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Guided Tour - S83 Rear Panel
5: Amp In - This unbalanced input allows you to connect any external mono-
phonic line-level signal directly to the S83 power amplifier. This input is not
affected by either the ten-band graphic master equalizer or the S83’s Main Level
control. The Amp In jack can optionally also be used as an insert patch point as
follows:
• Ring - A preamp output which is affected by both the ten-band
graphic master equalizer and the S83’s Main Level control.
• Tip - An amp input which is not affected by either the ten-band
graphic master equalizer or the S83’s Main Level control.
For more information about the use of the Amp In jack as an insert patch point,
contact Samson Technical Support (516-932-1062) between 9 AM and 5 PM
EST.
6: Preamp Out - This unbalanced output provides a monophonic line-level
output from the S83 mixer section; it is normally used to connect the unit to an
external power amplifier and speakers where additional power is required or
where additional amplifier feeds are necessary. This output is not affected by
the ten-band graphic master equalizer but it is affected by the S83’s Main Level
control.
7: Monitor Out - This unbalanced output provides a monophonic line-level
output from Effects Send 1, post-Monitor level control (but unaffected by the
Main Level control). It is normally used to connect the unit to an external monitor
mixer/amplifier/speaker system so that the performers can receive an onstage
monitor mix independent of the house mix. See the “Using the Effects Sends
and Returns” section of this manual for more information.
8: Speaker Output - These are the S83’s main outputs; use these unbalanced
jacks to connect the S83 to any speakers rated at 4 ohms or greater (that is, 4,
8, or 16 ohms). The lower the ohm rating, the greater the power output. We
recommend the use of 4 ohm speakers for long-term usage. The S83 delivers
300 watts of power into 4 ohms at less than 1% THD (Total Harmonic Distortion).
In order to ensure correct phase correlation, the tip of the S83 speaker jack
should be connected to the “+” (hot) input of your loudspeaker, and the sleeve
of the S83 speaker jack should be connected to the “-” (ground) input of your
loudspeaker.
9: CD/Tape In - Use these dual RCA input jacks to connect the output from a
CD or tape player to the S83. When connected, the signal is mixed to mono and
appears at Channel 8, at unity gain (the Trim control has no effect). From there,
it can be equalized if necessary and routed to either of the two Effects sends (for
routing to connected external processors, to the internal reverb unit, and/or to
the Monitor output).
10: Heat sink - Make sure this anodized aluminum heat sink is unobstructed
when the S83 is powered on. In particular, we recommend that you keep the
rear of the rack open in order to release heat. If your rack does not have a
removable rear, space should be left open on the front of the rack cabinet, espe-
cially immediately above the S83—remember, heat rises!
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