PUZU P31 User manual

P31&P12 COMPUTER SOUND TUNING TECHNIQUE
WWW.PUZUAUDIO.COM
HUIZHOU SHANGSHUI TECHNOLOGY CO.,LTD
CARDSPAMPLIFIER

What’s Car DSP Amplifier?
Car DSP Amplifier means Car digital siginal processor with bulit in Amplifier,It combined tranditional
Amplifier functions and Traditional Digital signal processor functions.DSP Amplifier is an audio
console which can turning audio sound,listening space compesation,correction,adjustmentat
equipment,the same time,it provide over 4X120Watts ouput power,it can fit for most of peoples’
requirement,While a signal processor can do many things to affect the sound the user hears, it
cannot do everything because the signal processor does not produce the sound directly. That task
falls to the speakers. Even the most capable signal processor can only deliver the best sound the
speakers can create, and low-end speakers are generally unable to take full advantage of the perfectly
balanced clean signal provided by a high-end signal processor. This is why any prospective purchaser
looking to buy a high-end signal processor should also take the time to make sure their speakers are
capable of producing clean enough sound to take full advantage of it. Otherwise they will have no way
to judge the full effect of the signal processor.it no need complicated wiring connection.It’s
Non-destructive installation.special line socket .the size only around 162X116X45mm,tiny volume,
you can put it in the storage box or copilot seat,easy installation!
For those people who do not want to change the original car stereo but want to improve the quality
of the original car sound quality customers, this is a very suitable product, it is provide you a proviate
space of platform of stage.
Specialty Software Requirement
The functionality of this product requires the use of PUZU software to set up.
Please visit http://www.puzuaudio.com/page193?_l=en to download the latest version of PUZU
software and supporting documents.the software only for computer at this moment.
Planning Your Installation
It is important that you take the time to read this manual and that you plan your installation carefully.
It is very easy to damage expensive vehicle systems in modern automobiles,Never assume that you
have found appropriate wires without consulting a reliable wiring diagram or without perfoming signal
testing with proper test equipment,if you are uncomfortable or unfamiliar with reading diagrams or
testing signals,please enlist the services of your authorized PUZU Audio dealer to perform the
installtion.
ISO SOCKET (CONNECT TO CAR)
(Can be placed under the storage box or copilot seat)
ISO SOCKET (CONNECT TO CAR RADIO)
CAR RADIO WITH
ISO CABLE
USB
gps
FM/A M
MOD ORIGINAL
HOME
Total wire length:1.5m
Take VW for example

After download the software and installed in your tablet computer
you can see the software interface as below:
When the DSP Amplifier connected with PC succed,There screen will show connected succeed on the up
left side on the interface.(We provide you an USB wire to connect it)
1. high and low High and low pass
low pass means Bands above this frequency are cut off, and bands below this frequency are passed.
high pass means Bands below this frequency are cut off,and bands about this frequency are passed.
Slope refers to the degree of inclination of the curve,The larger the slope, the more skewed the curve

2.Limiter
limiter is a circuit that allows signals below a specified input power or level to pass unaffected while
attenuating (lowering) the peaks of stronger signals that exceed this threshold. Limiting is a type of
dynamic range compression. Clipping is an extreme version of limiting.Limiting is any process by
which a specified characteristic (usually amplitude) of the output of a device is prevented from
exceeding a predetermined value.Limiters are common as a safety device in live sound and broadcast
applications to prevent sudden volume peaks from occurring. Limiters are also used as protective
features in some components of sound reinforcement systems (e.g., powered mixing boards and
power amplifiers) and in some bass amps, to prevent unwanted distortion or speaker damage.
( )Note:PUZU soft ware already set it when factory,you no need set this
3.Equalizer

EQ means Equalizer,It can adjust the frequency band, gain, attenuation value, it can change the
composition of the sound frequency in the harmonic level, designed for a particular type of music
to optimize and enhance the effect.
Following parameters may help you when leanring this software
1.Effect of different frequencies on the tone
Frequency Lower Proper higher
16K-20KHz
12K-16KHz
10K-12KHz
8K-10KHz
6K-8KHz
5K-6KHz
4K-5KHz
4KHz
2K-3KHz
1K-2KHz
800Hz
500-800Hz
300-500Hz
150Hz-300Hz
100-150Hz
60-100Hz
20-60Hz
The tone lacks of
expressiveness Tone expressive and charm Strong sense of instability
Lost luster Golden splashes Hairy, harsh
Boring, tarnished Strong sense of metal Light noise
dull sound is smooth sharp
dim Transparent Tooth sound heavy
vague High definition sharp
the sound is getting far goodsense of loudness the sound is getting close
blurry Good Penetration Cough soundisheavy
hazy Brightness is better rigid
Loose, tone off good sense of transparency Jump sense
Loose
Shrinkage
Empty sense
Soft feeling
thin
Weakness
emptiness Good sense of space Low frequency resonance
sound appears "hoo”
Low frequency resonance
sound appears "hoo”
Turbid “hum”
Fullness increased
Sound intensity feeling good
Voice powergood
The outline of the
sound is good
Strong sense of depth
Strong sense guttural is heavy
The sound protrudes forward
stiff
Phone sound color
2.The effect of the sound source on the sound
source of sound
singing(Female singer)
singing(male singer)
voice
Scratchy sound
Female voice with noise
nasalis heavy
Tooth sound is heavy
Obviously affect the tone frequency
Affect the brightness of toneduring1.6K-3.6KHz,Improve this frequeny can
make the sound much more brightness
150-600Hz affect the intensity of singing voice, enhance the frequency can
make singing voice resonance enhanced and enhanced
800Hz is a dangerous frequency, too much improve this frequency will make the
sound harder and with angular
improve 64-261Khz frequency
Enhance the 61-315Hz, attenuation 1-4Khz female voice can eliminate noise
attenuation the 60-260Hz,Enhance 1K-2.4KHz can improve it
caused by over high 6Khz

2.The effect of the Musical instruments on the sound
piano
guitar
Bass guitar
electric guitar
Electric bass
tambourine
Snare drum
Bass drum
big drum
The range 27.5-48.5Hz affects the frequency, the tone becomes thinner as the
frequency increases; 20-50Hz provides the peak frequency
600-2Khz affect the brightness, enhance the frequency can make the sound color clear
Saxophone
improve 100-300Hz can make the sound much more fullness; enhance 2k-5KHz
can increase the tone performance
60-100Hz bass fullness; 60-1KHz impact intensity, 2.5Khz is plectrum audio
240H is the fullness frequency, 2.5KHz is the brightness frequency; plectrum is 3K-4KHz
80-240Hz is fullness frequency; 600-1Khz impact intensity; 2.5KHz is plectrum audio
200-240Hz is the resonance frequency; 5KHz affect the presence
240Hz affect fullness; 2KHz impact loudness; 5KHz affect plucked audio
60-100Hz is the bass force frequency; 2.5KHz is the percussion sound frequency
60-150Hz is the intensity of frequency; affect fullness
Super bass:20Hz~40Hz,
Bass:40Hz~150Hz,
Midrange to Bass:150Hz~500Hz,
Midrange:500Hz~2KHz,
Midrange toTreble:2KHz~5KHz,
Treble:7KHz~8KHz,
Super Treble:8KHz~10KHz,
Individual channel adjustment and joint adjustment show as below:
You can adjust the front left,front right,rear left,rear right,center,subwooer speakers
by separate or joint adjustment.

The picture below show the front riht and front left joint adjustment!
About sound delay
Original Delay effect
As listening environment is extremely complex in the car, when we listen to music in the car
the distances are different for every speaker to your ear, we need to let more further speaker
sound delay reaches our ears so that all the sound reach to our ear at the same time.and then
we can achieve the best effect of listening experience, and the sound can be emitted from the
front dash according to your preference, like a concert stage
just like show on the picture above,you can see the difference.
But how to use this function?here we can share some experience for your reference.
Usually you can use “millisecond""CM""INCH”as the unit,we here take CM for example,the way is
easy,Delay processing is the reference to the farthest distance of the speaker as a benchmark,
Then calculate the distance difference between other short range speakers,insert the detail number
into the blank,here we show you an example,if the distance from your ear to your car rear right
speaker (as it’s the furthest distance) is 125CM,while your front left speaker distance is 75CM,while
the delay distance should be 125-75=50CM,insert 50 to the correspond blank.the same way you can
calculate other for speaker ’s distances.

Finally,you can save the mode you just finished parameters.You can use this
paramters next time when you met the same car.For example,you just finished
2016 VW Polo paraters,you can use this parameters next time you need set
the VW polo 2016.
Summary: above manual is our PUZU engineer’s experience of product development
combined with the corresponding practice, the basic operation of the software overview,
becoming a qualified sound tuner need more practice and expereicne when working.
thank you for your trust our products again.for more information you can visit our brand
website:www.puzuaudio.com or call us [phone] for help.
www.puzuaudio.com
WuYi Industrail Zone,HuiZhou GD,CHINA,501600
HUIZHOU SHANGSHUI TECHNOLOGY CO.,LTD