ESI U108 PRE User Manual Download Page 5

ESI 

U108 PRE

 

 

5

4.

 

switch  for  +48V  phantom  power  for  channels  7  to  10

,  use  this  switch  to  enable  phantom 

power if required for a condenser microphone for inputs 7 to 10. 

5.

 

gain  knobs  for  microphone  inputs  3  to  10

,  allows  you  to  control  the  input  level  which  is 

indicated with the LEDs above it. 

6.

 

MONO switch

, allows you to create a mix down for the input channels to a dual stereo signal 

(i.e. input channel 1 goes to channel 2 and input channel 2 goes to channel 1 for instance), for 
the monitor mix. 

7.

 

LEDs for phantom power

, show the status of the phantom power for each input. There is one 

LED each for input 1, for input 2, for inputs 3-6 and for inputs 7 to 10. 

8.

 

monitoring mixer

, these two gain knobs allow you to control the integrated monitoring mixer 

of U108 PRE. The first knob controls the volume of the input channels, the second the volume 
of the output channels. The mixed signal is available via the headphone output (when selected) 
and the mix output on the backside of the unit. 

9.

 

headphone output

 with 1/4" TRS connector and 

headphone signal selection switch

, use this 

to connect a pair of headphones and control the volume / gain of it with the knob next to it. The 
switch allows you to select if the main signal from output channel 1/2 (switch is off) or from 
the mix output of the integrated monitoring mixer (switch is on) will be used. 

10.

 

power switch / LED

, allows you to switch U108 PRE on and off. When on, the LED next to it 

shows the status.  

The rear panel of U108 PRE has these main features: 

 

 

11.

 

If  required,  this  connects  your  unit  to  a  standard 

laptop  lock  connector

,  preventing  it  from 

being stolen. 

12.

 

12V DC power connector

, connects to the included DC power supply. U108 PRE requires this 

power supply to operate. 

13.

 

USB connection port

, connects to your computer with the supplied USB cable. 

14.

 

mix  output

,  provides  balanced  /  unbalanced  1/4"  TRS  connectors  for  the  stereo  master  mix 

signal  from  the  integrated  monitoring  mixer  of  U108  PRE.  This  connects  typically  to  your 
studio monitors if you choose to use the integrated mixer. 

15.

 

line  outputs  channel  1  to  8

, these balanced / unbalanced 1/4" TRS connectors provide each 

independent  analog  output  signal  of  U108  PRE.  If  you  do  not  use  the  integrated  mixer,  you 
would typically connect output 1/2 to your studio monitors. 

16.

 

microphone  input  channels  3  to  10

  with  XLR  connector,  use  these  connectors  to  connect  

dynamic or condenser microphones. 

Summary of Contents for U108 PRE

Page 1: ...Professional 24 bit USB Audio Interface User s Guide...

Page 2: ...ESI Copyright 2018 Revision 1 May 2018 www esi audio com...

Page 3: ...tallation 6 2 1 System Recommendation 6 2 2 Hardware Installation 6 2 3 Driver Software Installation 6 2 3 1 Installation under Windows 6 2 3 2 Installation under macOS 8 3 Control Panel 9 3 1 Latency...

Page 4: ...ing a multiple number of microphones 1 1 Features The front panel of the U108 PRE hardware has these main features 1 microphone and Hi Z instrument input channel 1 with XLR TRS combo connector use thi...

Page 5: ...adphones and control the volume gain of it with the knob next to it The switch allows you to select if the main signal from output channel 1 2 switch is off or from the mix output of the integrated mo...

Page 6: ...tor on the backside of U108 PRE Once this connection is made simply install the hardware by plugging it into your computer with the supplied USB cable USB port of a computer 2 3 Driver Software Instal...

Page 7: ...appear Click Next and then the dialog on the right will appear Now click Install Files are now being copied After some time an additional dialog will appear Confirm this by clicking Next Again some f...

Page 8: ...S To use U108 PRE under macOS you need to install the driver from the included Installation DVD from the macOS folder or from newer driver download from our website which is recommended The driver and...

Page 9: ...channel Under it the current SAMPLERATE is displayed OUTPUTS The main parts of the OUTPUTS section contains volume control sliders and signal level meters for each playback channel Under each channel...

Page 10: ...software synthesizers a smaller latency is an advantage At the same time the best latency setting indirectly depends on the performance of your system For recording applications a typical latency buff...

Page 11: ...h 1 4 stereo phone connector separate stereo mix output as master monitoring output integrated monitoring mixer controlled on front panel powered by included DC 12V power supply dimensions roughly 45...

Page 12: ...provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not i...

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