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DSP 2.8X

(9 customer reviews)
Out of stock
  • Signal Processor
  • 2 Input Channels
  • 8 Output Channels


Out of stock


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SKU: DSP 2.8X - Only Categories: ,


Bringing innovation and technology to the Automotive Sound market, PRV Audio launches the DSP2.8X Digital Signal Processor, capable of making various adjustments, from filters, graphic and parametric equalization, alignment, phase inversion, limiter, audio generator, among others. Enhancing Your Audio System!

Through an LCD display and intuitive interface, it allows real-time audio adjustments.The DSP 2.8X features 2 audio inputs (A and B) and 8 independent outputs, and allows you to choose the audio source (A, B or A + B) for each output. It has an integrated equalization system, with 15-band graphic equalizer, manual tuning or through 12 presets (Flat, Loudness, Bass Boost, Mid Bass, Treble Boost, Powerful, Electronic, Rock, Hip Hop, Pop, Vocal and Pancadão).

For professional equalization adjustments, it has 1 INPUT Parametric Equalizer and 1 OUTPUT Parametric Equalizer with gain control, specific frequency setting and equalizer bandwidth, allowing fine adjustments and detailed equalization control.
The Crossover function allows you to precisely define the cut frequencies, attenuation rates and topology of the LowPass and HighPass filters with Butterworth and Linkwitz-Riley filters (12/18/24/36/48 dB / 8ª).

To aid in the protection of amplifiers and loudspeakers, the DSP 2.8X features a Limiter with Dynamic Attack-Release system that dynamically controls the Attack and Release parameters in real time, providing security and sound fidelity.

In the audio treatment, it also has Alignment capabilities through High Accuracy Delay, Phase Inversion, Independent Gain by Output and Master Level. For accurate measurements and adjustments, the DSP 2.8X features an integrated Audio Generator with tone generation and frequency sweep and Pink Noise. Configuration Copy functions between output channels.
It also has the functions of Management, Save and Load Settings in memory, Security Password that blocks the editing of the parameters, Marquee / Text Display and Language Selection.


  • Number of processors (DSPs): 1
  • Input Channels: 2
  • Output Channels: 8
  • Display: LCD16x2 Characters

WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov

Technical Details


Number of processors (DSPs) 1
Input Channels 2
Output Channels 8
Output Gain Yes
Master Level 0 ~ 100%
Graphic Equalizer 15 Band
Graphic Equalizer Presets 12
Parametric Equalizer Input 1
Parametric Equalizer Output 8 / 1 per Channel
Routing A,B / A+B
Crossover Butterworth (dB/8ª) 12/18/24/36/48
Crossover Linkwitz-Riley (dB/8ª) 12/18/24/36/48
Limiter Yes
Automatic Attack/Release Yes
Delay 0 to 8 ms (275 cm)
Frequency Generator 10Hz – 22kHz, Level -60 at 0dB
Frequency Scan 10Hz – 22kHz / Level -60 at 0dB / Control of speed
Display LCD16x2 Characters
Screen Saver Text
Security Password Yes
Frequency Response(+/-3dB) 10Hz @ 22.5kHz @ -1dB
Latency 1.08ms
Signal to Noise >90dB
THD <0,01%
Channel Separation > 80 dB
Maximum Input Voltage 5,6 Vpp (+8,2 dBu)
Maximum Output Voltage 5,6 Vpp (+8,2 dBu)
Supply Voltage 10V to 15V DC
Dimensions (HxWxL) 1.45″ x 7.87″ x 3.97″
Weight 1 Lbs

Customer questions & answers

  1. 0 votes
    Q With this DSP do I need to run an equalizer? answer now
    Asked by Ralph Miranda on April 16, 2020 4:47 am

    The DSP 2.8X has a built in equalizer with presets. You can use an external equalizer if you wish. You can use up to 2 with this DSP. 

  2. 0 votes
    Q I forgot my password answer now
    Asked by Jose on April 11, 2020 8:46 pm

    If you forgot the security password you will have to factory reset the unit. You can do this by holding the first 3 output buttons with the unit OFF and then turn it on while holding the buttons. This will give you a prompt to reset the DSP. 

  3. 1 vote
    Q How can I connect 3 amps with 3 equalizer using this DSP? answer now
    Asked by Tony on March 29, 2020 10:44 pm

    With this DSP you will only be able to connect 2 equalizers as it only has 2 inputs. If you would like 3 or 4 equalizers you would need 2 of the DSP 2.8x. 

  4. 0 votes
    Q Dsp and crossover or just dsp? answer now
    Asked by Calvin Ford on November 14, 2019 7:01 am

    The DSP 2.8X has a crossover built in along with many other features. With this you do not need to use another crossover. 

  5. 0 votes
    Q What is the DSP used for? answer now
    Asked by Giri on November 1, 2019 12:58 pm

    On the product page for the PRV DSP 2.8X there is a tab called Features. Inside this tab explains the functions of the DSP. 

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9 reviews for DSP 2.8X

  1. Jeff Smith

  2. Jay

  3. Mark D.

  4. Modesto

    I upgraded my stock 6.5 with PRV 6.5 – 6MR500CF-NDY-4, for the batwing fairing, added PRV 6×9’s – 69MR500-PHP-4 in my saddlebags, and PRV Super Tweeters – TW450Ti-Nd-4, in front mirror holes. Also running 2 amps, one for the 6.5’s and one for the 6×9’s. The PRV DSP 2.8X is AWESOME!!!! I’m running both amps off the DSP, and the DSP is a much needed tool if adding one amplifier or many amplifiers.

  5. Modesto

    The DSP is AWESOME, and Tim the tech is extraordinarily helpful.

  6. Larry Choate

    Purchased the dsp about a month ago, haven’t quite got the grasp on all the functions, but have noticed the difference in sound quality with minor adjustments with it. It performs as expected and more. Worth the money and definitely made my system better…

  7. D’Angelo Komora

  8. jerrick Abang

    Just hooked it up.got mine tru amazon.best dession yet!! Amazed at how awsome sound lot more awesome!!!!

  9. Edgardo A.

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