Musway/Infinity Kappa 4 Channel Full System for Road Glide or Street Glide SKU: MUSWAY-INF-4

Regular price $2,012.85 $1,799.95


Free System Design Call Now 1(888)311-0016

Look No Farther

If you are looking for a guaranteed high performance result and no fuss installation, this is the system you want. 

Infinity Kappa Speakers

Our absolute favorite speaker system for bolt in and smile results. This speaker system is the nicest sounding setup right out of the box that we have ever encountered. The speakers can be added to a Harley without complex tuning. You simply get an instant jump in output and sound quality by installing them. 

Musway M4+ amplifier/DSP

Though these speakers already sound spectacular, processors play a critical role in the performance of all truly high end Harley speaker systems. The optional tune that comes with this speaker/amplifier combination is where the magic happens. Instead of burdening our customers with having to figure out complex tuning on their own, we offer a pre-tune with each system that has dozens of hours of professional wizardry already in them. The Musway M4+ amplifier is ideally matched for power to the Kappa Perfect speakers with the ability to easily drive the speakers to 100% of their mechanical abilities. 

The Software

The Musway PC software interface is just beautiful and rock solid. We have auditioned many DSP interfaces over the years and we even consult for may other DSP and amplifier companies, helping them develop better DSP interfaces. So we know what we are doing when it comes to DSP software. The Musway software is a pleasure to work with and one of the very best that we have ever seen. Plus we offer live remote PC assistance if you ever need any help.


  • 2014+ Street Glide, Electra Glide 
  • 2015+ Road Glide 
  • 2014+ Ultra Limited - This kit adds lid speakers and does not include replacement speakers or connections for the tour pack speakers. We do offer those additional parts and options. Call for more information 1(888)311-0016


  • Musway 1 Year
  • Infinity 3 Year


Water Proof

Very High Level Performance

Road Glide

Street Glide


Musway M4+ Amplifer/DSP

  • 4 x 100/135 Watts RMS @ 4/2  Ω or
  • 2 x 270 Watts RMS @ 4  Ω bridged
  • 6 x High Level Input
  • 2 x AUX/RCA Input, 1 x Optical Input/Stereo
  • 4 x Loudspeaker Output amplified
  • 4 x Pre-Amplifier Output/RCA (configurable via DSP)
  • Dimensions: 220 x 44 x 150 mm, 8.66" x 1.73" x 5.9"

Infinity Kappa Perfect 600X Speakers

  • Power handling: 75Wrms, 225W peak
  • Sensitivity (@ 2.83V): 93dB
  • Frequency Response: 60Hz - 20kHz
  • Impedance: 3.0 ohms

Infinity Kappa Perfect 900X Speakers

  • Power handling: 75Wrms, 225W peak
  • Sensitivity (@ 2.83V): 93dB
  • Frequency Response: 60Hz - 20kHz
  • Impedance: 3.0 ohms

What's Included

Video: Optional "Make Life Easy Package"

  • 1 Musway M4+ Amplifier/DSP
  • 1 Pair Infinity Kappa Perfect 6.5" Speakers
  • 1 Pair Infinity Kappa Perfect 6x9 Speakers
  • 1 Pair Street Glide/Electra Glide Steel Replacement Speaker Grills
  • 1 Pair Road Glide Steel Replacement Speaker Grills
  • 1 USB Drive with Software, Test Tracks, Installation Articles, Installation Videos

What's Not Included

Must add the following options before adding to cart

  • Optional Flash Tool
  • Optional Plug & Play Wire Harnesses
  • Optional Lid Cut-In Kit
  • Optional DSP Tune