Stereo Integrity HST-18 | 18 Inch Subwoofer

Stereo Integrity HST-18 18 Inch High-Excursion Subwoofer | Sold Individually 40 mm One-Way Linear Travel 102 mm Peak Excursion Triple Stacked 250 mm Motor Carbon Fiber Cone Dual 1 or Dual 2 Ohm Massive Bass From a Small Enclosure The HST series is Stereo Integrity's answer to a common problem: getting very large amounts of bass out of a very small enclosure. The HST-18 does it with long stroke and high motor force. Its bifilar copper voice coil is capable of 40 mm of one-way linear travel, which works out to 80 mm of total linear travel and 102 mm of total peak excursion. Stereo Integrity hand-builds its HST subwoofers in North Carolina. Engineering Highlights Triple Stacked Motor A large 250 mm triple stacked motor structure with three shorting rings supplies the force needed to control a long-throw 18 inch cone. Bifilar Copper Voice Coil The bifilar copper coil is capable of 40 mm of one-way linear travel, and the shorting rings in the motor work to hold inductance down across that stroke. Linear Suspension A wide soft foam surround and a three layer, 10 inch natural Nomex spider keep compliance flat and linear. Sewn-on flat voice coil leads eliminate lead tap. Carbon Fiber Sandwich Cone A carbon fiber sandwich cone and dust cap provide very high cone stiffness, carried by a high-clearance cast aluminum frame with large 4 AWG push terminals. Choosing Your Version The HST-18 is offered in dual 1 ohm and dual 2 ohm. Dual 1 ohm coils wire to 0.5 ohm in parallel or 2 ohms in series, and dual 2 ohm coils wire to 1 ohm in parallel or 4 ohms in series. Planning note: Stereo Integrity's product page does not list a Thiele-Small parameter set, power rating, or mounting dimensions for the HST-18. Call us before you plan an enclosure and we will help you work through the details. Ordering Each HST-18 is hand-built to order and ships separately. Stereo Integrity lists a 90 pound shipping weight, so call 931-563-5151 before you order for current lead time and delivery options. Authorized Stereo Integrity Dealer Audio Intensity is an authorized Stereo Integrity dealer, and we build enclosures around their drivers. Call 931-563-5151 to plan an HST-18 build.