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    Boom! Audio Stage I Speaker Expansion Kit

    Part Number 76000748





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    Add more Boom!™ to your bike. This kit permits the addition of a third or fourth pair of speakers to your Boom!™ Audio-equipped Touring bike. Choose a combination of Boom!™ Audio Fairing Lower Speakers and/or Rear Speaker Pods (sold separately) to build a sound system custom-designed to your audio demands. System also provides speaker fade capabilities between fairing and non-fairing mounted speakers for highway riding, when it’s needed most.

    • Marine-grade, Class D amplifier
    • Saddlebag Mounted
    • Nominal output power: 75 Watts/channel into a 2-ohm load; 300-watts RMS total
    • Boom! Audio EQs directs a different signal to each pair of speakers based on the bike model, speaker location, and speed
    • Boom! Audio amplifiers were designed to withstand the harsh on-the-road environment and were put through rigorous on and off-bike testing
    • Dealer Digital Technician software update is required - Dealer installation is recommended
    • Stop by a participating dealer to interact with a unique audio display that lets you simulate how your bike will sound with Boom! Audio upgrades


    • Water Resistant

    • Dealer Install Recommended

    • Warranty

      1 year limited warranty – Go to for full details
    • Sold in Unit

    • In The Box

      Amplifier, all mounting hardware and wiring harness
    • Class



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    Fits ’17-later Touring models equipped with a Boom!™ Box audio system. Required to add a 3rd or 4th set of Boom!™ Audio Stage l speakers. '18-later FLHTKSE models requires separate purchase of Harness P/N 69201930. Dealer Digital Technician software update is required. Dealer installation is recommended. Not compatible with models equipped with Boom!™ Audio Stage II components.

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    More Info

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      The use of the Boom!™ Audio Amplifier turns off the radio's internal amplifier


      Q & A

      2018 CVO Limited Boom Upgrade

      Can you install the saddlebag speakers and amp so when you detach the TP you have a CVO SG. When you re-connect the TP will all speakers work? Do you have to re-flash the radio when you remove or re-connect the TP?
      Asked by: DTMFJeff
      Hi DTMF Jeff, Due to the technicality of this question, I suggest seeing an authorized H-D dealer in your area. Good Luck!
      Answered by: RowdyGrl79
      Date published: 2017-10-02
      • y_2018, m_2, d_26, h_20CST
      • bvseo_bulk, prod_bvqa, vn_bulk_2.0.7
      • cp_1, bvpage1
      • co_hasquestionsanswers, tq_1
      • loc_en_US, sid_PA-08-76000748, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
      • clientName_harleydavidson

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