Omnitronic A-2700 Mode D'emploi page 24

If racks are to be transported or used for mobile use, additionally fasten the devices by connecting the rear
brackets with the side or ground bars of the rack. In this way, the amplifier cannot be pushed backwards.
The front panel alone is not designed to absorb acceleration forces occuring during transportation.
Inputs
A good cable run improves the sound quality remarkably. Input cables should be short and direct, since high
frequencies will mostly be absorbed if the cables are unnecessarily long. Besides that a longer cable may
lead to humming and noise trouble. If long cable runs are unavoidable, you should use balanced cables.
Professionals recommend to connect the input-cables via balanced XLR-jacks.
Occupation balanced XLR-connection:
Input
Occupation jack plug:
Unbalanced use of
mono 1/4" jack plugs
Tip =
Signal (+)
Sleeve =
Ground / Shield
Tip
Sleeve
Strain relief clamp
Outputs
The high damping factor of your amplifier supplies a clear sound reproduction. Unnecessarily long and thin
cables will influence the damping factor and thus the low frequencies in a negative way. In order to
safeguard good sound quality, the damping factor should lie around 50. The longer a cable has to be, the
thicker it should be.
Connect your speaker-systems via the Speaker-plugs or the Banana/screw combination (occupation red +,
black -).
Balanced use with XLR connectors
2 1
1 = Ground / Shield
2 = Hot (+)
3 = Cold (-)
3
For unbalanced use pin 1 and pin 3 have to be bridged
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1 2
3
Balanced use of
stereo 1/4" jack plugs
Tip =
hot (+)
Ring =
cold (-)
Sleeve =
Ground / Shield
Tip
Ring
Sleeve
Strain relief clamp
For connection of balanced and
unbalanced plugs, ring and sleeve have
to be bridged at the stereo plug.
Output
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