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Pair of shallow 8-inch subwoofers with black inverted cones and low-profile frames

Earthquake Sound

Earthquake Sound SWS-8Xi 8" 2 Ohm Shallow Subwoofer (pair)

SKU CH-GB35-6Z58F

A pair of shallow-mount 8-inch subwoofers rated at 150 W RMS and 86.7 dB sensitivity for tight-fit bass upgrades

  • Subwoofer size8 in (20.3 cm)
  • Voice coilSingle
  • Peak wattage300 W
  • RMS power rating150 W
  • Audio sensitivity86.7 dB
  • Rated impedance2 Ohm
  • Shallow 2-1/8" mount fits tight spaces
  • 150W RMS power delivers solid bass output
  • Inverted cone design maximises excursion in slim enclosures
  • 7 dB sensitivity produces loud sound with less power
  • NOMEX/ROMEX spider and aluminium bobbin handle high heat

Shallow 8" Subwoofer Pair

The Earthquake Sound SWS-8Xi is a pair of 8-inch shallow-mount subwoofers rated at 150 watts RMS and 300 watts peak power. They are built for vehicle owners who want deeper bass without sacrificing cabin space. The 2-ohm impedance suits amplifiers designed for low-impedance loads. Sensitivity sits at 86.7 dB for efficient output.

Mounting Depth And Amp Pairing

Each driver needs only 2-1/8 inches of mounting depth, so it fits behind factory panels or under seats where standard woofers cannot go. The inverted cone design allows maximum excursion within that slim profile. You will need an amplifier stable at 2 ohms per channel or bridged to deliver the rated power cleanly.

Patented Cone And Spider Assembly

Three U.S. patents cover the inverted cone, the NOMEX/ROMEX spider and the aluminium bobbin with heat-sink attachment. Together they control cone movement at high output and dissipate heat from the voice coil. The result is reliable performance in tight enclosures without the mechanical noise that plagues lesser shallow drivers.

How it compares

Measured against everything we stock in Car Subwoofers & Enclosures, at today’s prices. Recalculated every night.

Price $206.99
Typical for this category: the median of 268 items is $185.49.

Specifications

Product
Brand nameEarthquake Sound
Product lineShallow Woofer System Series
Product typeSubwoofers
Product colorBlack
Audio & video
RMS power rating150 W
Audio sensitivity86.7 dB
Rated impedance2 Ohm
Power
Peak wattage300 W
Size & build
Subwoofer size8 in (20.3 cm)
Mounting depth2-1/8 in
More details
Voice coilSingle

Questions about this item

Will the 150 W RMS rating hold up during long listening sessions without thermal compression?

The 150 W RMS power handling and high-temperature voice coil with heat-sink attachment are designed to manage sustained output without overheating.

How much heat and noise does the subwoofer generate when driven continuously?

The aluminum bobbin and heat-sink attachment help dissipate heat, while the NOMEX/ROMEX spider assembly maintains mechanical stability during extended use.

What amplifier impedance and wiring are required to run this pair of subwoofers?

Each subwoofer presents a 2 Ohm load; your amplifier must be stable at the resulting impedance based on how you wire the pair.

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