Hertz / Cicada Audio Subwoofer Add-On Kit for 2014-2023 Harley Davidson® Touring Motorcycles

Kits will start shipping Friday, December 12th.

Introducing the Hertz / Cicada Audio Add-On Subwoofer Kit—your new add-on bass solution built for our plug-and-play Hertz SP4.900 2-speaker and 4-speaker kits.

This ported and braced dual-10" subwoofer kit transforms your saddlebags into true bass enclosures using the included cut-in template. The 10" subs mount directly into the bag itself, delivering the deep, low-frequency punch your 6×9 speakers can’t reach.

Kit includes disconnect harness to still allow for easy removal of saddlebag.

⚠️ Important Note:

This subwoofer kit is compatible only with our existing plug-and-play Hertz SP4.900 2-speaker and 4-speaker kits when running from a single amplifier.
If your bike is equipped with a 6-speaker or 8-speaker kit, subs cannot be added to the same amp. 

This kit is also not compatible with Harley-Davidson CVO models or CVO saddlebag lids. Any saddlebag lid that was changed from a 5x7 to 6x9 or has 6x9 to 8" adapters will also not work.  

What's Included:

• (2) Hertz CS 250 S2 10" Subwoofers – Powerful 2-ohm subs delivering deep, controlled bass with 300W RMS per speaker.
• Cicada Audio 14HDRING10 – Left & Right precision mounting rings for perfect saddlebag integration.
• Cicada Audio 14HDRINGT – Left & Right trim rings for a complete, sealed fit.
• Cicada Audio HDPORT3 – Pair of Flush-mount, ABS-molded ports for optimized airflow and stronger low-end output.
• Plug-and-Play Wiring – easily ties into the SP4.900 amp.
• Hardware Pack – All stainless hardware needed for a clean, secure install which includes: (2) 8-32 x 1 inch screws, (30) 8-32 x 1.25 inch screws, (32) #8 Washers, (32) 8-32 Lock Nuts