NEP Audio
18 Inch Professional Midbass / Pro Subwoofer
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We will try to keep these in stock, but many times these items are being drop shipped to our facility for inspection. We will then send the product on to you. This could delay the time it takes to receive the items by 5 days to 2 weeks. We have decided it was best to make sure it checks out OK before having it go out to you. Contact us for ETAs before or after purchase, because we always have them coming in.
- High BL motor for impressive control and massive output
- Split winding 4 ohm 4" voice coil handles 1,500 watts RMS
- Aluminum demodulating ring reduces distortion
- Under-spider venting for maximum power handling
- Capable of producing big sound when loaded in small boxes
18" Professional Subwoofer 4 Ohm
This 18" professional woofer features 3,000 watts of continuous program power capacity, thanks to its 4" split winding copper voice coil. A frequency response of 30 to 1,000 Hz and 57 mm of peak-to-peak excursion (before damage) combine to make this one of the top woofers in its class. The 18TBW100-4's double silicone spider with optimized compliance keeps the driver controlled, while the ventilated voice coil gap reduces power compression. Low distortion is achieved by using an aluminum demodulating ring in the driver's magnetic circuit. Great performance is realized in vented boxes as small as 7 cu. ft.
Product Specifications |
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|---|---|
| Nominal Diameter | 18" |
| Bolt Circle Diameter | 17.4 |
| Power Handling (RMS) | 1500 Watts |
| Power Handling (MAX) | 3000 Watts |
| Impedance | 4Ω |
| Frequency Response | 33 to 1,000Hz |
| Sensitivity | 96dB 2.83V/1m |
| Voice Coil Diameter | 4" |
Thiele-Small Parameters |
|
|---|---|
| Resonant Frequency (Fs) | 33Hz |
| DC Resistance (Re) | 3.2Ω |
| Voice Coil Inductance (Le) | 1.64mH |
| Mechanical Q (Qms) | 6.23 |
| Electromagnetic Q (Qes) | 0.34 |
| Total Q (Qts) | 0.32 |
| Compliance Equivalent Volume (Vas) | 6.41ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.088mm/N |
| BL Product (BL) | 22.8T·m |
| Diaphragm Mass Inc. Airload (Mms) | 268.2g |
| Maximum Linear Excursion (Xmax) | 12mm |
| Surface Area of Cone (Sd) | 1210cm² |
Materials of Construction |
|
|---|---|
| Cone Material | Coated Paper |
| Surround Material | Cloth |
| Voice Coil Wire Material | Copper |
| Voice Coil Former | Fiberglass |
| Basket / Frame Material | Cast Aluminum |
| Magnet Material | Ferrite |
Mounting Information |
|
|---|---|
| Overall Outside Diameter | 18" |
| Baffle Cutout Diameter | 16.6" |
| Depth | 9.5" |
| # Mounting Holes | 8 |
Recommended Enclosure Volume |
|
|---|---|
| Sealed Volume | 2.5ft³ |
| Sealed F3 | 84.6Hz |
| Vented Volume | 6ft³ |
| Vented F3 | 35.5Hz |
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Shipping
We offer discounted shipping rates which can be calculated during checkout
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Returns
You may return an item in new condition with no questions asked for 13 days after confirmed delivery.