Stereo Integrity
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Unleash epic bass from compact spaces with the Stereo Integrity HST-18 subwoofer, engineered for serious sonic impact. This powerhouse boasts an impressive 1.57 inches of one-way linear travel, thanks to its high motor force and innovative bifilar copper voice coil. Experience distortion-free lows with the super stiff Carbon Fiber sandwich cone and robust cast aluminum frame. Get ready to feel every beat with this meticulously hand-built, high-performance audio marvel.
| Driver Size | 18 inch |
| Linear Excursion (One-Way) | 1.57 inches |
| Peak Excursion (Total) | 4.02 inches |
| Cone Material | Carbon Fiber Sandwich |
| Motor Structure | Triple Stacked, High Force |
| Voice Coil | Bifilar Copper |
| Spider Material | 3-Layer 10-inch Nomex |
| Frame Type | High-Clearance Cast Aluminum |
| Terminal Gauge | 4 AWG Push Terminals |
| Shorting Rings | 3 |
The Stereo Integrity HST-18 is a high-performance subwoofer driver engineered for serious audio enthusiasts and professional installations. Featuring a carbon fiber cone and copper voice coil, this 18.4-inch driver delivers 2000 watts RMS with exceptional low-frequency extension and 40mm one-way excursion capability. Designed for both sealed and ported enclosure configurations, it offers flexibility for custom integration into any system.
Quick Specifications
| Weight | 90 lbs |
| Dimensions (OD) | 18.4 inches |
| Mounting Depth | 13 inches |
| RMS Power | 2000 watts |
| Resonant Frequency (Fs) | 20.49 Hz |
| Maximum Excursion (Xmax) | 40 mm one-way (70% BL) |
| SPL | 95.28 dB |
| Cone Material | Carbon Fiber |
| Voice Coil Material | Copper |
| Terminal Type | Large 4 AWG |
| Sealed Enclosure Volume | 4.0 cubic feet |
| Ported Enclosure Volume | 6.0 cubic feet @ 20.0 Hz |
| Port Surface Area | 40 square inches |
| Motor Diameter | 10.0 inches |
Thiele-Small Parameters
| Re (DC Resistance) | 1.5 Ohms |
| Qes | 0.40 |
| Qms | 4.89 |
| Qts | 0.37 |
| Le (Voice Coil Inductance) | 1.2 mH |
| Sd (Cone Area) | 182.6 square inches |
| Vas (Acoustic Compliance) | 209.54 Liters |
| BL (Force Factor) | 16.6 Tesla Meters |
| Mms (Moving Mass) | 567.8 grams |
| Cms (Mechanical Compliance) | 106.2 µM/N |
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