SQL-15 15″

$299.99 $269.00

This is a pre-order with pre-order pricing. We received notification on February 28, 2020 that the SQL shipment has been loaded into their container and are in transit headed to our location. Normal transit time is 30-45 days. Stay tuned to our Facebook page for the most recent updates.

Please select voice-coil configuration, either Dual 2 ohm or Dual 4 ohm voice coils.

Product is available in the lower 48 contiguous United States.  For shipping outside the lower 48 contiguous United States please call us or email us for a shipping quote.

SKU: RM-15-1-1-1 Category:


Big bass out of a small box. The SQL subwoofers are specifically designed to work in small sealed or small ported boxes and provide deep, clean, loud bass. Subwoofers either sound good but are too dainty to be turned up, or sound “ok” but can get pretty loud. Our SQL subwoofer accomplishes the perfect mix of sounding excellent with music while possessing the capability to keep up with the most demanding closet bass head in all of us. We accomplish this by using a larger and longer voice coil with a tight gap powerful motor. Mass has been balanced precisely to provide bass from down below human hearing up to your subwoofers crossover point. Controlling the moving assembly are two large spiders and a tall rubber surround for linear suspension movement and lower distortion. Lower distortion continues with stellar 28.4 mm one-way linear excursion from the voice coil and motor topology. 28.4 millimeters each direction for distortion-free bass. Solid power handling of 1000 watts RMS and a small sealed enclosure requirement of 2.0 ft^3. Vented is 3.75 ft^3 tuned to 29 Hz.

Additional information

Weight 27 lbs
Dimensions 18 × 18 × 12 in
Voice-coil configuration

Dual 2 ohm, Dual 4 ohm

  • 15″ subwoofer
  • 28.4 mm Xmax (one-way linear)
  • 40 mm Xmech (one-way)
  • 9.25″ diameter Nomex spider
  • Sewn on leads
  • Large speaker terminals
  • Cast basket
  • 2.75″ diameter copper voice coil
  • 1000 watts RMS power handling
  • Rubber surround
  • Dual Integrated Faraday rings for low inductance
  • Available in Dual 2 Ohm and Dual 4 Ohm

Enclosure Information:

  • Sealed = 2.0 ft^3
  • Ported = 3.75 ft^3 tuned to 29 Hz
  • Cutout: 13.8″
  • Outer Diameter: 15.4″
  • Mounting depth: 8.0″
  • Mounting flange to top of surround: 1.25″
  • Displacement: 0.16 ft^3
SQL-15 Dual 2 Ohm
Re 3.5 ohms
Fs 23.8 Hz
Qes 0.45
Qms 5.83
Qts 0.42
Le 2.7 mH
Sd 839.8 cm^2
Vas 115.0 L
Bl 20.42
Mms 388 g
Cms 115
Sensitivity (2.83v/1m) 91.0 db
Xmax 28.4 mm