Sealed Box | N/A | N/A | N/A | N/A | |
| Ported Box | 0.8-1.5 cuft @ 32Hz | 1.8-2.5 cuft @ 32Hz | 3-5 cuft @ 32Hz | 6-8 cuft @ 32Hz |
This is a complete list of options; not all options are available on all models.
See drop down selections for options available with each speaker model.
Cooling Stage: The new cooling stages are aluminum rings or plugs that aid in cooling and reducing the inductance of a coil (as well as linearizing it to further reduce distortion). The first stage is a machined aluminum sleeve over the pole. This has better thermal conductivity than steel alone does and reduces the effect of the coils inductance increase being an iron core inductor. The second stage includes the first pole sleeve and adds an aluminum pole cap that increases compression and cooling. The third is the first two stages along with the large visible heatsink that surrounds the outside of the coil and transfers heat to the ambient environment as well as greatly reducing the inward inductance of the coil. The overall effect increases cooling/thermal capacity as well as linearizing in vs outward inductance shift reducing distortion ad increasing bandwidth
Cooling: Self explanatory, the cooling channels are machined into the inside of the sub to help cool the coil FAR better. This option is available for subs that do not have staged cooling. While it is not a visible option, it makes a huge difference in long term thermal capacity.
High QTS: This option is for users who intend on using the subwoofer in only a sealed enclosure.
Low QTS: This option is for users who intend on using the subwoofer in only ported enclosures.
Extra Spider: This option adds an additional spider to the spider pack to help with mechanical power handling and keeping the moving assembly under control. It can have small detrimental effects on the sound quality of the sub if the sub is made too stiff (reducing excursion ability and low frequency bandwidth). But in some applications the losses are offset by the ability to use extra power. An extra spider is not a bandaid for improper subsonic filter settings on your amp/DS with respect to the box tuning (should be 2-3 Hz lower than box tuning to avoid mechanical issues when the port unloads).
Internal Lead: This option is for 8 lead per coil, increasing the current flow from coil to terminals. It is sandwiched between the spiders to keep it linear and from flopping around under extreme excursion.
Plus Coil Pack: This option adds an extra spider and the larger/higher power handling Omega/TeamV3 coil. This well bump thermal capacity from 3500W to 4500W or more depending on other options and application. The extra spider helps keep the additional moving mass and power under control while the coil has much higher current carrying capacity over the standard 4″ coils.
Speaker Terminals
We have two terminal options on selected subwoofers.
Our Standard Push terminal using 144 strand count sewn tinsel leads Or our new Hybrid+ lead system with ring terminal attachment for high power systems.
“Fi Terms & Conditions”
These are not mass produced items. Each and every order is built from the ground up. This is not by using pre made parts and bolting/gluing them together, far from. They are machined to exact tolerance for your given application. There is no mass produced magnet sitting on the shelf, your woofer is made for you, when you order. Sure others can produce drivers faster but our manufacturing goes much deeper giving greater control during manufacturing resulting in a ultra high performance regardless of the footprint.
As a result build time is typically 10-14 days. With the distance from USA to the UK this can be anywhere from 14-28 days till you receive your Fi subwoofer.
We can offer a faster service with additional freight charge to express. Typically 7 days. Please contact us about this before ordering.
Refunds, If your custom-built-item has not yet begun to be manufactured you will be charged a 5% processing fee for refunding your payment. If your speaker has begun to be manufactured, or is finished, but has not shipped, you will be charged a 30% refund fee. If the speaker has already shipped, you will be charged the 30% refund fee plus all applicable return shipping costs.
By reading these terms and conditions, you agree to wait upto the allotted 28 day period. If your order exceeds this due to manufacturing delay or part shortage you will be notified in good time.
If you have anymore questions do not hesitate in contacting us.
| Weight | 17.00 kg |
|---|
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UK Delivery
All items ordered before 14.00pm are shipped the same day unless otherwise stated at the time of ordering. Orders placed after 14.00pm on a Friday will be shipped the following Monday (excluding bank holidays, in which case it will be the next working day). If the item is out of stock for whatever reason you will be emailed within 24hrs to inform you of this. Our site manages stock inventory so if it says ‘IN STOCK’ that means goods are available for immediate dispatch.
If an item shows the logo as ‘Next Day Delivery*’ this means the item is available for immediate dispatch for a next day service. If your complete order is not over £50 then the order will be sent on a Royal Mail service. If its over then it will be sent with the most economical next day service. If you are unclear then please contact us.
- Shipping will be calculated at the checkout.
- Free shipping available for customers in the UK mainland ONLY when orders are over £50.
- We use DPD for all UK next day deliveries (aswell as for orders over £50 if the weight exceeds 2kg) and Royal Mail Recorded Post for orders under 2kg.
Free Delivery
Free delivery is available to UK mainland addresses ONLY and excludes addresses in the Scottish Highlands & Islands and Northern Ireland. Free delivery is applicable to orders over £50.00 (inc vat) ONLY. This offer doesn’t necessarily mean your goods will be sent on a courier next day service. However assuming the weight exceeds 2kg your goods are usually sent via courier (DPD Local).
Guranteed 24 Hour
- Next Day Delivery - Over £50 Inc. VAT - Any weight - Free!
- Next Day Delivery - 2-5KG - £8.00
- Next Day Delivery - 5-20KG - £9.99
- Next Day Delivery - 20-30KG - £11.99
- Next Day Delivery - 30-40KG - £15.00
- Next Day Delivery - 45KG+ - £50.00
Economy
- Royal Mail 1st Class Recorded 1-3 working days - Upto 1KG - £4.45
- Royal Mail 1st Class Recorded 1-3 working days - Upto 1-2KG - £6.90
- Royal Mail 2nd Class Recorded 2-5 working days - 0-2KG - £3.95
Saturday
- Royal Mail Special Delivery Saturday - Upto 2KG - £14.00
- Courier Saturday - Upto 5KG - £15.95
- Courier Saturday - 5-20KG - £19.95
- Courier Saturday - 20-25KG - £22.95
Back Order
European & International Delivery
Finally we advise you to check the contents of the order with the inventory sent with the goods. In the rare instance that goods are missing, please contact us within 24 hours and we will happily send out the missing goods at no extra cost to you. If goods are damaged or faulty please inform us within 3 working days of receiving your order.
Please refer to our Terms and Conditions for more information.
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