Selecting An Audio Source Appropriate For Hearing Impaired Listeners; Connecting To Other Devices - Williams Sound WaveCAST EIGHT User Manual

Improper Wiring (See no circle): If the left and right positive leads from the source were connected to the + and - pins on the
Phoenix style connector, and their grounds (shields) were connected to the ground terminal, the result would be the difference
of the left and right channels. The main part of the audio signal (what is common to both the left and right channels) would be
missing, as this is thrown away during differential amplification. The difference is very little, resulting in a very low input signal. In
this case, most of the original audio would not be heard.
3.5mm
RCA

Selecting an Audio Source Appropriate for Hearing Impaired Listeners

The WaveCAST EIGHT transmits audio with excellent fidelity. Therefore, the audio source signal should be of the highest audio
quality and not subject to a compressor, limiter, reverberation, or other signal processing equipment. While compressed audio
is available through the WaveCAST EIGHT, excessive compression is not helpful to the hearing impaired and can contribute to
excessive noise in the audio.
The WaveCAST EIGHT audio source signal is usually connected to a mixer's line output signal which is behind the mixer's
parametric equalizers but ahead of any equalization used for house loudspeakers.

Connecting to other Devices

Each Phoenix-style connector on the back of the device can be connected to an audio source. Each connector will broadcast on
its own channel.
L+
white
L-
shields
R-
(shields)
red
R+
R+ L+
L- R-
Not
Used
L+
Yes
white
L-
shield
1/16 Watt
shield
Resistors
Only for
R-
Summing
red
R+
Stereo to Mono
Improper and Proper Wiring
L+
R+
L-
R-
1k
No
(shields)
L+
L- R-
R+
WaveCAST EIGHT
(shields)
17