Behringer MX9000 user manual Main equalizer, Aux sends

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3.4 Main equalizer

Fig. 3.3: Main equalizer

The main equalizer can be switched (S10) out of circuit for easy A/B comparisons between EQed and straight signals, or when you know that you don’t want to use desk EQ at all. It is best considered in three sections. First, there are two Baxendall shelving frequency controls for treble and bass, at 12 kHz and 80 Hz respectively (P4 and P9). These are DUPLICATED for the B-channel (P18 and P19), not merely “SPLIT” off from the main EQ. I.e. you can have a full 4-band EQ on the main channel AND a 2-band EQ on B-channel.

Secondly, there are two semi-parametric swept mids, Q fixed at 1, which cover the bands 300 Hz to 20 kHz and 50 Hz to 3 kHz. An unusually broad frequency range is catered for, and there is an enormous 3-plus octave overlap between the two mid bands (P5, P6, P7 and P8). No experienced engineer will complain about that! All four bands offer 15 dB of cut and boost.

Thirdly, there is a steep high pass (low cut) filter (S11), slope @ 12 dB/octave, -3 dB @ 75 Hz, for reducing floor rumble, plosives, woolly bottom end, etc.

3.5 Aux sends

All six aux sends are mono and post EQ. They are switchable PRE/POST fader in two banks (S13 and S16). For aux sends 1 and 2, two dedicated pots (P12 and P13) are used. These can be taken from a point before or after the channel fader, i.e. PRE or POST (S13). Aux sends 3 and 4, and 5 and 6 are serviced by two potentiometers (P14 and P15). The SHIFT button (S15) determines whether buses 3 and 4 or 5 and 6 are addressed. Also, these four sends can be derived from the main mix or MIX-B, depending on SOURCE (S17), and, as before, can be pre or post (S16).

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Contents Eurodesk MX9000 Safety Instructions Detailed Safety InstructionsForeword Table of Content Track Recording with 2 Samplers Manual Eurodesk OverviewPSU Power Supply Unit MeteringINPUT/OUTPUT Channel Input switchingChannel strip Input gain setting Channel input switching architectureMain equalizer Aux sendsRouting and muting Aux sendsChannel RoutingInserts B-channelSubgroup and Direct Outputs SubgroupsStereo subgroup channel schematic Direct outputs Master PanelAux masters Aux sends Stereo aux returns MIX-B master Mix-BMonitoring MonitoringHeadphones PhonesPFL/SOLO TalkbackConnections Rear panelPower supply unit connector Subgroup inserts Main balanced outputs 10 MIX-B operating level switch and phantom power switch Plug soldering guide Page Normalized bay PatchfieldPatchfield Example of patchbay configurations Looming problems Wiring for bay 8 for advanced wiring scheme refer to sectionEqualization Gain Optimization Impedances and Tuning Unbalanced LinesChannel setting up procedure START-UPDesk/tape setting up procedures Track Midi SUITE/DANCE Production Studio Auxless headphones mix SendsSlightly more complicated auxless headphones mix ReturnsMixdown Track Recording with 2 SamplersLining up record/sample inputs RecordingHeadphones Professional 24-TRACK StudioTab .1 Channel assignment Live P.A. with 2-TRACK Recording Very tricky headphonesWet monitoring Tab .1 Channel assignments 2-track Live Concert with 24-TRACK Recording Tab .2 Front/rear/stage monitors routing Connections Expanding the Eurodesk MX9000Timecode AlignmentBouncing Sequencing LiveINPUT/OUTPUT Configuration ModificationsMIX-B source post fader Aux sends post EQLED meters pre fader Specifications DBr ref. +4 dBu, 24 chs. assigned input B & set @ unity gain Warranty § 1 Warranty CARD/ONLINE RegistrationPage
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