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OMEGA Series – OMEGA 15

$1,399.00 $1,049.00

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Handmade in USAEstimated despatch time of 10-15 business days

The 2017 OMEGA is the last word in brutality from Fi.

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Starting with our very successful first sub in the Fi line, the Alpha series, we are now fulfilling the lineup with our new “Omega” series.

The new Omega series is the largest and most powerful sub in our complete line of subwoofers. Featuring a 12.5” diameter split ferrite magnet design as the foundation it allows cooling air to flow through our mass 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 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).

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 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 enlcosure, 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*****

  • 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

  • Double stack magnets

  • progressive 10″ spiders

  • Unique motor profile

  • Machined, hand built / finished at Fi
Weight 123 lbs
Dimensions 20 x 20 x 20 in
RMS

4500

Ohm

Dual 1, Dual 2

Size

15″

Thiele-Small Parameters

  OMEGA 15 OMEGA 18
Coils DUAL 1 | DUAL 2 DUAL 1 | DUAL 2
FS 37.0 Hz 37.5 Hz
RE 0.7|1.4 ohms 0.7|1.4 ohms
QMS 7.11 7.66
QES 0.25 0.29
QTS 0.25 0.28
MMS 434g 498g
CMS 0.0 0.0
SD 810cm^2 1210cm^2
VAS 39.1 l 76.2 l
SPL 90.8dB 93.3dB
BL 23.6 | 33.4 Tm 23.6 | 33.4 Tm
XMAX 34mm (One Way) 34mm (One Way)
RMS * Many Watts * Many Watts

Technical Specifications

  OMEGA 15 OMEGA 18
Overall Diameter 15.625” 18.500”
Cutout Diameter 14.125” 16.750”
Mounting Depth 11.5” 12.75”
Driver Displacement 0.25cuft 0.26cuft
Sealed Box N/A N/A
Ported Box 3-5 cuft 6-8 cuft

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

P Chamfer: This is a chamfer on the end of the pole, it helps to bring the air down around inside of the motor and helps cool the coil better. It also helps relieve the pressure underneath the dustcap. We recommend at the bare minimum to get this option if you choose this series of woofers.

Hyper Pole: This is an extended version of the standard P Chamfer. It has 1.250” more pole and chamfer resulting in an increased compression ratio for better cooling.

Cooling: Self explanatory, the cooling channels are machined into the inside of the sub to help cool the coil FAR better. But there are some things that you sacrifice. There is less metal inside of the motor so it is a little weaker. If you are looking for a fart/burp only scenario for SPL we suggest that you do NOT get this option. Stick with only the P chamfer. Now if you are looking for a daily sub to beat on and you have less then 2000 watts then this is the option for you. 2000+ watts you need to look into the BTL series.

Flatwind: The flatwire coil option simply helps the power handling of the sub. The coil has more surface area to dissipate heat and will take more power then the regular round wire coil that comes in the ‘stock’ version of the sub. This option will also make the sub tend to be more prone to ‘peaking’. If you are looking to do an SPL install we highly recommend that you use choose the flatwound coil option. In testing it is louder then the regular roundwire coil and takes the thermal abuse much better.

BP: “BP” option which was a machined aluminum compression plug to the pole which helps channel all of the air under the dustcap around the coil for better cooling. To aid with this increased airflow we also added 6 axial cooling channels in the top plate. Along with increased thermal capacity comes the addition of an extra spider and a changed spider pack. All of these features increase power handling from 200-500 Watts depending on the application.

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.

I Heat Ring: This option is a machined aluminum ring in the gap that lowers the inductance of the voice coil which allows it to play up a little higher in the frequency range and have better overall transient response. Please note that you can NOT select low Qts and the I Heat Ring options together.

Internal Lead: This option is for 8 lead coit per coil, increasing the current flow from coil to terminals.

Inner Heat Sink: Its a machined aluminum ring in the gap that lowers the voice coils inductance (allowing it to play up higher and have a little better overall transient response). It also reduces the volume inside the magnet gap of the motor increasing air speed with the cooling as well as allowing the coil to kick off heat to a more receptive thermal mass rather than magnets.

Daily or SPL: Simply put, if you plan on listening to any type of music you MUST choose the daily option. If it is strictly for a fart/burp scenario then choose the SPL option. The reason we have these options is the gap tolerances between the two are different. The gap in the SPL woofer is much tighter and FAR less forgiving in comparison to the Daily option. The Daily option simply gives the coil more wiggle room inside of the gap to deal with the non-linearity tendancys that you can get into when you are using a sub in a daily driving scenario. Typically SPL applications deal with 1 note and it does not change, therefore we can make the gap much tighter and get all of the motor strength that we can out of it.

Spider Spacer: Adding this feature mirrors the spider layers and in turn reduces rock ratio helping keep the voice in line at extreme excursion.

Universal: This option gives you the choice to later chance the impedance of your voice coils. You can change from dual 2s to dual 1s and vice versa by reconing them. If you do not choose this option your motor(s) will be optimized per the coil resistance that you have chosen. (Dual 2s will forever be a dual 2 motor, Dual 1 will forever be a Dual 1 motor).

Dust Cap Type: Choose between a standard or a carbon fibre dust cap. See the examples below…

Standard

fi-cap-standard

Carbon

fedex_ground

Subwoofers & Recones are dispatched via FedEx Ground. Small goods such as sticker packs, various apparel items are shipped via USPS. Upon dispatch of your goods, order status will be updated from “test/pack” to “shipped” which is accompanied with tracking details.

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