User manual
3
Dear valued customer!
Thank you very much for purchasing the xlter Mastering Edition.
In your hands, you’re holding a very sophisticated, handcrafted analog 
stereo 4-band equalizer, with both channels linked for stereo operation. 
All four bands provide a precise control range of +/-5dB as well as a bal-
anced output stage with up to +27dBu.
This unit produces the high-end sound of a Class A equalizer at an amaz-
ing value for the money and provides a precise stereo image based on 
the use of computer-selected components with extremely low toleranc-
es. 
A special feature shines through its double exibility! It oers high- and 
low shelf bands which can be switched to high and low pass lters with 
resonance control. Two bell lters with narrow and wide Q for the mid 
frequencies as well as additional passive LC stages with shielded coils to 
rene the treble frequencies.
We wish you lots of fun with the xlter Mastering Edition in your studio 
and we all know that you will enjoy your new EQ.
Index
Controls .............................................................4
Connectors ..........................................................6
Passive Massage .....................................................7
Low Shelf/Cut ........................................................8
High Shelf/Cut .......................................................9
Low Mid ............................................................10
High Mid  ...........................................................11
Recall Sheet  ........................................................12
Technical Details ....................................................13
CE Conformity ......................................................13 
Warranty Info .......................................................14
Legal Info ...........................................................15
Deutsches Handbuch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16










