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Boom! Audio Stage II Amplifier

$499.95
Part Number: 76000277B
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Crank up the volume and let your bike speak for itself. Boom! Audio Amplifiers with built-in fixed EQs are smart, powerful, and tough.

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Showing 1-5 of 24
Reviews
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  • FEATURED REVIEW
    9/6/2022
    Boom Stage 2
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    I don't understand all of the negative reviews. I had the stage 2 Boom installed on my 2020 Road Glide, it is great I never have to turn it all the way up. No mater how fast I'm going I can hear it, it is crisp and loud. Others ride beside me to hear it everyone says it sounds great. It was installed 2 years ago by the dealer ship that I bought the bike from, I feel that is the key to my happiness. No problems. Sounds great. read more.
    Paul - NY - Motorcycle: 2020 Road Glide
  • FEATURED REVIEW
    2/22/2021
    Not Much Support or Info From HD
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    My dealer couldn't tell me if I could add the lower fairing speakers with my Boom Stage 2. They were unsure if the amp could be wired for the 4 stock plus the two additional. Theres not much information out there, and HD is horrible with their support.
    Will - Illinois
    • Each channel of an amplifier powers a speaker.U would need a 4 channel to run 4 speakers.Typically,the only exception is that there are single channel amplifier used to power subwoofers but that's not anything I've seen for a motorcycle application.
      SnaxxxUSMVMC - Tazewell Virginia
      3/13/2022
    • Each channel of an amplifier powers a speaker.U would need a 4 channel to run 4 speakers.Typically,the only exception is that there are single channel amplifier used to power subwoofers but that's not anything I've seen for a motorcycle application.
      SnaxxxUSMVMC - Tazewell Virginia
      3/13/2022
    • You need an amp for every two speakers!
      Yonke - Minnesota
      5/4/2021
  • FEATURED REVIEW
    12/8/2020
    I agree with Mati O
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    I have a 2017 RGS and put in the Stage 2 audio system, which i installed myself, and it sounds great to me, a definite improvement over the stock system. I'm not sure what people are expecting when your riding on a rural road or even worse, the interstate. Your not inside a vehicle where there's no road noise. If you know anything about car audio the more you push a system to make it louder so that you can hear it the more likely your going to push the speaker into distortion, thus blowing it. It's not like your pushing 2000 Watts with sub woofers read more.
    Joe Q - Motorcycle: Road Glide Special
  • FEATURED REVIEW
    7/26/2020
    Blown speakers at twice the price!
    I had the stage II Boom Box package installed 4 years ago. It was working, but I was getting loud pops from the speakers. The dealership recommended to “Flash” the theECM and that would fix it. It did, the unit only created haft the volume, great! Now one one of these cheap speakers is blown and I have to replace both! I’m going after market. The local stereo shop is going to replace this setup. I recommend to NOT buy the Boom Box stage II package, you can do better with none Harley equipment. read more.
    ROGUE - Santa Clarita - Motorcycle: Street Glide Special
    • Its so sad that as much money that we spend, Harley can’t get it together to prefect the craft for the speakers and amps. I legit have had two cases of blown speakers recently for my stage two audio and I will never recommend Harley audio to anyone!!!!!
      Mike - New York, New York
      10/11/2020
    • After reading everyone else’s comments I had to come in as well the amplifiers in the audio stage two boom system are despicable this is my second time replacing them at $445 per amplifier plus labor Harley can do better than this.
      Tank Tank SSR Bike club - Inglewood, CA
      10/7/2020
    • Go with Rockford Fosgate. It comes with a 400 watt amp. Works great on my street glide.
      Dave - Florida
      10/7/2020
    • This is so true!!!!....half of my club brother brought the stage 2...6 months later..Everyone switch out to new products....the not a good purchase!!
      Gpeewee - L.A.
      7/28/2020
    • You should Ck our Sinister Sound set up
      Momentous - Newport KY
      7/26/2020
  • FEATURED REVIEW
    7/13/2020
    Blown Speakers
    Featured H-D Dealership H-D Employee Sweepstakes Entry Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    My speakers were blown within 2 years.. I will never purchase Harley Brand audio again.
    Robert Solgat - Lake Worth FL - Motorcycle: Roadglide Ultra
    • I had a very similar experience- at the nearly the 2 year mark I noticed distortion in the left speaker and shortly after the speaker was done and this mainly short casual rides to work. Never again! Is the HD stamped Rockford Fosgate audio suspect?
      Regi - TX
      8/28/2023
Showing 1-5 of 34
Q&A
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  • Question:
    2/4/2025
    how do you know if an amp has failed ,my rear speakers work but not the front ones
    Deman - connecticut
    • Answer:
      Hi Deman, Unfortunately, we don't have a means of diagnosing an electrical failure. A dealer may be able to assist you in resolving the electrical issue. For assistance, please visit your local dealer. Thank you
      QuickShift
      Helpful?
  • Question:
    5/11/2024
    How many watts are the boom audio amps?
    Dave - Glenwood.
    • Answer:
      Hello, Nominal output power: 75 Watts/channel into a 2-ohm load 300-watts RMS total. Thanks!
  • Question:
    3/29/2023
    It says 2ohms, so how do I hook up 4ohm speakers and keep stereo sound?
    Bugs - Ohio
  • Question:
    1/12/2023
    WHAT EVERYONE WANTS TO KNOW IS THIS!! CAN A PERSON ADD IN JUST THE AMP AND USE THE FACTORY SPEAKERS!!! EVERYONE JUST TELL US WHAT HD SAYS, STAGE 1 AND 2, WELL WE CAN READ THAT!! WERE IS THE INFO ON JUST ADDING AN AMP TO STOCK SPEAKERS!!! NO ONE KNOWS!!!
    YESME - USA
  • Question:
    8/8/2022
    Have a 2022 FLHX. Wanting to add this amp with Stage 1 speakers in fairing. Will this work? Also, what wiring harness do I need to add to the amp?
    Bravechief - Miles City, Mt.
    • Answer:
      Bravechief This is Required to add a 2nd, 3rd or 4th set of speakers What you are looking for is Boom! Audio Stage I 2-Speaker Boom! Bagger Kit- Part Number: 76000960 Dealer Digital Technician software update is required - Dealer installation is recommended Thanks

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