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The SLAPS M series differs from the regular SLAPS by having a pre fitted tuning bolt centered on the device. This provide easy addition of weight for tuning the SLAPS.  The M series boasts impressive performance with extended excursion capability. It also features a very rational price due to the annular stamped steel chassis.  

Earthquake SLAPS are Tunable Passive Radiators that provide additional bass, without additional amplifier power or enclosure volume. Designed to perfectly complement all good quality long-throw woofers on the market. SLAPS add up to +6dB of bass compared to regular sealed and ported enclosures. The benefit of them being user tunable is they can be integrated into virtually any sub/ cabinet combination.

SLAPS is a patented type of passive device that significantly increases subwoofer efficiency and ability for ultra low frequency reproduction. SLAPS is short for  Symmetrically Loaded Audio Passive System. As the name indicates,  SLAPS is built symmetrically which distinguishes it from traditional passive devices. SLAPS integrates identical components in its suspension design, this results in identical stoke regardless of forwards or backwards motion. The high efficiency and performance is a result of the pneumatic coupling between SLAPS and an active driver. 

Features

  • Coupled with almost all woofers, SLAPS increases output without added amplifier power or enclosure volume
  • Suitable for high output needs where space is limited
  • User-tunable adjustments can be set to match a range of vehicle requirements and musical preferences.

Specifications

  • Model nr.: SLAPS-M12-V2
  • Installs just like a subwoofer
  • Slim-mount design is only 3-inches deep
  • No increase over existing sealed subwoofer enclosure sizes
  • Easy tuning for quick adjustments

Dimensions:

  • Overall Diameter: 314.2 mm
  • Cutout Diameter: 289 mm
  • Mounting Depth: 53.3 mm
  • Hex Nut Size: US 5/16 (M8)
  • Mass ID: 8 mm
  • Max Mass OD: 74 mm

TS Parameters*:

  • F(s)= 16.7 Hz
  • Vas = 115.7 in Liters
  • Qms: 7.00
  • Cms: 0.0003675 Meter/Newton
  • Mms: 0.2469 Kilogram
  • Sd: 483 sq.cm.
  • Xmax: 4 in. / 10.2cm

*measured with only the bolts installed and without the mass