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3.4 Audio Connections
Analog Inputs
8 x combo (XLR & TS) input connectors can be found on the front panel. These are the direct ana-
log inputs to the EP84's 8 individual preamplifier modules. Input your audio source material via
either XLR or ¼" TS cable connectors.
Analog outputs
Both balanced +4dB XLR and unbalanced -10dB ¼" TS analog output connectors are provided for
each of the eight (8) preamplifier channels. Individual output levels can be controlled via the asso-
ciated channels rotary gain control encoder on the front panel.
Insert Points
Each channel of the EP84 features a ¼" TRS insert connector. Typically, inserts are useful when
integrating additional outboard equipment (noise gates, expanders, compressors, etc.) in-line with
your audio source material. By using a stereo 1/4" TRS audio insert cable you can insert external
devices directly into the signal path of any of the eight audio channels.
4. FRONT PANEL CONTROLS & INDICATORS
4.1 Independent (8x) rotary preamplifier gain controls
Each channel features a rotary gain control for variable adjustment of the desired
pre-amplifier level. 60dB of variable gain is available per channel. Clockwise rota-
tion increases the gain, whereas anti-clockwise rotation decreases the gain.
* Always begin using the EP84 with all gain controls set to the minimum value.
This way you can increase each channel gain gradually to the desired level with-
out experiencing possible unwanted and unexpected loud signal surprises to both
you and the rest of your audio equipment!
4.2 Independent (8x) -20dB PAD switches
A -20dB PAD switch is provided for each channel to allow a twenty (20) decibel gain reduction of the
incoming signal if desired/required. When enabled the corresponding -20dB PAD LED will illuminate.
* This function is useful when connecting extremely "hot" signals. Excessive signal input levels can
overdrive the EP84's pre-amplifier input stage resulting in unwanted signal distortion. The PAD
switch allows -20dB of gain attenuation/reduction to compensate for this situation prior to finer pre-
amplifier gain adjustment.
4.3 Independent (8x) phantom power +48v switches
Each channel of the EP84 features a phantom power switch to facilitate enabling or disabling of
48v of continuous power supply to the channel. When enabled the corresponding phantom power
LED will illuminate.
7
Installation - Front Panel Controls
EP84 rear panel
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