Behringer SNR2000 - Manual (Page 23)

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DENOISER SNR2000
4.7 The “single-ended” principle
In contrast to conventional noise reduction systems using compressors and expanders, the DENOISER is
purely a “single-ended” system. “Single-ended” means that the noise reduction system is not based on a
process combining both record and playback (encoding and decoding), but is simply inserted into the
signal chain after the signal that is going to benefit from noise reduction. The noise reduction capabilities
of the BEHRINGER DENOISER are based on bandwidth limiting by means of a dynamic low-pass filter and
broadband noise reduction during music pauses by a “downward” expander.
Thus, the DENOISER can be used for any program source, since it processes during playback. Due to this
outstanding feature, virtually any noise can be removed!
5. INSTALLATION
5.1 Rack mounting
The BEHRINGER DENOISER fits into one standard 19" rack unit (1 3/4"). Please allow at least an additional
4" depth for the connectors on the back panel.
Be sure that there is enough space around the unit for cooling and please do not place the DENOISER on
high temperature devices such as power amplifiers etc. to avoid overheating.
5.2 Audio connections
As a standard, the BEHRINGER DENOISER is installed with electronically servo-balanced inputs and outputs.
The circuit design features automatic hum rejection for balanced signals, permitting trouble-free operation
even at highest operating levels. Externally induced power-line hum, etc. is thus suppressed effectively. The
automatic servo function recognizes the presence of unbalanced connectors and adjusts the nominal level
internally to avoid level differences between the input and output signals (6 dB correction).
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Please ensure that only qualified persons install and operate the DENOISER. During installation
and operation the user must have sufficient electrical contact to earth. Electrostatic charges
might affect the operation of the DENOISER!
5. INSTALLATION