Fi Audio
Fi Audio X15 15" 1500W RMS Subwoofer
Descriptions
About: Fi Audio X15 15" 1500W RMS Subwoofer
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
- Gloss carbon cap
- Compression cooling
- Optional extra spider
Thiele/Small parameters:
| Coils | D1/D2 Soft | D1/D2 Stiff |
| Fs | 32.4 Hz | 39.3 Hz |
| Re | .8/1.6 | .8/1.6 |
| Qms | 5.65 | 6.84 |
| Qes | 0.49 | 0.6 |
| Qts | 0.42 | 0.55 |
| Mms | 377.4 g | 377.4 g |
| Cms | 6.38^-5 | 4.36^-5 |
| Sd | 810 cm^2 | 810 cm^2 |
| Vas | 58.59 l | 40.0 l |
| Spl | 87.9 1W/1m | 87.9 1W/1m |
| Bl | 16.4/23.2 | 16.4/23.2 |
| Xmax | 27 mm | 27 mm |
| Rms | 1500W | 1500W |
Measurements:
- Overall: 15.500"
- Cutout: 13.875"
- Mounting Depth: 8.375"
- Displacement: .18 cuft
- Sealed ft3: N/A
- Ported ft3: 3-5 cuft
Most products include a
limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use.
Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside
manufacturer specifications.
For complete warranty terms, exclusions, and claim procedures, please visit our full
Warranty Policy page.
Most products include a
limited one year manufacturer’s warranty covering defects in materials and workmanship under normal use.
Warranty coverage does not apply to improper installation, misuse, or damage caused by operation outside
manufacturer specifications.
For complete warranty terms, exclusions, and claim procedures, please visit our full
Warranty Policy page.
Fast shipping across Canada from our Toronto warehouse. Most orders ship within 1–2 business days. Shipping costs and delivery estimates are calculated at checkout. Returns are accepted on eligible items that are unused and in original packaging within our return period. For full details, please view our Shipping Policy and Returns & Exchanges Policy.
Please note that final sale, clearance, open-box, and refurbished items are not eligible for returns or refunds. These items may only be covered under their respective warranty or exchange terms where applicable. For full details regarding open-box items, please review our Open Box Policy.
Shipping & Returns
Returns Policy
- You may return most new, unopened items within 30 days of delivery for a refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect item)
- You may return most new, unopened items within 30 days of delivery for a refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect item). You should expect to receive your refund within two-three weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
- If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
What's in the box:
- We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
- When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.