Wholesale Business: sales@fs-elec.com
  • Model Name: PZ-C7
  • Out Power: 4X150W
  • Frequency Range (Hz): 20Hz-20KHz
  • Material Type: Aluminum
  • Item Type: Amplifiers
  • Item Weight: 1.2kg
  • Signal To Noise Ratio: >108dB
  • Impedance: 4ohm
  • Audio Encoding: Multichannel
  • Audio Sensitivity: >90dB
  • Special Features: Sound signal processor
  • Color Name: Black
  • Item Size: 170X100X33mm
  • Certification: CE,FCC
  • EQ adjustment bands: 15-bands
  • Bluetooth: supported
  • smartphone APP: support
  • computer tuning: support
  • language: english
  • socket: special tail line socke
  • use for: car
  • channel: 4channel input and 6channel output
  • fit for: VW,Nissan,Toyota,and so on
  • warranty: 2 years

PZ-C7 New version available now!

wiring harness 4X150W Car DSP amplifier with android Software app car radio sound upgrade digital audio signal processor

Fast Fedex shipping for following area

Asia:Korea/Japan/Malaysia/Singapore/Indonesia etc.

Europe:over 90% Europe countries

United states/Canada/Mexico

You can also contact us if we can ship fast Fedex to your country.

if you can not choose Fedex from your page,please just choose aliexpress standard shipping and leave us message and you agree send by Fedex,please contact us.thank you!



search”puzu”on youtube channel you will find a lot of puzu lovers share their videos

You problebly met the following issues when you use your car audio

1.Android car radio/factory radio with bad sound quality,no power at all

2.Midwoofer speaker with bad bass sound dull and unclear

3.Install tranditional car amplifier was too difficult and it need cutting many wires and untidy,moreover it’s big size and volume

4.Tranditional amplifier with simply adjustment of EQ simple low filter and high filter with buttons.

5.The sound field is not high enough,the sound is coming out from under the feet,and it feels exhausted after a long time driving

6.Output power is not enough provided by car radio after change the speaker ,distortion

Question:What’s DSP Amplifier?PUZU DSP amplifier

Answer:DSP amplifier refers to Amplifier with built in digital signal processor chip.you can use computer software or phone app control the sound EQ
Question:What is the difference between traditional Amplifier and DSP amplifier?
Answer:Tranditional amplifier only with the function of simply adjustment of the outpower up and down,while DSP amplifier not only with output power up and down
but also you can use software better manage the amplifier,Attenuate the frequency of overlap in the car,Let the each channel speaker’s sound reach the human ear at the same time by the function of time-delay.Improve the complex listening environment in your car and let your
audio performance in the best postion.
Question:What problems can the car DSP amplifier solve?Why my car need it?
Answer:Automotive DSP amplifiers can solve many common problems in car audio,Such as sound location problems,High, midrange,bass Unclear level ,Bass dull power problem,bad sound surround.Voice turbid and so on.
Question:How much my car audio sound can be improved after installing the PUZU DSP amplifier?
Answer:After installing our DSP amplifier, your original car sound quality will be improved by 70%. If you replace the original car’s speaker, the effect will be very amazing, beyond your imagination. Your car will just like a live concert.
Question:Does my car fit for your Car DSP Amplifier?
Anwser:We have over 300 different ISO wiring harness cable.Pleae check the list below if it is including your car.Or you can ask our sales online,Thank you!
Question:Does PUZU DSP amplifer is wiring harness
Anwser:Yes,no need broken any of your car wires.Take 5 minutes you can finish installation,even if yourself can install it.
Question:Is there a security risk when installing DSP amplifier?
Answer:PUZU DSP smart power amplifier uses special car wiring harness, it will not damage any line of your original car, and our ISO wiring harness has a capacitor protection system without any safety hazards. You can use it with confidence.
Question:What about quality and warranty?
Answer:We provide 2 year warranty time.We strictly control the quality of the product all time,we will test your product before we ship it out.
Question:Does it have a built in cooling system?
Answer:Yes with cooling Aluminum,
Question:Can this DSP amp for home ?
Answer:No,it’s for car use


This product fit for Nissan VW,Honda,Toyota etc.Please tell us your car year and model before buy it,we will provide ISO cable for you!



Please kindly check if your car built in original amplifier system or not?If your car built in factory amplifiery system,we not suggest you buy this item,it’s not plug and play,if you car with factory amplier and still want to use this DSP,then you need unistall the factory amplifier and you need good skill of installation and know the wiring well.

Please kindly note it.Thank you!


We are the authorized distributor of puzu. All products are original products and provide corresponding after-sales service.Our authorized code:00316 please check it on puzu officalwebsite.


  • Please choose the suitable DSP power cable according to the car model and interfaces.

  • Stream favorite music to car speakers via Bluetooth 5.0 with excellent sound quality.

  • 15-band, 4channel input with 6-channel output; Adjustment range from 20Hz to 20kHz; High and low pass filters.

  • Support time delay settings to re-calibrates the audio signal.

  • Pair your smartphone with the DSP box and tailor the sound to your personal preference.

  • Maximum power output 4 x 150 W; Large-capacity filter capacitor; 32-bit DSP chip



This product is non-destructive audio car modification of new products,exclusive use of quad-care 32-bit DSP processing Chip,nanosecond processing speed;DRC dynamic music processing;using DSP computer tuning technology.Lossless installation,easy tuning,take up a small space.


  • 15-band EQ floating-piont high-precision tuning system.

  • high and low pass filter

  • Adjustable sound field delay to achieve spatial editing.

  • Gain control,phase control

  • Harmonic function.

  • Limiting function.

  • Built-in Bluetooth,support mobile phone to play lossless music.

  • 8 storage modes.

  • You can use Time-Delay by smart phone.



  • Port:1 car dedicated interface;6 RCA input interface;6RCA output interface

  • output power:4X150W

  • Frequency response:20Hz-20KHz

  • T.H.D <0.01%

  • Signal to noise ratio>108dB

  • Isolation:>90dB

  • Operating Voltage:DC12V

  • Dimension:170mmX100mmX33mm

We provide over 400 different kind of ISO special tail line socket for you to choose,Please find the right wire to fit for your car (Press this link to check:https://www.aliexpress.com/store/group/Car-DSP-ISO-special-tail-line-socket/826459_512955635.html?spm=2114.12010608.0.0.47187b97L5yewz

If you still not sure about which wire your car should use,please leave us message about your car year and model,it’s better you send us picture of yourcar and original car tail line socket.


You need buy the ISO cable together with this product for your car,Please visit our store and find the right DSP ISO cable for you,thanks!

1.Please go to the puzu website download the latest version software for pc and app for smartphone.it support Android system cellphone for free charge.


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