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DSP 2.8X

(30 customer reviews)
In stock
  • Digital Signal Processor
  • 2 Input Channels
  • 8 Output Channels
  • Built-In Remote Out


In stock


SKU: DSP 2.8X 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.

Sequencer Feature

Allows sequential triggering of other products through the remote trigger connection (REM). Use a cable of at least 20 AWG.  The sequencer has three outputs (S1, S2, and S3) which are sequentially activated and deactivated according to the input signal from the remote input (REM IN).

The triggering interval between each output can be set from 0s to 4s. When the set time is 0s, all three outputs will be enabled and disabled at the same time after 3s of the input remote (REM IN) signal change.


  • Number of processors (DSPs): 1
  • Input Channels: 2
  • Output Channels: 8
  • Display: LCD16x2 Characters
  • Built-In Remote Out ( Sequencer )

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 Hola estos crosover vienen en sterio o mono
    Asked by Jonathan laboy valles on June 2, 2021 10:39 am
    Answered by the admin
    se puede configurar como mono o estéreo, las 8 salidas son totalmente configurables.
    It can be configured as mono or stereo, all 8 outputs are fully configurable.
  2. 0 votes
    Q Can i use this with my mono amp and 4 channel amp?
    Asked by Andre on May 25, 2021 3:34 am
    Answered by the admin Absolutely! the DSP has 8 channel outputs, you can assign any of the output to any frequency range you would like to any amplifier
  3. 0 votes
    Q can it do bandpass on 8 channels?
    Asked by Neil Ziesmer on May 25, 2021 1:02 am
    Answered by the admin Yes, You can apply for every channel a High Pass Filter and Low Pass Filter
  4. 0 votes
    Q Is the unit Bluetooth
    Asked by Terry J on May 17, 2021 10:59 pm
    Answered by the admin No, none of our units are Bluetooth.
  5. 0 votes
    Q With this DSP do I need to run an equalizer?
    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. 

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30 reviews for DSP 2.8X

  1. Jeff Smith

  2. Jay

    Amazing product

    The quality of the sound it’s a lot better you need to know a lot of sounds frequency and all that stuff if you don’t it’s a little hard to equalize it but it half a lot a few EC set ups you make it sound really really good

  3. Mark D.

    Well worth the money spent!

    I really like this product. Was looking for an eq and in the end I’m glad I got this. It’s got way more than any equalizer at this price point not to mention time delay. My only complaint is that all the channels are controlled as a whole with it’s left or right counterpart so individual speaker control is not an option so I may end up just getting two of these and splitting up my channels left and right so I can individually control each speakers delay.

  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 mine tru dession yet!! Amazed at how awsome sound lot more awesome!!!!

  9. Edgardo A.

  10. Jorge Encinas

  11. Rick P.

    Great product, company, and fast shipping. T and R Audio

  12. Marc Pope


    The new remote sequencer is a great new function for this unit.

  14. Gilroy

    Love these tweets best of the best

  15. Alexis Fonseca

  16. Anonymous

  17. Luis Vazquez

  18. Luis R.

    Great product

  19. Manuel Navarro

    It’s like the device has a Ear !!!..OF.. his…IT!!❤️❤️❤️

  20. Anonymous

  21. Cassius Foster

  22. joseph

    Can you put a video in English how set up the dsp

  23. Jann Pagan

  24. Junior R.

  25. gilbert sanchez

  26. Adrian

  27. Johnny Gonzalez

  28. JOHN C.

    I was apprehensive about this products usability. No worries. It is very easy to use! I’m using the 2.8x to process the signal to 4 tweeters and 4 mid-woofers. I can set my parameters for each speaker individually or copy parameters from one channel to another quickly. No complaints to date.

  29. Brian H.

    Handles every aspect of my audio systems tuning! Awesome product!

  30. Thomas Greenage

    Best DSP on the market !!! And I’ve had them all !

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