Hertz SX690NEO 6×9″ Motorcycle Speakers with SoundStream ST4.1000DB Amplifier and Precision Power HD14.SBS Cut Kit For 2014-2022 Harley Davidson® Road King



Hertz SX690NEO Speakers + SoundStream ST4.1000DB Amplifier + Precision Power HD14.SBS Cut Kit
  • Marine/powersports amplifier with bluetooth
  • Glass Black Speaker Grills w/ Premium Fit-n-Finish Included
  • Motorcycle 6X9 Inch Full-Range Coaxial Speaker
  • More Features!

10 in stock


Can you hear your factory Harley speakers loud and clear at highway speeds? 

We didn’t think so…

Are you tired of blowing those factory speakers trying to be able to hear them?

Of course you are!

These issues are something we hear ALL the time at Volunteer Audio, so we have partnered with Hertz, SoundStream, and Precision Power to give you a sound experience you will be blown away with! This package will allow you to keep your factory radio when upgrading your sound system, but it will require a flash in order to get the full potential and capacity out of your amplifier and speakers so your music will be loud and clear up to 100 mph!

The Volunteer Audio Stage 2 amplifier and speaker system includes the SoundStream ST4.1000DB amplifier and 1 set of Hertz 6×9” SX690NEO speakers to drop in your front fairing and Tour Pak speaker locations. The amp comes mounted to the amp plate and is wired and ready for the addition of the new speakers. This combination is a perfect match for the environment of your Harley Davidson.

If you do not have a Technoresearch dealer near you, we do offer a loaner tool program so that you can flash the radio yourself.


Vehicle Information

• 2014-2022 Harley-Davidson Road King