Allenheath 21 Series Manuel d'utilisateur

Allen & Heath’s newstereo 21 SERIESAllen & Heath proudly unveil their excitingnew range of compact stereo mixers - the21 SERIES. Stylish in lo

7OUTPUT SECTIONa)b)c)d)e)VU METERSThe VU meters can read any one of 4 signal sources:i)ii)iii)iv)PFL: when any PFL button is pressed on the mixer, an

8f) MONO MASTER FADERControls the output level of the mono mix.This mix is a mono sum of the main stereo output, is derivedafter the left/right master

9OPERATIONObjective:To preserve the quality of the original sound.Assisted by:Level controls, gain controls, mixer meters, peak indicators, tapemeters

101)2)The audio amplifier system noise is allowed to be greaterthan the ambient (background) noise of the original sound.Details of the quieter sectio

11clipped signal reading is the overload margin of the system.Goingthe other way:Reset the piano mic 20 feet back.Back at the console reset the contro

12All that has been said about the balance between added noiseand added clipping distortion applies to the other parts ofa console system not just the

13inputs for tape signals are preset to a standard signal level(0VU =+4dBm).There are however three standard signal levelsthat different tape decks ma

14TAPE DECK INTERFACEYour 21 series mixer is supplied with output levels and tape returnlevels set for 0VU on meters = 4dBm.It is a very simple operat

AUDIO QUALITYAdvanced low-noise circuitry boasts a highslew rate of 13 V/uS, permitting faithfulreproduction of transient information. Eachmixer is su

STEREO 21 SERIESOWNER'S HANDBOOK

SPECIFICATION:Construction: steel main panel and covers, hard stove enamel paintfinish with epoxy ink screenprinted legend.Semi-modular electronic pri

2GENERALAll Outputs:Normal Operating Level = +4dBvMaximum Output Level = +2ldBv 20Hz to 20kHzOutput Impedance = 30ohmsall outputs are protected agains

3Channel Inputs:XLR sockets.Electronically balanced suitable for safe connectionof external phantom power supply of up to 48VDC.XLR pin 3 = hotpin 2 =

4Monitor Output:stereo 1/4" jack sockettip = leftring = rightouter = earthNormal Operating Level = +4dBvMaximum Gain = +10dBHeadphones Output:ste

5PANEL CONTROLSInput ChannelPlace the mixer in front of you and familiarise yourself with thevarious functions of the panel controls.Starting at the t

6h) ECHOCan be used in a similar way to the above control, exceptthat it is wired post-fader and the feed to an externaleffects device will reduce as