User Manual: ZPR4620
6+2 Channel Rack Zoning Mixer
V2.00 (04-2013) © Hill Audio
8
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Front Panel
23. Microphone input for MIC1. This is a balanced Combo (XLR+TRS) connector
without phantom power provision, hence only suitable for dynamic
microphones. Please note that MIC2 can only be connected from the rear
panel connector (19).
24. Microphone Equalizer. Allows the adjustment of the tonal balance for the
microphone inputs in three voice-specific frequency bands with an adjustment
range of ±12dB. Please note the setting will affect both microphones inputs
simultaneously.
25. Level control for microphone inputs. Allow the individual adjustments of the
levels for MIC1 and MIC2.
26. On/Off (ON AIR) switch for the respective microphone.
27. Talkover on/off switch. Enables or disables the talkover circuit. Once enabled,
the parameters can be set independently for every output by means of the
rear-panel controls (7/12).
28. AUX Input for INPUT1. This is a 3.5mm Mini-TRS stereo socket which allows
to connect sources like MP3 players etc. without removing the mixer from its
mounting position.
29. Enable/Disable switch for AUX Input (28). Pressing this switch will disable the
LINE1 input on the rear panel and will route the signal of the AUX Input (28) to
INPUT1.
30. Gain control of input channels. Allows adjustment of the input sensitivity to
compensate for different source volumes. To facilitate proper setting of input
gain levels, the stereo inputs INPUT1/2/3/4/5/6 have an additional
SIGNAL/PEAK LED (34)
31. Signal/Peak LED. This LED will illuminate green when an input signal with
more than -30dB of signal level is present, and will turn to orange-red once the
input signal reaches 0dB. This facilitates to see which channels have a signal
present, without using the CUE function. It further helps to set the gain
controls (30) correctly for proper gain balance.
User Manual: ZPR4620
6+2 Channel Rack Zoning Mixer
V2.00 (04-2013) © Hill Audio
9
32. Channel fader for input channels. A high-grade dual rail 45mm fader
determines the volume of the respective channel.
33. CUE switch for stereo channels. Assigns the respective channel to the
headphone bus for pre-fader-listening (CUE) by means of the headphone
output (43). A LED indicates the pressed position.
34. FOH input. This is a ¼’’ TRS balanced stereo input specifically designed to
allow the connection of the output of a stage mixer, in order to use the
connected sound system for the replay of the stage mixer’s signal. This is
useful in applications where apart from stereo source replay also live music is
performed over the same sound system. The FOH input is routed to input
channel 6 and will replace the LINE6 signal once the relative switch (35) is set
to “ON”. This front-panel FOH input is in parallel to the rear-panel FOH input
(16) but has priority over the rear-side input; thus, once a jack is inserted into
the front-side FOH input, the rear-side FOH input (16) is disabled.
35. On/Off switch for FOH input. Enables and disables the FOH input. This switch
applies to both the front-side and rear-side FOH input.
36. Stereo Master output level control. Determines the main output level present
at outputs (2)/(3)/(4).
37. Stereo Master output level meter. Displays the output level of the stereo
master output (2)/(3)/(4). Note that the level limitation applied by means of the
rear-side maximum level control (6) is not displayed on this meter.
38. Mono Zone output level controls for zones A/B/C. Determine the main output
level present at outputs (8)/(9).
39. Mono zone source selection switches for zones A/B/C. These rotary switches
allow to either use the master mix bus [same signal as carried by the stereo
master output (2)/(3)/(4)] or any of the individual, assigned source signals to
the Inputs 1/2/3/4/5/6, to be used as a source signal for the respective zone.
40. Mono Zone output level meters. Display the output levels of the mono zones
A/B/C respectively. Note that the level limitations applied by means of the
rear-side maximum level controls (11) are not displayed on these meters.
41. Mono zone Cue switches. Pressing these switches will assign the respective
zone signal to the headphone bus for pre-fader-listening (CUE) by means of
the headphone output (43).
42. CUE level. Determines the signal volume at the headphone output (43).
Always set this control to minimum before putting on headphones, as sudden
high-volume impact may damage your ears. See further health advice below.
43. Headphones output. A ¼” TRS connector to connect a headphone. Turn the
CUE level (42) down before plugging in any headphones.
44. Power switch. Switches the unit on and off. Make sure to switch the unit off
when not in use.
45. Power LED. Indicates whether the unit is switched on or off.