Grommes-Precision SLS-HW
Speaker Line Lightning Suppressor for High Wattage Systems

OUR PART #  SLS-HW


With the Grommes~Precision SLS, you can rest easy in knowing that the majority of the reason electronic equipment gets damaged from lightning striking the speaker line can now be eliminated inexpensively.

Most lightning damage to electronic equipment is caused through induction. With induction, lightning does not strike the speaker line or electronic equipment directly, rather, it propels, or induces, large voltages of electrical energy into the system. Equipment connected to long speaker lines or input lines are especially susceptible to damage from induction.

Therefore, Grommes~Precision designed the SLS to prevent induced speaker line lightning surges from harming the electronic equipment connected to it. Although not much can withstand the rare direct strike, the SLS can help protect electronic equipment from the much more likely induced strike. Once the current flowing through the SLS exceeds its switching current, the SLS clamps the transient voltage simulating a short circuit condition. Once the current flowing through the SLS is less than the devices holding current, the SLS will reset, protecting your electronic equipment. Simply locate the SLS within the speaker line directly. SLS and the SLS-HW are Triple Protected: Primary & Secondary, Series, and Shunt.

Grommes~Precision SLS-HW Features:

  • Induced lightning strike protection
  • Rugged construction
  • Triple Protection: primary & secondary, series,and shunt
  • Utilizes Advanced Protection Technology—Think of the SLS-HW like atransient voltage suppressor diode with a gate feature

Grommes~Precision SLS-HW Specifications:

  • Max. Audio Voltage: 200 V RMS Balanced
  • Clamping Voltage: Approx. 350V
  • Dimensions (WxHxD): 6 x 1.625 x 8.5"
  • Weight: 3 lbs

Grommes-Precision SLS-HW
Speaker Line Lightning Suppressor for High Wattage Systems

OUR PART #  SLS-HW

Product Information:

With the Grommes~Precision SLS, you can rest easy in knowing that the majority of the reason electronic equipment gets damaged from lightning striking the speaker line can now be eliminated inexpensively.

Most lightning damage to electronic equipment is caused through induction. With induction, lightning does not strike the speaker line or electronic equipment directly, rather, it propels, or induces, large voltages of electrical energy into the system. Equipment connected to long speaker lines or input lines are especially susceptible to damage from induction.

Therefore, Grommes~Precision designed the SLS to prevent induced speaker line lightning surges from harming the electronic equipment connected to it. Although not much can withstand the rare direct strike, the SLS can help protect electronic equipment from the much more likely induced strike. Once the current flowing through the SLS exceeds its switching current, the SLS clamps the transient voltage simulating a short circuit condition. Once the current flowing through the SLS is less than the devices holding current, the SLS will reset, protecting your electronic equipment. Simply locate the SLS within the speaker line directly. SLS and the SLS-HW are Triple Protected: Primary & Secondary, Series, and Shunt.

Grommes~Precision SLS-HW Features:

  • Induced lightning strike protection
  • Rugged construction
  • Triple Protection: primary & secondary, series,and shunt
  • Utilizes Advanced Protection Technology—Think of the SLS-HW like atransient voltage suppressor diode with a gate feature

Grommes~Precision SLS-HW Specifications:

  • Max. Audio Voltage: 200 V RMS Balanced
  • Clamping Voltage: Approx. 350V
  • Dimensions (WxHxD): 6 x 1.625 x 8.5"
  • Weight: 3 lbs
Add to Cart

We're sorry, only of this item available



Call a Sales Pro at for more information

Serving Contractors, Dealers, and Installers Since 1977

Contact: 1-800-828-0509 / Hours: Mon - Fri 7:00AM - 7:00PM