Pro Audio

Tour Grade

Cab Design Spec Sheet


18-inch Tour Grade - American Muscle Made for the road, it’s the most powerful ceramic 18-inch subwoofer Eminence has to offer. Long linear excursion with extremely high power handling contribute to top notch performance in small to large vented enclosures.

Suggested Retail  $559.99
Your Price  $509.99

For contiguous USA shipments only.

  • Free Tech Support
  • 7-Year Warranty*
*Warranty policy may vary outside the USA.
This table charts the specifications for the FSW4018-8 speaker
Speaker Detail
Nominal Basket Diameter18", 457 mm
Nominal Impedance*8 Ω
Power Rating*
Program Power3200 W
Watts1600 W
Resonance39 Hz
Usable Frequency Range28 Hz - 1.5 kHz
Sensitivity*96.0 dB
Magnet Weight146 oz.
Gap Height0.591", 15 mm
Voice Coil Diameter4", 102 mm
Thiele & Small Parameters
Resonant Frequency (fs)38 Hz
DC Resistance (Re)5.3 Ω
Coil Inductance (Le)1.5m H
Mechanical Q (Qms)22.89
Electromagnetic Q (Qes)0.39
Total Q (Qts)0.39
Compliance Equivalent Volume (Vas)143.93 liters / 5.08 cu.ft.
Peak Diaphragm Displacement Volume (Vd)1716 cc
Mechanical Compliance of Suspension (Cms)0.07 mm/N
BL Product (BL)27.97 T-M
Diaphragm Mass Inc. Airload (MMs)240 grams
Efficiency Bandwidth Product (EBP)98
Maximum Linear Excursion (Xmax)14.1 mm
Surface Area of Cone (Sd)1217 cm2
Maximum Mechanical Limit (Xlim)28.4 mm
Mounting Information
Recommended Enclosure Volume
Sealed N/a
Vented 99.11-339.80 liters / 3.50-12.00 cu.ft.
Driver Volume Displaced0.236 cu.ft. / 6.67 liters
Overall Diameter18.13", 460.5 mm
Baffle Hole Diameter16.6", 421.6 mm
Front Sealing GasketYES
Rear Sealing Gasket
Mounting Holes Diameter0.28", 7.1mm
Mounting Holes B.C.D.17.32", 439.9mm
Depth9.42", 239.3 mm
Net Weight31.1 lbs, 14.11 kg
Shipping Weight33.6 lbs, 15.24 kgs
Materials of Construction
Coil ConstructionI/O Copper voice coil
Coil FormerFiberglass former
Magnet CompositionFerrite magnet
Core DetailsUndercut plate core
Basket MaterialsDie-cast Aluminum basket
Cone CompositionX5 cone pulp
Cone Edge CompositionAdvanced Polycotton surround
Dust Cap CompositionX5 dust cap pulp

Multiple units exceed published ratings evaluated under EIA 426A specification while tested in a free-air, non-temperature-controlled environment. Multiple compression drivers exceeded published ratings evaluated under EIA-426A or AES specification while mounted on Eminence’s H290, H290S, or H2EA horn in a non-temperature-controlled environment.

The average output across the usable frequency range when applying 1W/1m into the nominal impedance. i.e: 2.83V/8Ω, 4V/16Ω. Eminence response curves are measured under the following conditions: All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle | 2 ft. x 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Yamaha P3500S amplifier | 2700 cu. ft. chamber with fiberglass on all six surfaces (three with custom-made wedges). Compression drivers were tested using a 2ft x 2ft baffle built into the wall with horn front mounted.

BETA 8CX, 10CX and 12CX are coaxial speakers with tweeter sold separately. The data for these coaxial woofers was calculated with the ASD:1001 driver screwed into the woofer, but not active.

Prices, specifications and product cosmetics are subject to change without notice.