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SETTING NATIVE MODE IN MAC OS X: 

Mac OS X does not allow the music manager, such 
as  iTunes  or  SongBird  to  change  the  Sample  Rate 
on a song by song basis.  For example, if you set the 
sample  rate  of  the  DAC8  driver  in  the  AUDIO  MIDI 
SETUP  panel  to  176400.0Hz  then  iTunes  will  up-
sample  a  44.1  CD  to  176.4kHz  and  send  it  to  the 
DSPre; the 176.4 LED will be lit.  To play a 44.1 CD at 
44.1kHz, simply set the sample rate in the Audio MIDI 
Setup Utility to 44100.0kHz.  See section SETTING THE 
SAMPLE RATE ON MAC OS X: for details. 
To play your music in bit perfect mode at its native 
Sample  Rate  you  will  need  to  purchase  and  install 
software  from  a  third  party  such  as  Pure  Music®, 
Pure  Vinyl®  or  Amarra®.  These  software  packages 
provide bit perfect music transfer to the DSPre and 
allow the native sample rate to be sent to the DSPre 
on a song by song basis. 

GETTING THE MOST OUT OF YOUR DSPRE: 

The  DSPre  has  many  new  features  that  can  be 
enhanced when used with some of the top MUSIC 
MANAGEMENT  software  packages  and  computer 
to  S/PDIF  conversion  hardware.    Please  take  a 
moment  to  read  through  this  section  and  see  if 
you’re getting the most out of your DSPre setup. 

S/PDIF, USB 2.0 HS and MUSIC MANAGEMENT: 

The  DSPRE  was  designed  to  provide  your  high-end 
audio system with bit perfect 24 bit audio at sample 
rates not possible from a CD or SACD player.   Red 
Book  CD’s  are  recorded  at  16  bits,  44.1kHz  sample 
rates; your DSPRE is capable of playing back digital 
music  recorded  at  24bits  and  sample  rates  up  to 
192kHz.  With your DSPre you can: 
Take the S/PDIF output from your current CD or DVD 
player  and  enjoy  the  sonic  benefits  of  the  Quad 
DAC  architecture,  low  jitter  dual  master  oscillators 
and  high  bandwidth  direct  coupled  differential 
amplifiers while playing your favorite CD’s. 
It  is  also  possible  to  take  the  S/PDIF  output  from 
many  of  the  multiroom  home  audio  systems  that 
are  on  the  market.    AppleTV®,  Sonos®  and  many 
others  provide  wired/wireless  multiroom  music 
management systems that have S/PDIF outputs that 
work well with the DSPRE. 
If  you  want  to  play  back  S/PDIF  music  at  a  higher 
resolution and sample rate, you can assemble a HD 
music  server  computer  system.    Your  Audio  Dealer 
or 

the 

HRx 

web 

site 

at 

http://www.referencerecordings.com/HRxSETUPS.as
p  can  give  you  ideas  on  how  to  construct  a  high 
resolution  music  server  that  will  provide  an  S/PDIF 
signal to the DSPRE. 
If  you  desire  to  play  high  resolution  music  files  via 
the  USB  2.0  HS  interface  to  the  DSPre,  all  you  do  is 
connect  your  computer  to  the  DSPre  via  a  good 
quality  high  speed  USB  2.0  (480Mbps)  cable  and 
install  the  DSPre  HD  Audio  Device  drivers.    Once 

connected  you  are  ready  to  sit  back  and  enjoy 
your favorite tunes. 
A  large  part  of  the  digital  music  experience  is 
managing  and  organizing  your  music  for  fast  and 
accurate  playback  through  the  DSPre  to  your 
audio  system.    There  are  several  software  music 
managers  available  to  enhance  your  music 
experience;  on  PC’s,  J  Rivers  Media  Center®, 
Mediamonkey®  and  FooBar®  are  three  that 
provide  the  ability  to  connect  to  the  DSPre’s  HD 
Audio Device drivers for bit perfect music playback 
in  its  Native  mode.    Others  such  as  iTunes®, 
SongBird®  and  Windows  Media  Player®  are 
excellent media managers that will play your music 
through the “Windows Sound Control” interface.  To 
assure  bit  perfect  data  transfer  with  these  music 
managers follow the instructions in the “SETTING THE 
SAMPLE  RATE  OR  NATIVE  MODE”  section.    The 
resources at http://www.computeraudiophile.com/ 
and  other  digital  music  web  sites  can  help  you 
select  a  media  manager  and  provide  other 
information  aimed  at  enhancing  your  music 
enjoyment. 
 

 

Содержание DSPre

Страница 1: ...Owner s Manual DSPre Stereo Preamplifier DAC...

Страница 2: ......

Страница 3: ...ion of Controls 6 7 Programming Input Names 7 Connections 7 8 Installation Instructions 8 Operating Procedure 8 Tape Recording Procedure 8 Software Installation 9 13 Troubleshooting Guide 14 FCC and S...

Страница 4: ...1A FUSE SLO BLO T1 0A 230V 12V REMOTE TRIGGER STEREO DAC PREAMPLIFIER RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION PLYMOUTH MINNESOTA MADE IN U S A MODEL DSPre VOLTS SERIAL RS 232 IR INPUT USB2 0HS RCA...

Страница 5: ...All functions are indicated in the display window as they are selected See Description of Controls in this manual for more information DISPLAY BAL L BAL R INVERT MONO POWER VOL DN VOL UP MENU DSPre E...

Страница 6: ...engaged to avoid unexpected or possibly damaging sound levels Reduce volume level whenever changing input sources even when muted The rotary control on the right selects any of five analog inputs sour...

Страница 7: ...be able to control the USB source component to PLAY PAUSE TRACK ADVANCE and TRACK BACK Because of the wide variety of operating systems and software programs Audio Research cannot guarantee that the...

Страница 8: ...nto grounded AC wall outlet The Power switch defaults to off when the unit is plugged into a power receptacle 3 Press power switch either remote or front panel Mute will will flash in the display wind...

Страница 9: ...ction follow the on screen prompts as you install the DSPre HD Audio device drivers Press NEXT when the WELCOME window appears When asked to accept or decline the License Agreement check the ACCEPT bo...

Страница 10: ...or details The DAC8 USB drivers are used in the DSPre All of the software during the installation process will be labeled DAC8 MAC SOFTWARE INSTALLATION INSTRUCTIONS Installation of the DSPre HD Audio...

Страница 11: ...lay mostly 44 1 ripped CD s then select 44 1 88 2 or 176 4kHz This will select the correct Master Oscillator in the DSPre for CD s USING THE DSPre CONTROL PANEL In Windows when you installed the DSPre...

Страница 12: ...DSPre is connected to your PC via a high quality USB cable and plugged into an appropriate AC outlet If that has been done and you still do not see the DAC8 listed in the SOUND panel you should do a r...

Страница 13: ...direct coupled differential amplifiers while playing your favorite CD s It is also possible to take the S PDIF output from many of the multiroom home audio systems that are on the market AppleTV Sono...

Страница 14: ...ess the Mute button then turn off the preamp and unplug the preamp from the A C receptacle for 60 seconds Reconnect the A C plug and turn the preamp back on along with other components The controls sh...

Страница 15: ...anty vacuum tubes This Limited Warranty initiates from the date of purchase and is limited to the original purchaser or in the case of demonstration equipment limited to the balance of warranty remain...

Страница 16: ...92kHz SPDIF and USB 2 0HS Master Oscillator 22 579mHz 20Hz for 44 1 88 2 and 176 4kHz 24 576mHz 20Hz for 48 96 and 192kHz sample rates Intrinsic Jitter 10ps Controls Rotary volume selector 104 steps a...

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