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Resumen del manual
The Fader is accurately calibrated in dB of attenudation relative to maximum level. Setting at 5dB ( ■ ) providesa nominal level when a signal is fed at the same level as the level switch. Setting the control near the dot offers the best S/N ratio. 0 EQUALIZER О о © Two controls alter the frequency response of the channel input, allowing you to achieve a variety of tonal characteristics. The LOW and HIGH controls provide ±15dB of continuously variable shelving equalization at 100Hz and 10KHz respectively. Centering the controls provides flat audio response by defeating the equalization. Both controls are calibrated in dB of boost and cut. @ MONITOR 2 VOLUME This rotary control assigns the posi-equalizer, prefader signal to the MONITOR 2 mixing bus. The MONITOR 2 mix is useful for headphone cue mixing, or wherever independence from the program mix is desired. The MONITOR 2 mix also provides a means to make monaural tape recordings that are independent of program mixing variations. Stage monitors often are driven by MONITOR 2 so that program mix changes will not distract the performers. O MONITOR 1 VOLUME The rotary control assigns the post-equalizer, postfader signal to the MONITOR 1 mixing bus. Used for monitoring when changes in the balance of the program mix must be heard in the monitor mix, MONITOR 1 also can be used to drive echo or reverb units. 0 PAN POT This rotary control assigns the equalized, post-fader output of the channel to the stereo PROGRAM mixing buses. Centering the PAN pot places the signal equally in the left and right mix buses; panning to one side or the other gradually assigns the input signal to either the left or right program mix exclusively. © INPUT LEVEL SWITCH This switch changes the input attenuation to accommodate nominal levels of —50, —40 or —20dBm. These sensitivities correspond to low-output dynamic microphones, medium-output condenser microphones, electric instrument preamps or lines, and low-level (hi-fi) line sources. When properly set, the Input level switch provides the best combination of maximum headroom and minimum noise characteristics; at the same time, it maintains the fullest range of fader travel. The Output Section 0 MASTER PROGRAM FADERS The same type of Yamaha dB calibrated Faders used on the input channels also set the overall level of the stereo mix which is fed to the PROGRAM outputs. © PROGRAM EQUALIZERS A pair of HIGH and LOW controls is associated with the left and right MASTER PROGRAM channels. Individual microphone and instrument tonal characteristics can be enhanced with the CHANNEL EQ, and the PROGRAM EQ then contour the overall mix. © MONITOR MASTER FADERS These also are the same Yamaha dB calibrated Faders used elsewhere in the PM-430. These Faders set the overall level of the mixes which feed the MONITOR 1, MONITOR 2 and TO ECHO outputs. (TO ECHO is the same mix as MONITOR 1.) ® AUXILIARY INPUT VOLUME This rotary control attenuates the incoming AUX IN 4 r. REAR PANEL c signal. AUX IN Volume permits the AUX IN signal to be balanced with the level on the PROGRAM mix buses. ® AUXILIARY INPUT PAN POT This rotary control assigns the AUX IN signal to the stereo PROGRAM mixing buses. The panning is the same as the input channel PAN pots. © HEADPHONE SELECT SWITCH This 3-position slide switch selects the program fed to the Headphone output. PGM position derives signal from the left and right PROGRAM mix buses, so the headphones carry a stereo program. M1 and M2 positions derive signal from the MONITOR 1 or 2 mixing bus, so the headphones carry a monaural program when either of these positions is selected. In all cases, the headphone feed is pre-MASTER Fader, making the phones volume independent of the MONITOR or PROGRAM outputs. © PHONES VOLUME This 2-gang rotary control sets the volume in the headphone output, assuring adequate monitoring regardless of mixing levels or loud environments. © HEADPHONE OUTPUT JACK This stereo phone jack is for connection of any stereo headphones of 8 ohm or higher impedance. The phones jack may be used to monitor any of the sources chosen with the Headphone Select switch.