Hertz 600W Amplifier Prewired To Add An Amp To HDHU14+ Sound Stream Radio on Harley Davidson CVOs with Shark Nose Fairing, BOOM 1 System With 4-6.5″ speakers Upper Fairing and Tourpack



  • Plug-&-Play Kit For 2014-2022 Harley-Davidson Street Glides with HDHU14+ headunit
  • Prewired into SoundSteam radio harness, also includes power and ground to battery connected to amp
  • $100 core charge will be charged if this package is not shipped with a SoundStream radio. The core charge will be refunded as soon as we get the harness back. A prepaid return label will be sent with the amp for the return of the harness.
  • More Features!

10 in stock

SKU: HMP4D-SS-CVO-BC-AMP04 Categories: ,


Volunteer Audio Plug-&-Play amp with harness fits Sound Stream HDHU14+ radios for CVO Road Glides with the Factory Boom 1 system with upper fairing speakers and rear tour pack speakers. This amp is perfect when you are just replacing the factory speakers but is plenty powerful enough to allow you to add up to 2 more pairs of speakers for a total of 8 speakers if you decide you need more sound!!

Prewired for the HDHU14+ radio harness and comes with all mounting materials to make your installation as easy as possible. The gains and high pass filters are also set correctly to the correct settings needed for the factory Harley radio. Amplifier power and ground wires are already connected so all you have to do is plug into the radio harness and then run power and ground and your amplifier is working. 

We have completed all the hard work for you. This is a true plug and play set up so you just have to plug it in and you have everything working and set so they are a perfect match.

Works for 2014-2022 Harley Davidson Street or Electra Glides with Batwing Fairing.

Thanks to the ultra-compact cast-aluminium chassis (IP64 rated), the HMP4D amplifier is nature-proof, being the ideal choice motorcycle installations. It features an incredible power/size ratio and an easy setup thanks to the integrated crossover filter. The Front End section features a complete and bypassable crossover system, providing full system design flexibility with or without external processors, offering the user endless connection possibilities with any source. Inputs feature a special balanced circuitry, ensuring high rejection against electro-magnetic interferences, for noise-free results.

NATURE PROOF: Engineered and tested for the real environment of application (UV, salt-fog, vibrations, high/low temperature, thermal shock, dust).

COMPACT, CAST-ALUMINUM CHASSIS: Compact, cast-aluminum chassis (IPX6 rated), making them the ideal choice for powersports/marine/motorcycle installations.

BASS BOOST: Bass Boost adjustable via selector, for more punch from speakers.

Output Power (RMS) @ 14.4 VDC: 60 W x 4 (4 Ω), 75 W x 4 (2 Ω), 150 W x 2 (4 Ω)

Vehicle Information

• 2014–2022 Harley-Davidson Electra Glide
• 2014-2022 Harley-Davidson Street Glide

Additional information

Weight 3.77 lbs
Dimensions 12.70 × 6.25 × 3.00 in