Cicada DSP88 - Digital Sound Processor

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Harley Davidson Digital Sound Processor

Cicada Audio was started to develop product SPECIFICALLY for Harley-Davidsons. Even though you’ve probably never heard of Cicada Audio….our president and head engineer has been designing 12V audio for over 30 years. He has 5 design and engineering awards and 2 design patents. He’s developed 1,000’s of products in that time, many gaining “cult” status. He REALLY knows 12-volt audio. He saw that there was a real need for some new thinking and new direction in audio. Specifically “motorcycle audio” . We, at Cicada Audio, don’t do Car audio, we don’t do Marine, we don’t do “Powersport” audio. We ONLY do Harley Davidson™ audio…PERIOD!@!!

This DSP Processor has a great “form factor” as it can sit on top of the radio or under the left/right bike fairing substructure. Software Phone/Tablet APP and PC APP makes this small size package a WINNER. Easily fits into the fairing of any Harley Bagger 1998 – 2019.


  • Signal Input:  8 High-Low Level Inputs
  • Signal Output:  8 RCA Outputs
  • Output Impedance: 200 Ohms
  • Frequency Response:  20Hz – 20kHz +/- 0.5Db
  • Input Voltage:  0.02V –  8V
  • Input Impedance:  20k Ohms
  • Output Voltage: Up to 4V
  • THD+N:  <1.0%
  • Signal-to-Noise:  >100 dBA (A-weighted)
  • Digital Signal Processing (DSP):
  • Speed: 147 MIPS    Precision: 32-Bit    Accumulators: 72-bit
  • Digital to Analog (DAC):  Precision: 24-Bit
  • Dynamic Range: 108 dB
  • THD+N: -98 dB
  • Analog to Digital (ADC):  Precision: 24-Bit
  • Dynamic Range: 105 dB
  • THD+N: -98 dB
  • Operating Voltage:  9 – 16 VDC
  • Crossover Frequency:  Variable: 20 Hz to 10 kHz
  • Crossover Slope:  Selectable Slope: 6/12/18/24/36/48 dB/Octave
  • EQ Frequency Controls:  Selectable Q: 0.05 to 20.0
  • Dimensions (H x W x D): 1.26″ x 4.04″ x 5.12″ (32 mm x 102.5 mm x 130 mm)
  • PNP 14 up HD harness stock radio inside box
  • Instruction Manual 

Cicada Audio’s patented Bluetooth digital signal processor gives you the ability to do DSP tuning and signal summing via app. Using the downloadable CA DSP app on your smartphone or tablet.


It’s fitting that our FIRST DSP processor we deliver will be a ultra-compact DSP88 is element ready, being the ideal choice for Motorcycle installations. It features an incredible small size form factor.  Plus, easy setup thanks to the integrated summing/crossover/time delay/gain filters.

Our DSP88 Processor gives you 8 inputs with 8 outputs.  So you can have a just a 2 channel input and still have 8 channels out DSP to do whatever you want!!  We’ve included a “loaded” HD OEM radio harness MOLEX’s so it is easy to connect. 

The DSP88 is completely configurable from the palm of your hand. Bluetooth Control GUI (Graphical User Interface). You have complete control over the signal, both in and out. Crossover slopes from 6dB to 48dB. Adjustable Q’s from VERY narrow (Q of 20) to very broad (Q of 0.05). Channels can be grouped for easy tuning and there is input summing and the ability to link channels for easy level setting.

Software is VERY user friendly and easy to tune. Plus, we have added PreSet Audio Curves for the most popular bike years and typical gear used.  These Audio PreSets FIX the weird EQ settings that HD has put into many of their bike audio system.  Normally you would have to pay a HD motorcycle shop $100 -200 to “Flash” you bike.  NOT with Cicada Audio DSP88 Processor! 

These Presets SOLVES that issue and gives you curves that may be totally fine with you and your listening habits.  One click and DONE!!   Even if that doesn’t happen and you want to adjust it yourself, these curves get you WAY closer to setup easily and QUICKLY. 

Our software is downloadable from the Google App Store, Apple App Store and here. For your motorcycle this DSP is perfect…especially when in conjunction with Co Ax Horn speakers. to get you the most output, power and clarity possible. Everything to make it that it is easier to tune your bike. Quickly. We recommend that you download the software onto your phone and play with it, see what you think. We think you will be happier than hell to finally have an easy solution to a DIY audio system for your HD. Also look in our accessory section and see all the harnesses available to make life a WHOLE lot easier for you. Plug and play baby!!!

Fitment Notes:

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