Helix Esprit E12W Shallow-mount 12" subwoofer with dual 2-ohm voice coils

Helix builds their Esprit subwoofers to fit in places that normal subs won't. Coming in at just 3-1/2" deep, the Esprit E12W 12" shallow-mount sub lets you get creative with placement while giving you impressive bass. German engineering shines through on this sub, as Helix uses technology from their high-end Precision Series to create a super-slim driver that delivers superior performance and handles plenty of power. You'll enjoy highly accurate bass reproduction in applications where space is an issue.

  • 12" shallow-mount subwoofer with dual 2-ohm voice coils
  • fiberglass coated honeycomb membrane woofer with rubber surround
  • die-cast aluminum frame
  • power range: 100-400 watts RMS (600 watts peak power)
  • frequency response: not available
  • sensitivity: 88 dB
  • top-mount depth: 3-1/2"
  • sealed box volume: 0.90 cubic feet
  • ported box volume: 1.75 cubic feet
$ 399.99 $ 259.99
Hybrid Audio Unity U69v2-S 6x9" Shallow Midbass drivers
The Unity U69v2-S is a shallow-mount 2-Ohm option to the Unity U69V2 6x9-inch driver, and with a mounting depth of just 75mm is the shallowest high-performance 6x9-inch woofer of its kind.

Quick Specs

  • 2Ω Impedance
  • 120 Watts Power Handling (Continuous w/ Crossover)
  • 90.3 dB Sensitivity (2.83V/1M)
  • 45 - 3.8k Hz Frequency Response
  • 75mm Mounting Depth
$ 449.99 $ 399.99
Hybrid Audio Unity U2
Hybrid Audio Technologies latest addition to the Unity line up is the Hybrid Audio U2 2.9" Wide Band Midrange Driver. This cost-effective solution offers the opportunity for customers to benefit from the legendary quality of Hybrid Audio midrange speakers in the sub $200 price category.

The new Hybrid Audio U2 driver is a stand-alone driver that can be added into a component set for an affordable 3-way solution or can be used in conjunction with a midbass driver allowing for a near drop-in replacement for GM and Toyota owners looking for an affordable upgrade with minimal modifications.
$ 209.99 $ 179.99
Zapco ST-850XM Mono Class D Bass Amplifier

The Studio-X line of amplifiers from Zapco was designed specifically for today’s car audio market. The Studio-X compact chassis makes it an easy fit in any car and even in motorcycle fairings.

The square, low profile chassis also means it will be easy to trim out for a great looking installation so your system will look as awesome as it sounds. And speaking of sound...This is a Zapco amplifier and sound is what it’s all about. These are Class A/B Zapco amplifiers.

The Studio-X have the same high-quality caps, op-amps, and bi-polar outputs that made the C2K and Reference series amps the industry standard for sound quality. 

Reliability? Zapco defines reliability. It’s not at all unusual to see Zapco amps moved from car to car and from generation to generation. Zapco Amps produced in the ‘90 are still being traded and bought on the internet by sound quality fans worldwide. The Studio-x will be no different


Features and Functions


  • Single channel, Class D,  Bass Amplifier

  • Compact chassis

  • Variable input gain control

  • Variable electronic crossover

  • Variable subsonic filter

  • Variable bass boost control

  • Variable center frequency for bass boost

  • Variable phase control

  • Strappable to use a pair of amps on a single voice coil

  • Dash mount remote gain control





  • Power @ 1Ω: 1 x 850 watts

  • THD @ Rated Power  < 0.2%

  • Power @ 2Ω: 1 x 600 watts

  • Power @ 4Ω: 1 x 400 watts

  • Signal to Noise Ratio > 85dB

  • THD + Noise < 0.2%

  • Efficiency > 85%

  • Frequency Response 10Hz to 200Hz ±1dB

  • Input Sensitivity .25v to 5v

  • Dimensions in mm: 160(W) x 52(H) x 301(L) Overall: 160(W) x 52(H) x 326(L)

$ 299.99

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