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SoundImpress PU400 Mono Amplifier  
1 x 400W | Eigentakt | Powered by Purifi

The  SoundImpress  PU400  mono  amplifier  is 
made  by  audio  enthusiasts  for  audiophiles. 
It  is  known  that  this  mono  amplifier  has  one 
of  the  biggest  impacts  on  how  the  music 
sounds.  Even  high-end  woofers  from  superb 
brands  such  as  Scan-Speak  hold  back  on  their 
true  potential  when  connected  to  an  inferior 
amplifier. This state-of-the-art class-D amplifier 
from  SoundImpress  ensures  that  you  squeeze 
the  absolute  maximum  out  of  your  speakers!

 

 

State  of  the  art  class-D  amplifier   
By SoundImpress

Thanks  to  high  precision  parts  such  as  op-
amps,  high  voltage  gate  drivers  and  high 
current  MOSFETs,  this  amplifier  can  power 
almost  any  speaker.  Be  it  a  single  subwoofer 
or  your  sophisticated  3-way  tower.  Thanks 
to  the  efficiency  a  high  loop  gain  can  be 
obtained, creating an unparalleled performance.

 

 

The  Eigentakt  implementation  from  Purifi  is 
one  the  best  amplifier  technologies  available. 
This  class-D  technology  meets  high  standards 
and  gives  super  performance  at  any  playback 
level,  regardless  of  load.  This  results  in  a 
stable,  dynamic  and  realistic  sound  image,  at 
any  music  genre.  This  amplifier  will  squeeze 
(with  a  proper  music  source  and  proper  pre-
amplification)  all  the  dynamics  out  of  your 
music  without  distortion,  and  at  any  volume.

 

SoundImpress 

PU400-1CH 

I N T R O D U C T I O N

Minimalistic but powerful

Packed  within  a  minimalastic  high  quality 
aluminum chassis, this is more than just another 
powerful amplifier. Gone are the days of needing 
to have a massive heavy weighted mono power 
amplifier to have excellent sound and achieve some 
volume.  The  amplifier  can  deliver  all  its  power 
from as low as 2 ohm impedance combined with 
low idle loss, very low distortion and noise levels!  

 

 

In addition, this amplifier has a nice appearance, 
an  imposing  look  that  takes  away  all  the 
attention  from  your  other  home  audio  devices. 
A minimalistic design without compromising on 
performance  or  additions  of  cooling  elements. 
Every  amplifier  comes  with  our  own  stamp 
of  approval,  our  iconic  “S”-logo,  on  the  front 
plate.  This  branding  ensures  that  you  own 
a  piece  of  real  quality,  that  is  built  to  last.  A 
small  (dimmable)  LED  displays  is  implemented 
to  show  when  the  device  is  on  or  off.

 

 

But  not  only  the  case  is  puristic;  the  mono 
amplifier  features  the  input  and  outputs  your 
speaker set-up deserves. The amplifier features 
XLR  balanced  inputs.  Convenient  banana-plug 
speaker connectors have been chosen as outputs.

 

 

This 400 watt mono class-D amplifier is ready to 
bring new life to any system!

P U 4 0 0 - 1 C H   |   P a g e   4

Summary of Contents for PU400-1CH MONO

Page 1: ...SoundImpress because the best is just about good enough PU400 1CH MONO USER MANUAL English...

Page 2: ...Eigentakt technology from Purifi Audio offers its users a powerful 425W channel Making this SoundImpress amplifierverycapableandhiglhyaffordable The SoundImpress brand stands for outstanding quality...

Page 3: ...04 05 06 07 10 11 INTRODUCTION SAFETY INSTRUCTIONS WARRANTY TERMS DISPLAY OF CONTROL FUNCTIONS GET STARTED SPECIFICATIONS TABLE OF CONTENTS...

Page 4: ...roper music source and proper pre amplification all the dynamics out of your music without distortion and at any volume SoundImpress PU400 1CH I N T R O D U C T I O N Minimalistic but powerful Packed...

Page 5: ...nnected only to the power source indicated on the label If you are not sure which power source is used in your home contact the dealer or the local power company The best way to disconnect the amplifi...

Page 6: ...Replacement products claimed under warranty are not entitled to renewed 5 year warranty coverage If you discover a defect notify SoundImports during the warranty period Claims under warranty must be s...

Page 7: ...put 3 Channel output 4 On off switch 5 Fuse tray 6 Power input The fuse is supplied as standard When replacing it only use the original value Attention Risk of electric shock DISPLAY OF CONTROL FUNCTI...

Page 8: ...ont panel with engraved logo 2 Dimmable LED indicator 3 Bottom view 4 Switch for LED indicator See the next page for an explanation of the LED switch DISPLAY OF CONTROL FUNCTIONS P U 4 0 0 1 C H P a g...

Page 9: ...DISPLAY OF CONTROL FUNCTIONS 0 LED OFF 1 Normal brightness 2 Max brightness P U 4 0 0 1 C H P a g e 9...

Page 10: ...music ENJOY CONNECTION The PU400 1CH has one set of speaker connections Connect the speaker terminals marked and to the corresponding and terminals of your designated speaker This amplifier will work...

Page 11: ...fficiency 94 Frequency response 0 60 000 Hz Input impedance 4 4k ohms 14 dB 10 2k ohms 27 dB Circuit Topology Eigentakt Amplifier classification Class D Speaker output channels 1 Input connection type...

Page 12: ...s manual in a different language Or prefer a digitial version Scan the QR code SoundImports Peizerweg 97A 9727AJ Groningen Nederland Tel 3185 0711860 E mail info soundimports nl Btw nummer NL861325254...

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