Stereo Integrity HST-15 – Dual 1 ohm & 2 ohms 15″ Carbon Fiber Subwoofer

Stereo Integrity HST 15″ Subwoofer

Our HST series are designed for massive amounts of bass out of very small enclosures. To achieve the latter our HST drivers are equipped with very long stroke, high motor force, motors with 3 shorting rings and a bifilar copper voice coil that is capable of 40 mm of one-way linear travel.

That’s right, 80 mm of total linear travel and 102 mm of total peak excursion. Flat and linear suspension compliance is achieved by utilizing a wide soft foam surround and a three layer natural color 10″ diameter Nomex spider. Our spiders have sewn-on flat voice coil leads which completely eliminate lead tap.

High-clearance cast aluminum frame is used to support the moving parts and the large 250 mm triple stacked motor structure. Large 4 AWG push terminals allow you all the wiring access needed for hookups. Last but not least is our Carbon Fiber sandwich cone and dust cap for extremely high cone stiffness eliminating any cone distortion. When modeling the HST-15 use 0.45 ft^3 for the driver displacement.

Specifications

Quick Info

• Weight 90 lbs
• Dimensions (OD) 15.375 inches
• Dimensions (Cutout) 14.125 inches
• Mounting Depth 11.875 inches
• RMS 2000 watts

Materials

• Cone Material Carbon Fiber –
• Voice Coil Material Copper –

Thiele-Small Parameters

• Re 4.0 Ohms
• Fs 20.9 Hz
• Qes 0.38 –
• Qms 4.42 –
• Qts 0.35 –
• Le 3.1 mH
• Sd 112.85 square inches
• Vas 73.42 Liters
• BL 28.65 Tesla Meters
• Mms 593.9 grams
• Cms 97.6 µM/N
• Xmax 40 mm one-way 70% BL
• SPL 87.5 dB

Enclosure Recommendations

• Sealed Enclosure Volume 1.0 cubic feet
• Minimum Sealed Enclosure Volume 0.88 cubic feet
• Maximum Sealed Enclosure Volume 1.5 cubic feet
• Ported Enclosure Volume 1.6 cubic feet
• Minimum Ported Enclosure Volume 1.2 cubic feet
• Maximum Ported Enclosure Volume 2.0 cubic feet
• Ported Enclosure Tuning 23 Hz
• Port Surface Area 40 square inches

Additional Specifications

• Voice Coil Diameter 3 inches
• Terminal Type Large 4 AWG –
• Motor Diameter (without boot) 10.0 inches
• Motor Diameter (with boot) 10.25 inches