Constellation Altair II Owner'S Manual Download Page 3

 

 

 

 

Thank you for purchasing the Constellation Audio Altair II preamplifier.

 This new 

revised version of the original Altair II has been engineered to deliver a superbly user-
friendly experience—and to offer a few subtle performance enhancements as well. 
 
The Altair II employs the same revolutionary circuitry pioneered in our Altair preamp. 
The biggest difference is that the user can now control all functions from the front 
panel. As with the original, the advanced design necessarily demands a somewhat 
different setup process compared with typical stereo preamps. By reading this manual 
before you operate the Altair II, you assure that you get maximum performance from 
your system. 

 

Contents 
 

Page 

Topic 

Before you install the Altair II 

 

 

Unpacking 

 

 

Power supply setup 

 

 

Installation notes 

 

 

In the event of malfunction

 

Source device and amplifier connections 

 

 

XLR inputs 

 

 

RCA inputs 

 

 

XLR outputs 

 

 

RCA outputs

 

Other connections on the Altair II 

 

 

Power inputs 

 

 

RS-232 

 

 

USB / control 

 

 

DC power 

11 

Controls / displays / indicators 

 

 

Front panel knobs and buttons 

13 

Remote control 

14 

Control screens 

16 

Step-by-step operating procedure 

17 

Maintenance 

17 

Troubleshooting 

19 

For more information 

 

 
 

 

Summary of Contents for Altair II

Page 1: ......

Page 2: ...excessive humidity The lightning flash with arrowhead within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that...

Page 3: ...ands a somewhat different setup process compared with typical stereo preamps By reading this manual before you operate the Altair II you assure that you get maximum performance from your system Conten...

Page 4: ...supply as shown above Repeat with the Left Analog Power and Control Power connections At this point you can plug the Altair II power supply into the wall socket Leave the master power switch off unti...

Page 5: ...e If the Altair II has not warmed up for 15 to 30 minutes from a cold start you may notice a slight left to right channel imbalance This may be corrected temporarily using the balance control Installi...

Page 6: ...neath each jack is the corresponding input number Use of XLR connections is recommended for the best possible audio quality To remove an XLR plug push on the tab above the jack and pull the plug out I...

Page 7: ...de by side fashion will result in an incorrect installation and the mixing of sounds from different source devices 3 XLR outputs The inner six XLR connections on the rear of the Altair II are outputs...

Page 8: ...plug grasp it by the connector body and pull the plug out Other connections on the Altair II 5 Power inputs These inputs connect to the power outputs of the Altair II s separate power supply The Altai...

Page 9: ...This 3 5mm input jack allows the Altair II to turn a connected device such as a Constellation Audio amplifier on and off automatically When the Altair II is powered up or in Standby mode this jack em...

Page 10: ...the Analog power jack on the power supply and the Control power jack on the preamp to the Control power jack on the power supply Before connecting these cables switch off the power supply and disconne...

Page 11: ...resistors used in the volume control reach optimal performance only after warm up If the preamp has not warmed up for 15 to 30 minutes after initial power on you may notice a slight balance difference...

Page 12: ...silence the audio but keep the power supply on so the unit stays warmed up press this button again after turning on the power Hold this button down for 5 seconds to turn the preamp off The unit will e...

Page 13: ...t keep the power supply on so the unit stays warmed up press this button again after turning on the power 20 Mute Press this to button to silence the Altair II temporarily The numerical volume readout...

Page 14: ...gh the LCD touchscreen Here is how the control screens function Input selector or home screen This screen appears when the power is on and the unit is warmed up Touching any input button onscreen will...

Page 15: ...o use for this function then adjust the volume on the Altair II to the desired level Push the Set Min button then the Set Max button then the Apply button To clear these settings press CLR Min then CL...

Page 16: ...button on the remote Enable playback on the chosen source device STEP 3 Adjust listening volume with the volume knob on the front of the unit or the volume up down buttons on the remote Note that the...

Page 17: ...d the Altair II s power supply Push the wall plug and the connector at the power supply in firmly B Check power cables between Altair II and power supply DO NOT pull out these cables while the power s...

Page 18: ...inding post on the amplifier and the unmarked connector or cable connected to the negative black or binding post 3 If you need to change the speaker cable connection turn the amplifier off first To av...

Page 19: ...me theater bypass this situation is normal volume and balance controls do not function in this mode 2 If you are not using an input configured for home theater bypass you need to clear out the minimum...

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