User manual ELECTRO-VOICE 358 DATASHEET

[. . . ] · Switchable 30-volt phantom power is available at microphone inputs. · Input controls set gain of preamps for optimum noise performance with any input signal. · LED indicator at each input lights if c lipping occurs. · Low-cut filters switchable at each input reduce low-frequency microphone handling and background noise. [. . . ] · Transformer-isolated output with 3-pin XLR-type connector and mic/line levelselect switch. · Headphone output, with separate power amp and level control, can drive any headphones or cue speaker. · Auxiliary input jack is for fifth input or for stacking additional mixers. · Two stacking jacks are for interconnection with additional mixers, and can be modified for insert patching. Connections · All mic/line inputs have female 3-pin XLR-type connectors. · The transformer-isolated outputs have a male 3-pin XLR-type connector and dual binding posts. · The headphone output is a three-conductor 1/4-inch phone jack. · All other connections on the mixer are 358 Rack-Mount Mic/Line Mixer two-conductor 1/4-inch phone jacks. · All stacking and auxiliary inputs are line level. A main power switch shall be located on the front panel. The mixer shall operate on 115or 230-V ac, 50/60 Hz, switchable on the rear panel, and consume less than 12 watts. Eastern Standard Time. 358 Rack-Mount Mic/Line Mixer 2 Architects' and Engineers' Specifications The mixer shall have four transformerless balanced input channels with rear-mounted female 3-pin XLR-type connectors, switch selectable for microphone or line-level sources. Each input shall have the following front-panel controls: LED clip indicator; switchable low-cut filter with 6-dB-per-octave slope at a corner frequency of 100 Hz; and a rotary level control. Each balanced input shall be enhanced with rf protection circuitry. Each main input shall have 30-V dc remote microphone power applied to pins 2 and 3, with a rear-mounted master phantom power switch. There shall be a 1/4-inch phone jack auxiliary input with the signal from this jack provided to the mix bus. Stacking input and output 1/4-inch phone jacks shall be provided for the mix bus. There shall be a single monaural output. Output shall have a front-panel rotary level control and a ten-segment LED peak program meter. Output shall be transformer isolated with two secondary windings. Output connections shall be provided as follows: dual binding posts for a transformer-isolated output; male 3-pin XLR-type connector, switch selectable for a microphone or linelevel transformer-isolated output. A chassis-ground connection shall be provided on a rear-mounted binding post. [. . . ] A headphone level control and a three-conductor 1/4-inch jack shall be provided on the front panel for headphones. The headphones shall monitor the mix bus prior to the output level control. An internal oscillator with a front-panel switch shall provide a 1-kHz sine-wave signal to the mix bus. Sine-wave distortion of the oscillator shall be <1. 5%. [. . . ]