Hertz HMP4D-SS Amplifier Prewired for SoundStream HDHU14+ Headunit with Amp Plate for Shark Nose Fairing



  • Plug-&-Play Kit For 2014-2022 Harley-Davidson Road 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


HERTZ HMP4D-SS Amp + Plug-&-Play Harness for SoundStream HDHU14+ Radio

Prewired to the SoundStream radio harness to make your installation as easy as possible.

Amp kit is also 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.

Works for 2014-2022 Harley Davidson Road Glide comes mounted to amp plate.

If this amp is being purchased without a radio, there will be a $100 core charge added to the price of the amp. We will contact you regarding this charge after purchase but before shipping to you.

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

• 2014-2021 Harley-Davidson Road Glide

Additional information

Weight 3.77 lbs
Dimensions 12.70 × 6.25 × 3.00 in


Website Bullet 2

Product Type:Motorcycle Amplifier

Website Bullet 1

Brand:Volunteer Audio