Infinity Kappa Harley 6x9 for Aftermarket 6x9 Speaker Lids 900X-NC SKU: 900X-NC



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Perfect Entry Point to Big Sound Systems without the Waste

We couldn’t believe it until we saw it for ourselves. Never before have we seen a speaker that can both drop into place of a factory Harley speaker and thrive off of just deck power and then also blow away other big gnarly power hungry speakers when given dedicated amplifier power. It just defies nature! It all comes down to superior engineering. Infinity has more experience designing speakers, bigger resources, and deeper pockets than all of the other speaker companies combind. So when Infinity put their sights on designing the best performing and most Harley suited speakers out there, they called American Hard Bag and we worked with them for over a year to produce the best speaker designs possible for Harley applications.

Speaker Specific DSP Files Available

We offer free sound processor setting files for these specific speakers as well as optimized amplifier gain settings that are also very specific to the Infinity 900X speakers as a part of the standard American Hard Bag customer service. Think about it, there is no good reason for you to waste your time spitting in the wind with high level tuning when we have already done hundreds of hours doing this work for you. 

Dsp Files Are Available For

  • Rockford Fosgate DSR1 
  • Velocity 8 
  • Musway M4+ 
  • Musway M6
  • Helix MFour

We do not make files for DSP brands and models that we do not sell. However, we do also offer tabular data for Equalizer, Time delay, and Crossovers.  

Product Description

If You Already Have 6x9 Speaker Lids, Get the Infinity 900X-NC Kit and Save the Added Cost of the Mounting Kit That You Don’t Need

The Infinity Kappa 900X is the very best sounding 6x9 right out of the box, HANDS DOWN! These speakers just shine without the need for complex tuning. This is the perfect set of speakers if you are looking for… 

  • Waterproof (IPX5) 
  • Big upgrade for systems without an amplifier. 
  • Even bigger upgrade with an amplifier. Can handle big power and dominate in large scale systems 
  • Works great along with bag woofers, sharing air space. Even subs! 
  • Loudest 6x9 without a horn and even beats the pants off of many horn loaded speakers 
  • Smooth sound of a dome tweeter


  • All years
  • Aftermarket 6x9 Lids


1 year


Water Proof

Very High Level Performance

Road Glide

Street Glide

  • High-power, low profile neodymium magnet structures
  • 100% waterproof (IPX5)
  • True component tweeters with external crossovers
  • Convertible design
  • Composite baskets
  • 2-way in-line crossover


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

A 3 Ohm impedance gives the 900X speakers a distinct power advantage over other speakers without having to upgrade your amplifier, bridge it, or run a dangerously low 2 Ohm impedance. 

What's Included

  • 6x9 Speakers
  • Component Tweeters
  • External Passive Crossovers

What's Not Included

  • Speaker Lid Cut-In Kit/Grills
  • Rear Speaker Harness