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INPUT CHANNELS
This section describes the many features found on the input channels. The RQ Series mixer you
have purchased utilizes multiple channel configurations. Some channels do differ from others. It is
important that you recognize these differences in order to take advantage of each channel’s features
and avoid confusion.
Channel Functions 1 — 6 (RQ 2310), 1 — 10 (RQ 2314) and 1 — 14 (RQ 2318):
37. MIC INPUT:
XLR balanced low impedance channel input optimized for a microphone
or other low impedance source. Pin 2 is the positive input. Because of
the wide range of gain adjustment, signal levels up to +10 dBu
can be accommodated.
38. LINE INPUT:
1/4" balanced (TRS) high impedance input for high level signals. The tip
is the positive input, which should also be used for unbalanced inputs.
This input is connected through a 20 dB pad to the MIC input
(37). The two inputs cannot be used simultaneously.
39. INSERT: Channels 1 — 4 (RQ 2310), 1 — 8 (RQ 2314) and 1 — 12 (RQ 2318)
1/4" stereo (TRS) jack which allows an external device to be inserted into the
signal path before the tone equalization. The tip carries the send signal; the ring is
the return input. A switch in the jack normally connects the send to the return until
a plug is inserted. When plugged in partway (first click), the jack can be used as a
pre-amp output without interrupting the channel.
40. GAIN:
Varies the input gain to allow for a wide dynamic range. It affects both the Line
and Mic inputs (Channels 1 — 6). Proper adjustment of the input gain will
maximize the signal-to-noise ratio. It should be set by depressing the PFL switch
(53) and adjusting it for a 0 dBu level at the L-R meters. At this point there is
22 dB of headroom remaining.
41. HI EQ:
A shelving type of active tone control that varies the treble frequency levels
+/-15 dB at 10 kHz. It is designed to remove noise or to add brilliance to the
signal, depending on the quality of the source.
42. MID EQ:
A bandpass (peak/notch) type of active tone control that varies the midrange
frequency levels +/-15 dB. On the first six channels of the RQ 2310 (first 10
channels - RQ2314, first 14 channels - RQ2318), the frequency of the boost or cut
is set by the Mid Frequency control (43). The other channels have a fixed
frequency of 850 Hz.
43. FREQUENCY (Not found on Stereo Mic Channels):
Sets the frequency affected by the Mid control (42). The range is 200 Hz to
6000 Hz.
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40
41
42
43
44
45
46
47
48
49
50
51
53
54
52
39
38
37