ALLEN & HEATH WZ20S User's Guide download pdf (Page 6)

6 WZ20S User Guide

Overview of the MIXWIZARD WZ20S

The WZ20S is a compact audio mixing console with many stereo inputs. It is well suited

to mixing stereo sources such as keyboards, voice modules and effects returns, or for

recording or stage submixing. With its additional mic inputs it is also equipped for low

end broadcast, club installation and production mixing. The WZ20S complements the

MixWizard range which also includes the multi mic input WZ12DX and WZ16DX with built

in effects processors, and the WZ14:4:2+ which is dual function 4 buss live mixer.

The WZ20S has 12 input channel strips. Four mono channels accept any signal, mic or

line, on either jack or XLR. Eight stereo strips feature dual A and B inputs so that one of

two stereo sources can be selected, or they can be mixed together with individual control

of gain. This allows permanent connection of 16 stereo sources. Inputs A are on phono

pin jacks and inputs B on TRS jacks. An optional RIAA card can be fitted to the phono

inputs. The jack inputs are balanced and normalled for use with stereo or mono sources.

An additional two stereo external inputs are available and can be configured as returns to

the mix or as external inputs for monitoring only.

The mono channels provide 4 band EQ with shelving high and low, and two parametric

mid bands. The stereo channels provide 4 band EQ with shelving high and low, and two

fixed frequency mid bands. All equalisers include in/out switching.

The WZ20S provides two independently assignable stereo mix busses MIX1 and MIX2.

Each feeds a pair of balanced XLR outputs together with inserts and metering. In

addition, MIX2 includes a second stereo output on TRS jacks and a summing mono

output on balanced XLR. Mix1 can be assigned to feed MIX2 to provide a stereo

su/jointfilesconvert/365655/bgroup if required. 6 independent aux outputs on TRS jacks include pre/post switching

in groups of two and four. This flexible output scheme satisfies many applications

including dual stereo submixing, stereo and mono broadcast and amplifier feeds,

cleanfeed sends, zone and recording feeds.

A unique combination of monitoring features is provided to satisfy the specific

requirements of live mixing, broadcast and club install. Dedicated headphones and local

monitor outputs include separate level control. A large switch bank lets you select any

output for monitoring, automatically overriden by channel PFL selection. Two

headphones can be connected, one on the top panel, one on the rear, for example in a

presenter/guest situation. The local monitor feeds separate TRS jacks and includes mute

(internally configurable for 20dB dim) and PFL enable facilities. Split PFL can be

selected to keep the output program in the right ear while monitoring the PFL channel in

the left, ideal for broadcast or club booth monitoring. A switch allows instant checking of

the stereo signal for mono compatibility.

In keeping with the rest of the range, the WZ20S offers the QCC (Quick Change

Connector) rotating pod which can be set for 8U high 19” rack or rear connector desktop

operation. 100mm faders and professional build quality using individual channels with

nutted pots and all steel chassis provide solid reliability and easy servicing. The internal

power unit is an efficient switched mode design which allows universal connection to the

most common world wide mains voltages.

The layout is simple and intuitive and includes tamperproof underpanel switches for

configurable functions, important for broadcast and club applications.

There are several internal configuration options to further customise the console for more

specialist applications. These include aux pre/post and mono/stereo links, SYS-LINK

expander output card, RIAA preamp cards, optional switched faders for remote start/stop,

local monitor auto dim from fader or switch, and custom wiring to 25pin D connector.

These options should be configured by competent service or installation personnel. For

further details please contact your ALLEN & HEATH agent.

Finally, in keeping with the ALLEN & HEATH design philosophy, the WZ20S carries

forward the sonic purity of analog MSP (Minimum Signal Path) engineering to ensure the

very best audio performance.

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ALLEN & HEATH WZ20S User's Guide Page 6

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