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A U D I O P H I L L E O 1 & 2   U S E R   M A N U A L  

18 

 

Solid  ON  for 
10-20 seconds 

1.23 above 

Firmware  upgrade  mode  initiated  (displayed  on  ap1  after 
firmware->update menu is entered or on ap2 when firmware file 

detected in audio stream. 

 

The table below lists all possible LED error codes.  Because they are fatal errors, these 
error codes are repeated indefinitely once they occur.  Under normal usage these codes 

should never occur.  If you see these errors, please contact technical support. 

Flashes 

Meaning 

LLS 

The computer is a not a high speed USB host.  Please connect the 

device to a high speed USB port 

LLSS 

Flash memory polling error 

LLSSS 

Flash erase error 

LLSSSS 

Flash write error 

LLSSSSS 

SPDIF buffer problem 

LLSSSSSS 

SPDIF interrupt problem 

LLSL 

SPDIF underflow 

LLSSL 

Menu Find ID problem 

LLSSSL 

No empty remote control set found 

LLSSSSL 

Problem rebooting device 

LLSSSSSL 

Serial number invalid 

LLSLL 

Power supply missing 

LLSSLL 

USB CRC error (audio buffer corruption) 

 

Note

: The Audiophilleo1 may display the message “Waiting for computer” after being 

plugged in.  This means that the computer is not configuring the Audiophilleo1 in a 

reasonable amount of time. 

 

Summary of Contents for Audiophilleo1

Page 1: ...udioPhilleo perceive the world through hearing Owner Manual Audiophilleo1 Audiophilleo2 Revision1 12 January5 2014 Audiophilleo LLC 8476 Portland Pl McLean VA support audiophilleo com Phone 703 674 8165 ...

Page 2: ... Control 12 VirtualCable 13 JitterSimulator 14 SPDIF Status Bits 14 Other features 15 Troubleshooting and Status LED 16 LED Codes 16 Firmware Update 19 Audiophilleo1 Update Procedure 20 Audiophilleo2 Update Procedure 20 Checking current Audiophilleo2 firmware version 20 Upgrading if your firmware is 1 22 or below 21 Upgrading if current firmware is 1 23 or above 22 Specifications 23 Jitter 23 Comp...

Page 3: ...y 4 2011 1 5 Updated LED codes June 1 2011 1 6 Update BitPerfect info Dec 30 2012 1 8 Added Media Player and PC Setup section Updated firmware updated procedure for clarity and to reflect recent enhancements Feb 14 2013 1 10 Added information about foobar Added information about SPDIF status bits Sept 22 2013 1 11 Small clarification in firmware update Jan 4 2014 1 12 Documented Pro Mode volume se...

Page 4: ...this adapter for direct attachment to a BNC fitted DAC One BNC male to RCA male adapter Use this adapter for direct attachment to an RCA fitted DAC Note that BNC connection is better than RCA connection One BNC male to RCA female adapter One 6 foot USB cable This cable has been tested to produce optimal SPDIF output You may feel free to substitute your own cable but there should be no audible diff...

Page 5: ...ter just like a keyboard would Since OS X thinks the Audiophilleo1 is a keyboard and audio device it will ask you to press keys on the keyboard in order to identify the keyboard layout You can press these keyboard keys in the Audiophilleo1 settings keyboard menu After this the identify window will never come back For information on configuring your computer for BitPerfect audio please see our http...

Page 6: ...ck supports five directions left right up down click After powering up the main screen is displayed When in the main screen joystick up down and click will perform volume up down and mute respectively Pushing the joystick to the right enters a sub menu Pushing to the left goes back to the parent menu or main screen The on screen arrows always tell you whether you can push the joystick left and or ...

Page 7: ...A U D I O P H I L L E O 1 2 U S E R M A N U A L 6 To get familiar with the main screen please plug in your device and press and hold the joystick for help on the main screen ...

Page 8: ...lease check http audiophilleo com support aspx There are a variety of media players available under windows Windows Media Player JRMC Foobar2000 JPLAY XMPlay and many others It is important to use the proper sound output method Most audiophile users will use WASAPI Push WASAPI Event ASIO4ALL or Kernel Streaming KS for output DirectSound DS is generally considered of lower quality partially because...

Page 9: ...ers such as JRMC and foobar2000 will automatically switch the sample rate to that of the audio file it is playing as long as you don t use DirectSound DS output Note that for foobar2000 WASAPI playback you should obtain WASAPI plugin version 3 1 or above Also when using WASAPI event mode make sure the hardware buffer is set to a minimum of 25 as shown below or there will be pops clicks in the audi...

Page 10: ... Apple iOS For use with iOS you will need the iPad camera connection kit Also please check the iPad specification for maximum allowed power output Some models will require a powered USB hub to supply power to the Audiophilleo This is due to the fact that the iPad limits the maximum current supplied to 20mA or 100mA depending on model Other models such as iPhone 5 may also be supported The Apple st...

Page 11: ...t to go up to the desired maximum The user may also lock the volume at the current setting This can be useful when using an external analog volume control The computer will think that it can set the Audiophilleo1 volume but the Audiophilleo1 will simply ignore it Finally Pro mode can be enabled This causes the Audiophilleo to ignore the computer s requested volume level The Audiophilleo does not s...

Page 12: ... and 2 turn on and off via your infrared remote control No more forgetting to turn off your amps You can also use these to trigger a retractable screen or curtain If your amps do not have 12V trigger inputs then you can use a variety of triggerable power strips conditioners such as the HTS1000 MKII A variety of higher end conditioners with trigger inputs is also available For more information plea...

Page 13: ...in this menu However we recommend that you turn off your stereo when doing BitPerfect testing Note Please make sure that all volume controls except that of the Audiophilleo1 are set to 100 Also you must set the sample rate of your media player to be the same as that of the BitPerfect file you are playing Note iTunes needs to be quit from the menu and restarted every time the sample rate is changed...

Page 14: ...nstantly via remote control so that you can hear any difference immediately from your listening position The VirtualCable feature is in the settings SPDIF VirtualCable menu The joystick may be pushed up down in order to select any of the following levels Level Edge Transition Time 0 700ps transitions 1 1 2ns transitions 2 4ns transitions 3 7ns transitions 4 11ns transitions 5 15ns transitions Note...

Page 15: ... the Bel Canto USB Link but worse than some other SPDIF transports on the market You may access this menu directly from the remote with the JitterSim command Most importantly while in this menu you can set the jitter level instantly via remote control buttons 0 and 1 so that you can hear any difference immediately from your listening position Note Level 1 jitter is only available when using sample...

Page 16: ...via remote control Swapping L R channels for easier wiring Phase Inversion allows for phase inversion of the audio signal This is identical to reversing the plus minus terminals on both speakers This is available in the settings Volume Invert Phase menu and can also be done via remote control from your listening position Generate low jitter clock signals from 7056Mhz to 12 288Mhz This allows the A...

Page 17: ...diately flash very briefly After this first flash the LED will display status or error messages The LED is normally off and displays codes by flashing much like Morse code There are 2 flash durations L long 1 seconds S short 3 seconds A message is displayed by producing a sequence of L and S flashes The LED is normally off When no LED codes are being displayed the LED will do an S SS or SSS flash ...

Page 18: ...ugging in LSSSL Linux operating system detected displayed after plugging in LSSSSL Apple OSX operating system detected displayed after plugging in Firmware upgrade codes shown when playing firmware wav LSLL Firmware Updated displayed after successful firmware upgrade after the device reboots LSSLL Firmware already up to date displayed after successfully reading a firmware file but determining that...

Page 19: ...port Flashes Meaning LLS The computer is a not a high speed USB host Please connect the device to a high speed USB port LLSS Flash memory polling error LLSSS Flash erase error LLSSSS Flash write error LLSSSSS SPDIF buffer problem LLSSSSSS SPDIF interrupt problem LLSL SPDIF underflow LLSSL Menu Find ID problem LLSSSL No empty remote control set found LLSSSSL Problem rebooting device LLSSSSSL Serial...

Page 20: ...computer or unplug the device during a firmware update Doing so may make the device unusable The device will always reboot itself at the end of a firmware upgrade No unplug and re plug procedure is required However this procedure should never take more than a minute after starting to play the firmware file so after 1 minute of not playing the file it is safe to unplug Note When using MS Windows an...

Page 21: ...tings or learned remote control codes have been reset to defaults This is done only when the new firmware requires it You may also use the about screen to verify the new firmware version Note If there are errors during firmware upload it likely means that that the computer is modifying the audio stream Please exit and re enter the firmware update menu before playing the firmware file again Note Th...

Page 22: ...your firmware is 1 22 or below After plugging in the device you have 30 seconds to play the firmware update file using your favorite media player Once the file plays you should see LED code LSSSSLL it may be preceded by code LS since the 44 1 sample rate is also being set This means that the firmware file is detected and being scanned One of the following messages will then be displayed LSLL means...

Page 23: ...about 5 to 30 seconds settings are not detect after 45 seconds of power up 4 Play the firmware wav file using your favorite media player 5 Within a few seconds the LED should turn on solid no blinking messages NEVER power cycle the ap2 when the LED is on solid This means that the firmware file was detected and that you can continue to step 6 If the LED does not do this it usually means that the me...

Page 24: ...gnals In order to use the 5120A we had to generate periodic clock signals instead of the BMC encoded SPDIF signals Fortunately we generate all our signaling in software so in addition to outputting audio our SPDIF output stage can output a clock signal as well This uses the exact same hardware path and clocks as generating the SPDIF signal To do this we included an Audiophilleo1 feature under sett...

Page 25: ...iver in them is largely the same they should all be compatible with our devices XP OSX and Linux will support all sample rates up to 192Khz without any drivers Under Vista 7 the native driver supports up to 96Khz and our optional free custom driver provides support for up to 192Khz Note that the iPad is limited to 16 bit 44 or 48Khz output CD quality Sample Rates 44 1 48 88 2 96 176 4 and 192Khz s...

Page 26: ...25 Electrical SPDIF output 300mV amplitude minimal overshoot and female BNC connector Edge transitions 700ps Audiophilleo1 has programmable rates up to 15ns USB Bus Power 500ma Max USB Cable Length 5m ...

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