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Audionet PRE G2, User Manual

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Audionet PRE G2 User Manual Download Page 39

39

 

Features 

-

 

Audionet  System  Remote  Control 

Harmony  One 

(included) 

-

 

automatic detection of main polarization 

-

 

separate power supply for digital and analog sections 

-

 

separate power supply for left and right audio channels 
(analog) 

-

 

electronically  switched  and  real  time  linearised 
precision resistors for volume control 

-

 

discrete  Audionet  operational  amplifiers  in  the  
audio signal path 

-

 

audio and control functions optically decoupled 

-

 

full DC coupling, no capacitors in the signal path 

-

 

selectable AC coupling via DC servo 

-

 

separate level adjustment for each input channel 

-

 

By-Pass  function  (e.g.  for  integration  into  home  cin-
ema systems) 

-

 

Auto start function for timer operations 

-

 

Audionet  Link  outputs  for  remote  control  of  other 
Audionet components (e.g. power amplifiers) 

Options 

recommended for phono applications: 
external phono pre-amplifier Audionet PAM 
(with optional external power supply Audionet EPS) 

 

Errors and omissions excepted. Specifications and design are subject to changes without prior notice. 

 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 

audionet

 is a trademark of Idektron GmbH & Co KG 

 

Engineered and produced by: 

Idektron GmbH & Co. KG, Herner Str. 299, Gebäude 6, 44809 Bochum, Germany 

www.audionet.de 

[email protected] 

Summary of Contents for PRE G2

Page 1: ...1 Reference Pre Amplifier User s Manual ...

Page 2: ...2 ...

Page 3: ...tion 10 5 Inputs and outputs 11 5 1 Inputs 11 5 2 Outputs 11 5 3 Recording devices 12 5 4 Audionet Link 12 6 Usage 13 6 1 Powering up 13 6 2 Switching on and off 13 6 3 Mains phase detection 14 6 4 Using Audionet Link 14 6 5 Control elements on the front panel 15 6 6 Volume control 15 6 7 Display 16 6 8 Input selection 17 6 9 Muting 17 7 Setup Menu 19 7 1 Set Dim Level 20 7 2 Balance Adjust 21 7 3...

Page 4: ...ults 26 8 Audionet System Remote Control 27 8 1 Key assignment PRE G2 29 8 2 Screen 1 30 8 3 Screen 2 31 8 4 Screen 3 32 9 Special function By Pass Mode 33 10 Technical information 35 10 1 Design 35 10 2 Power supply 35 10 3 Circuitry 35 10 4 Handling 35 10 5 Update PRE to PRE G2 36 11 Security advice 37 12 Technical data 38 ...

Page 5: ...m plifiers incremental encoder and signal cables ourselves Volume is con trolled by an electronically switched and in real time linearized resistor network made of discrete high quality metal film resistors The audio signal path and control circuitry are decoupled optically Input and output circuits are immune to negative influences of connected devices Thus the PRE G2 manifests the limits of what...

Page 6: ...y reading one standard power cord one green yellow cord for an additional earth connection 1 2 Transport Important Please transport the PRE G2 only in the included package Always use the plastic bag to prevent scratches on the casing Please allow the PRE G2 to adapt to the climatic conditions in your listening room before you switch on the unit for the first time after transport ...

Page 7: ...7 2 Overview front panel power key mute key IR remote control recevier input key volume knob incremental encoder Display PRE G2 Stereo Preamplifier set mute power volume input set key ...

Page 8: ...Cinch line input no 3 left right 4 Cinch line input no 4 left right 5 Cinch line input no 5 left right 6 Cinch line input no 6 left right 7 Cinch line output left right 8 Balanced XLR outputs left right 9 Inverted Cinch line output left right 10 Monitor output left right 11 Outputs Audionet Link 1 and 2 12 Mains input 13 Marking mains phase 14 Mains switch 15 Additional earth connector ...

Page 9: ...he PRE G2 on top of other units especially not on top of power amplifiers pre amplifiers or similar that produce heat Both units could suffer damage from thermal overload Do not use the unit in places where it is exposed to vibrations Do not place the unit close to loudspeakers or into the corner of a room where it is exposed to high levels of sonic energy which might reduce the sound quality of t...

Page 10: ...g The correct polarization of mains is important for reasons of audio clarity and stability Please connect the mains cord so that the hot pin of the wall outlet is connected to the pin of the mains input 12 marked PHASE 13 Your Audionet PRE G2 is able to detect a wrong polarization of the mains plug during start up If the message Attention Mains Phase incorrect appears in the display switch off th...

Page 11: ...f the source you would like to connect to the PRE G2 5 2 Outputs The PRE G2 is equipped with a pair of balanced XLR 8 and a pair of Cinch line outputs 7 and 9 for the left and right channel each to con nect the unit to your amplifier s The Cinch line output 9 is inverted Due to the double mono design the left and right output jacks are sepa rated Use the left and right Cinch line output 7 to conne...

Page 12: ...puts the monitor output 10 will always be active 5 4 Audionet Link For your convenience the PRE G2 can switch on off all other Audionet units e g power amplifiers connected via Audionet Link by a simple touch on the included remote control or the power key on the front panel You only need a simple optical Toslink cable Connect the Audionet Link output 11 of your PRE G2 to the Audionet Link input o...

Page 13: ...isconnect the PRE G2 from mains Operate the mains switch 14 on the back panel of the unit to switch off the unit from mains The display will go dark Important Before you switch off the PRE G2 from mains power down and discharge completely all units connected to the outputs of the PRE G2 6 2 Switching on and off To power up the PRE G2 from stand by mode press the power key on the front panel The PR...

Page 14: ...the PRE G2 issues the mains polarization warning or no warning at all for both positions of the mains plug check the connection to earth of your mains socket and mains cord You have to ensure a stable connection to earth for the mains phase detection of the PRE G2 to work correctly 6 4 Using Audionet Link Your PRE G2 is equipped with two Audionet Link outputs 11 allowing you to switch on off furth...

Page 15: ...e 13 6 6 Volume control Use the volume knob on the front panel of the PRE G2 to set the desired volume level Turn volume knob clockwise to increase volume turn counter clockwise to decrease volume The volume control of the PRE G2 runs in a range from 80 dB to 10 dB in real 1 dB steps relatively to the level of the input signal Dif ferences in input levels can be adjusted for each input channel of ...

Page 16: ...l on page 15 4 offset for input level of currently selected input channel see section Offset Adjust on page 22 As soon as you enter the setup menu by pushing the set key the display changes to show information related to the selected menu item For fur ther display details refer to the description of each menu item in section Setup Menu starting from page 19 Note After 10 minutes without any user i...

Page 17: ...the Audionet System Remote Control Harmony One select an input channel by simply pressing the corresponding key see section Screen 1 on page 30 or digit key see section Key assignment PRE G2 on page 29 Alternatively use the keys Ch and Ch to switch to the next or previous input channel without using the Se lect Input function see section Key assignment PRE G2 on page 29 6 9 Muting Push the mute ke...

Page 18: ... de mute the unit If you turn the volume knob while the unit is muted the new volume level will be set and the unit de muted if you turn the volume knob clockwise i e you turn up the volume Use key on the Audionet System Remote Control Harmony One to control the muting of your PRE G2 from the comfort of your listening chair see section Key assignment PRE G2 on page 29 ...

Page 19: ...onds The PRE G2 will return to normal operation mode The order of items in the setup menu is ê 1 SET DIM LEVEL ê BALANCE ADJ ê OFFSET ADJUST ê SET DC SERVO ê channel name ê SET AUTOSTART ê SET OFF TEXT ê SET CHANNEL FOR BY PASS MODE Change any setting of a menu item using the volume knob on the front panel Tip All settings of the setup menu can be dealt with by using the keys of the front panel Ho...

Page 20: ...ned in detail 7 1 Set Dim Level To adjust the brightness of the display on the front of the PRE G2 press the set key once for less than two seconds Now use the volume knob to select the desired brightness Turn clock wise to increase or turn counter clockwise to decrease the brightness Important Long term usage of the display set to maximum brightness set ting 100 may cause extended signs of wear r...

Page 21: ...included Audionet System Remote Control Harmony One Use keys Vol and Vol to select desired brightness 7 2 Balance Adjust Push set key twice for less than two seconds The display reads now Adjust now the balance by using the volume knob Turn clockwise to shift the balance to the right The 1st line of the display shows the volume difference in dB between left and right channel A positive value means...

Page 22: ...hannel i e if the balance is shifted to the right the level of the left channel is attenuated and vice versa 7 3 Offset Adjust Push set key on the front panel three times for less than two seconds to get to the offset adjustment option Turn volume knob clockwise to increase the input level of the current channel If you would like to decrease the input level turn volume knob counter clockwise The d...

Page 23: ...knob counter clockwise to disable the DC Servo disabled The DC Servo is disabled for the currently selected input channel active The DC Servo is active for the currently selected input channel Activate the DC Servo if the source connected to the PRE G2 holds a high DC component in its output signal The DC Servo eliminates the DC component The currently selected input channel is now AC coupled Usua...

Page 24: ...ect the desired character Push the mute key to advance the cursor to the next character position After last position the cursor wraps around and starts at the first position again Tip If you would like to re name the channel name for more than just the currently selected input channel use keys Ch and Ch of the Audionet System Remote Control to switch to the desired input channel The PRE G2 does no...

Page 25: ...y go into nor mal operating mode Use this setting for timer controlled operations 7 7 Set Off Text Push the set key on the front panel seven times for less than two seconds to select the display option during stand by mode Turn the volume knob clockwise to select display option dot Turn vol ume knob counter clockwise to select display option off off The stand by mode is indicated by the text off d...

Page 26: ...ss Mode the display will show SET CHANNEL FOR BY PASS MODE Important Before you can use the By Pass Mode you have to select the input channel that is used for the By Pass Mode Otherwise the PRE G2 will issue the warning No input for By Pass selected For safety reasons the factory default settings have no input channel selected for By Pass Mode display SET CHANNEL FOR BY PASS MODE 7 9 Overview fact...

Page 27: ...tivities For detailed infor mation on how to customize and use Activities on your Harmony One please consult the separate user s manual that came with your Harmony One 1 Power key for use with Activities turns all devices off that are in cluded into the current Activity See separate user s manual of Har mony One 2 Depending on the operational mode the touch screen of the Har mony One shows a list ...

Page 28: ... below to control the PRE G2 refer to the fac tory default programming of the Audionet System Remote Control Harmony One Understandably any changes done to this setup by the user cannot be discussed here Tip In order to switch the PRE G2 on off without using an Activity please use the keys Power On Power Off and or Power Toggle on screen 3 see section Screen 3 on page 32 Of course it is possible t...

Page 29: ...en page 2 see section Screen 2 in page 31 2 Vol increases the volume of the PRE G2 also for selecting setup options Vol equals turning the volume knob on the front panel clockwise 3 Ch switches to the next input channel see section Input selec tion on page 17 6 3 Balanced Input PRE G2 1 3 pages Devices Mi 14 51 Current Activity Input Three Input Four Tape Input Phono Input 1 2 5 4 7 Input Two ...

Page 30: ...o the front panel see section Muting on page 17 7 Digit keys for direct input selection see section Input selection on page 17 8 2 Screen 1 1 Directly selects input channel no 1 2 Directly selects input channel no 2 3 Directly selects input channel no 3 4 Directly selects input channel no 4 5 Directly selects input channel no 5 6 Directly selects input channel no 6 Input Two PRE G2 1 3 pages Devic...

Page 31: ...isplay jumps directly to the setup menu item Set Dim Level see section Set Dim Level on page 20 3 Use Set to navigate through the setup menus This key has the same function as the set key on the front panel see section Setup Menu on page 19 or key Menu of the Harmony One see section Key assignment PRE G2 on page 29 PRE G2 2 3 pages Devices Mi 14 51 Current Activity By Pass Mode Dim Display Set 3 1...

Page 32: ...n as the power key onthe front panel If the PRE G2 is in stand by mode Power Toggle switches on the unit If the PRE G2 is already switched on Power Toggle switches off the unit to stand by mode 3 If the PRE G2 is witched on use key Power Off to switch the unit off to stand by mode Power On PRE G2 3 3 pages Devices Mi 14 51 Current Activity Power Toggle Power Off 3 2 1 ...

Page 33: ...el for By Pass Mode to select desired input channel for the By Pass Mode If no input channel is selecteds and you try to invoke the By Pass Mode the PRE G2 will issue the warnung No input for By Pass selected see section Set Channel for By Pass Mode on page 26 Is the By Pass Mode active the volume control of the PRE G2 is by passed The PRE G2 passes through the input signal to the outputs with its...

Page 34: ...e first time The input signal will be passed through to the outputs at full level As soon as the By Pass Mode is activated the PRE G2 will ignore all control commands coming from the keys on the front panel or remote control exceptions see below Important There are only two possibilities to disable the By Pass Mode 1 Press key By Pass Mode of the Audionet System Remote Con trol The PRE G2 switches...

Page 35: ... accumulator like Also the digital section has its separate power supply 10 3 Circuitry All operational amplifiers OP in the signal path are discrete and opti mized for their special purpose Each OP is supplied with power by to fast and discrete regulators All 10 discrete OP modules work in low dis tortion Class A mode and have a gain bandwidth product of 1 5 GHz The input OPs have a nearly infini...

Page 36: ...switching on off via Audionet Link Each input channel features a user selectable DC Servo to eliminate DC components on source signals 10 5 Update PRE to PRE G2 Note An Audionet PRE updated to does not feature a DC Servo The cor responding menu item in the setup menu is omitted for these units Quality of performance and appearance is the equal to the original PRE G2 ...

Page 37: ...not cover the unit Do not open the unit Unauthorised opening will void warranty Do not short circuit the outputs During connecting or removing the PRE G2 to from sources and or power amplifiers all units have to be switched off to prevent damage of the PRE G2 or any of the other connected units Use dry cloth for cleaning We would like to wish you many exciting listening experiences with your new A...

Page 38: ...d plated 1 pair Cinch inverted gold plated 2 pair XLR balanced gold plated 1 pair Cinch Monitor gold plated 2 Audionet Link optical 1 connector gold plated for additional earth connection Output impedance 22 Ohms real Output current max 60 mA Mains 230 V 50 60 Hz Power consumption max 50 Watts Dimensions Width 430 mm Height 140 mm Depth 420 mm Weight 20 kg Finish Front brushed aluminium black anod...

Page 39: ...ble AC coupling via DC servo separate level adjustment for each input channel By Pass function e g for integration into home cin ema systems Auto start function for timer operations Audionet Link outputs for remote control of other Audionet components e g power amplifiers Options recommended for phono applications external phono pre amplifier Audionet PAM with optional external power supply Audion...

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