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DSP 2.8X

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  • Digital Signal Processor
  • 2 Input Channels
  • 8 Output Channels
  • Built-In Remote Out


In stock


SKU: DSP 2.8X Category:



DSP 2.8X – Digital Audio Processor, Crossover & Equalizer – 2 Inputs & 8 Outputs

Bringing innovation and technology to the Automotive Sound market, PRV Audio launches the DSP2.8X Digital Signal Processor, capable of making various Real-time signal adjustments, from crossover 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 )


PRV AUDIO Car Audio DSP 2.8X Digital Crossover and Equalizer 8 Channel Digital Signal Audio Processor DSP with Sequencer Remote Relay

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

WARNING: Cancer and Reproductive Harm – our Return Policy.

Customer Reviews

Based on 60 reviews
Eric Castillo
Omg my system is wow

This is my first dsp ever and wow the way you can tune each speaker is bad you can see I got a very big system. Prv dsp freaking awesome

Rodelio Polintan
PRV is the Best !!!

This is the Perfect Digital Sound Processor I’ve got for my personal sound system. Thanks !

Best DSP!

Ok, so I’ve used audio control for decades…no more! Prv dominates the processor game hands down! For the price you can’t beat it, it’s the easiest, most accurate piece I’ve used. It also cleaned up my mess of rca’s in a compact, mount anywhere package. Sorry audio control, Prv is the next generation for audio!!

Poppa T
Great Product Need Follow-Up Advanced YT Video

Of course the gains and crossover settings are pretty straightforward but I would like to see another video on PRV’s YouTube channel about the more advanced settings. The limiter, parametric EQ, EQ, etc. other than that I like how I don’t have to use all those rcas to run my system.

Wesley McCombs
Amazing DSP for the Price…

This DSP is very basic, intuitive and user friendly. The Settup and tuning of this DSP can be done in 30 mins maybe even less depending on how complex your routing and Settup is. I do have something strange going on with my routing where one of my channels doesn’t wana go into stereo routing and keeps running mono. I’m not sure why but could be something I’m doing wrong but I have spent many hrs using this DSP and I know I set it up correctly for stereo playback. I still have not used it in my vehicle just in my basement on a smaller system in my basement hooked up to amps that I do driver testing on. Not only does it have all the tuning features you need to make your settup sound and play to its full potential but it has backup memory to keep all your settings saved in case your battery died or the DSP was unhooked. I was disappointed in one feature it’s seems to need a protection feature to prevent turn-on pop when connecting the DSP to power for the first time. This DSP for the money seems to be of great value abd reliability and I don’t have to worry about running a $2.5k DSP I need apps a laptop or remote to tune it and set it up and that doesn’t have a remote output turn on delay to control your other amplifiers. It’s so expensive it needs to be included in my home policy and having to replace that would be very unfortunate. Just buy this thing you will be pleased I’m an SQL guy and haven’t even hooked this thing up with my radio to be able to use my eq so I can only imagine. Just buy this DSP


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