The new Delta series is the largest and most powerful sub in our complete line of subwoofers. Sharing all the features of the Omega series like a 12.5” diameter split ferrite magnet design as the foundation allowing cooling air to flow through our massive 1/4” thick inductance ring. This inductance ring and the thermal mass it provides aids in reducing non-linearities in the coil as well as becomes the foundation for our new annular cooling system for the coil. The 4” voice coil and upper motor geometry allow extreme Xmax and linear throw. 4,5, or 6 spider suspension are offered as options(TS Params are based off of standard 5 spider). While the Omega is designed for ported and 6th order applications the Delta works well in 4th orders or smaller sub systems.
The new Hybrid+ lead system is standard with the stitched extreme lead and new attachment system. This allows for you to use any size speaker wire you would like for the ultimate in power transfer. The cones are available with epoxy impregnated option to the Kraft pulp/ fiber matrix and are stronger than ever before…. Offering power handling and features never before found on our subwoofers, it truly is the last word in brutality from Fi.
*****A note on power handling and use. The Delta series is not the sub for everyone or every application. The power rating of 4500W is a base rating that in testing were simply could not hurt it in any way. This is not to say that this is its “rating”. With the use of the Delta, power is 100% application dependent and in practical use can be much higher. The enlcosure, tuning, thermal/mechanical compression of the system will dictate how much more (if any) power can be used. The Delta series can be used in smaller single sub applications, lower pressure systems, or regular trunk setups while the Omega should not be. *****
Coils DUAL 1 | DUAL 2
FS 37.0 Hz | 36.4 Hz
RE 0.7|1.4 ohms
QMS 7.11 | 7.02
QES 0.25 | 0.36
QTS 0.25 | 0.35
MMS 434g | 436g
CMS 0.0 | 0.440
VAS 39.1 l 40.4 l
SPL 90.8dB | 89.1dB
BL 19.53 | 27.6 Tm
XMAX 34mm (One Way)
RMS * Many Watts
Sealed box: NO | NO
Ported box: 3-5cuft | 3-5cuft
Sub OD: 15.625” | 15.625”
Cut ID: 14.125” | 14.125”
Mounting depth: 11.50” | 11.50”
Displacement: 0.25cuft | 0.25cuft
Dual 1 and Dual 2 Ohm
Extra heavy aluminum basket
Wrap around gasket
Kraft pulp fiber reinforced cone
Dual layer wide foam surround
144 tinsel count leads
Hybrid+ lead system
FEA optimized motor
Split ferrite magnet design
4” diameter 4 layer coil
Single stack magnets
Progressive 10″ spiders
Unique motor profile
Machined, hand built / finished at Fi
*****A note on power handling and use. The Omega series is not the sub for everyone or every application. The power rating of 4500W is a base rating that in testing were simply could not hurt it in any way. This is not to say that this is its “rating”. With the use of the Omega, power is 100% application dependent and in practical use can be much higher. The enclosure, tuning, thermal/mechanical compression of the system will dictate how much more (if any) power can be used. This is not the sub for a single trunk setup because its the biggest thing we sell. Please save your money and purchase a Team or SP4 for better results. This is for big power, big number, music and SPL applications where you are chasing 163+ dB applications. If in doubt, ask… please do not buy it if you do not know you need it. We are trying to save you money and get you the right product*****
Custom Options Explained
“Fi Terms & Conditions”
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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.
Shipping will be calculated at the checkout.
Free shipping available for customers in the UK mainland ONLY when orders are over £50.
We use Interlink Express 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.
Make sure you supply us with a mobile number when you order, then we can give you full tracking information & updates on your order throughout the process.
Clicking on the above image, will also allow you to track your order online. If you have any questions or queries, contact our helpful office team on firstname.lastname@example.org
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 (Interlink Express).
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
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
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
Orders MUST be made before 2pm Friday
Items that are listed with ‘Back order’ usually means there is around a 5-10 working day delay for the item to be back in stock. Some items are listed in this way as they are a low volume product and are considered special order with our suppliers.
European & International Delivery
Blade ICE ships internationally to many countries in Europe. Based on the weight of your order shipping will be calculated at the checkout.
Blade ICE reserves the right to charge the full shipping fee applicable to resend if the item is returned to us as the customer was unable to take delivery of the parcel for any reason. Courier returned items will be added back into our stock and your account credited with the order total, minus the fee the courier charges us to deliver the item back to us. You will have to re-place the order to have the item reshipped. If a customer inputs any incorrect details on their order, which causes the parcel to be delivered incorrectly, we will not hold any responsibility for this parcel.
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.