PZ-C31S is the newest version of PZ-C31
(PZ-C31 stoped manufacturing since 25th Dec.2024,We still provide after sales support till 25th Dec.2026)
ADVANCED DIGITAL SOUND PROCESSOR BUILT IN AMPLIFIER
8CH with seperate 31-band EQ floating-piont high-precision tuning system.
Each channel with High and low pass filter controls
Adjustable sound field delay to achieve spatial editing.
Gain control,phase control
Harmonic function/Limiting function.
Built-in Bluetooth5.0 play lossless music(Named DSP Audio**).
8 storage modes.
Specifications
4ch high level&4RCA input interface;8RCA output interface
Support input Mixer high level/low level/Bluetooth/Optical/USB
MAX output power:6X150W /6X50W RMS output power
Frequency response:20Hz-20KHz
T.H.D <0.01%
Signal to noise ratio>108dB
Isolation:>90dB
Operating Voltage:DC12V
Dimension:177mmX138mmX46mm
- This product is non-destructive audio car modification of new products,exclusive use of 6-core 32-bit DSP processing Chip,nanosecond processing speed; DRC dynamic music processing; using DSP computer tuning technology. Possess a large-capacity filter capacitor. Lossless installation,easy tuning,take up a small space.
- Maximum power output 6×150 W; Large-capacity filter capacitor; 4CH high level/low level input and 6CH high level output 6X150W/8CH RCA output
- Customized sound tuning with PC software,android app,IOS app (publish after march 2025,search PZ-C31S in apple store). Support remote controller(optional)/Wire harness for over 300 different cars. Support Bluetooth play. USB play lossless music. Pair your smartphone with the DSP box and tailor the sound to your personal preference.
- Frequency response:20Hz-20KHz. Crossover with Variable Frequency (6/12/18/24/36/48 dB oct). Adjustable sound field delay to achieve spatial editing.
- All eight channels with 31 Band floating piont tuning/seperate time. Built-in 31-segment adjustable EQ—31 band EQ floating-point high precision tuning system Visually adjust the Frequency, Gain, and Q value of each channel.
- noise gate control
- Built in ADEP (Advanced Diagnostics Error Protection),
- APP inside music play (New function,you can play your phone music inside sound tuning app directly)
- Augmented Bass control,you can control subwoofer volume without use wired remote.Please make sure subwoofer channel set properly.



Features















Thank you very much.
The cost performance was excellent and the store's service was kind, which made me happy.
It works well and harness number 3 is correct.
Thank you for ending the consultation.
Looks good and professional and the sound from my radio is so noticeable much better even if i haven't turned it in yet.
very good
Of the negative points on the case, all the signatures in the upper legs are upside down. Although on
Photo from the seller all designations. The output inputs, etc., are entered correctly. This is of course a minus. let's see how it works. PZ-C7 has been working for over a year without any surprises, let's see how it will work.
Fast delivery and friendly response
Before use, the sound quality is still not known
About the device itself. I can't say anything yet. This is my first experience of buying such a device. I watched a lot of different reviews and reread many forums. Decided to take this particular model to begin with. In the near future I will install the MP4on the Mercedes. I will try to fill in the video for YouTube. I will also add feedback here. The bundle will be as follows. Phone, cap, amplifier-processor, standard radio, standard acoustics. High resolution FLAC files, in the phone player Hiby music. I will leave my impressions later. I may be supplemented in the process, perhaps for the replacement of acoustics, noise, for the density of sound. 5 +++++++++++++++