WORK WD 421 Audio Splitter 2 in & 2 out

Signal distributor. 1 stereo input / 4 stereo outputs or 1 mono input / 8 mono outputs

This audio distributor is very useful to supply several audio devices with only one audio source. Its 2 operating modes allow to work with mono or stereo signals. Output level can be controlled independently.

WD 421 adapts itself to work with different impedances, ensuring that output signal level is at least equal to input signal level. It avoids any undesired attenuation and features a LED vumeter to visualize the input signal level.

Audio signal distributor with 2 inputs and 8 outputs.
Two operating modes:
1 stereo input with 4 stereo outputs.
1 mono input with 8 mono outputs.
Adjusting Output level.
Balanced LINK output for interconnecting several units.
Individual gain control of each channel

Inputs: 2 x XLR3 female balanced.
Outputs: 8 x XLR3 male balanced.
Input sensitivity: 0 dBu.
Max. level input: 22 dBu.
Input impedance: 10 kohm.
Level range: ? to - 12dBu.
Frequency response: 20 Hz to 22 kHz.
Distortion: 110 dBu.
Noise and hum: < - 80 dB @ 20 Hz - 22 kHz.
Crosstalk: < - 80 dB @ 20 Hz - 22 kHz.
Output impedance: 120ohm.
Main supply: 110 - 120 V / 220 - 240 V 50/60 Hz.
Power consumption: 20 W.
Dimensions (WxHxD): 483 x 44 x 220 mm.
Weight: 2.75 kg.

The distribution of mono and stereo balanced audio signals from a single source to multiple destinations has many applications including multi-zone sound reinforcement installations, live sports events coverage, broadcast studios, video suites, duplication or indeed anywhere high quality audio has to be distributed to a number of locations down long cable runs.

The Drawmer DA-6 is a six channel stereo (or twelve channel mono) distribution amplifier featuring XLR balanced inputs and outputs with optional transformer balancing where remote amplifiers and recorders are fed from separate power supplies.

The stereo Input features individual left/right level controls with LED bargraph metering enabling the correct balancing of stereo material or two mono signals. Each of the six outputs incorporate further left/right level controls and a Mono/Stereo switch providing the selection of either one stereo output or two mono outputs per channel. This feature allows the DA-6 to function as either a 1 x stereo input/6 x stereo outputs or 1 x mono input/12 x mono output unit or any combination of the two.

The output section consists of a Channel Select so that the individual left/right output level of each channel is displayed on the output LED bargraph and can be monitored by the Headphone jack socket. A pair of auxiliary link stereo jack sockets (TRS) are provided via the rear panel for connection to further DA-6 units for the distribution of even more channels.

• 1x6 Stereo Distribution Amp with Monitoring.
• 1 set of stereo (2) XLR inputs.
• 6 sets of stereo (2) XLR outputs.
• Input stage has LED level meter.
• Each output channel can be switched to mono.
• Each output channel can be individually monitored.
• Built-in headphone amp.
• Optional transformer balanced outputs.
• Electronically balanced inputs with individual left/right level controls.
• LED metering on input for balancing stereo material or two mono signals.
• Left / Right level controls on each output with a stereo / mono switch.
• Headphone jack to monitor output of selected channel.
• LED metering on output of selected channel.
• Auxiliary pair of balanced 1/4" output jacks for linking multiple DA6 units.
• 1 unit rack space.
• Inputs and Outputs are balanced XLRs at +4dBu.

A 4-channel modular passive Line level splitter system. Each module of the PRM-LS has 4 channels, comprising of one XLR input, one parallel XLR output and 2-balanced XLR transformer isolated outputs.

About the DI6s
It's a fact of audio life that a lot of equipment that has to be connected to
professional audio systems isn't impedance or level compatible.
Interfaces Unlimited
Tape/cassette/DVD/CD decks, audio for video, drum machines, synthesizers,
bass guitars, computers; at some stage all these need linking up to Balanced
inputs, whether the application is Live sound, Studio or Broadcast.
To solve these problems, we've developed the DI-6s:

Six active D.I. (Direct Injection) boxes,
plus a 6 into 1 Line Mixer,
plus a 1 to 6 Splitter,
All of this in a compact, all steel 1 RU package.

A Pro Audio Toolbox
This unique and flexible audio toolbox allows Six independent unbalanced
audio sources to easily and quietly interface with Balanced pro audio systems,
either to individual channels or summed down to one Master output.
But that's not all. By pressing a single switch on the rear panel the DI6s will
change from being Direct Boxes and a Mixer to being a 6 way Splitter (line
distribution amplifier). Now it will split an incoming signal to 6 individual outputs
or zones.
On the front panel, each channel has 2 IN/OUT jacks, a level control from infinity
(off) through 0dB to +15dB gain, and a Clip indicator LED.The Master section has
a Master volume control and status LEDs indicating whether the unit is in DI or
Splitter mode. In addition, as on all ARX single rack unit equipment, each channel
has a numbered marker panel ('scribble strip') you can write on for easy confirmation
of channel assigns.
Balanced Outputs
On the rear, each channel has an XLR Balanced output, with associated Ground lift
switch and status LED, to isolate the chassis and electronic grounds.
The Master section has both Balanced XLR and Unbalanced Jack outputs. In addition
there is a Balanced XLR input with a switch to put the unit in either DI or Splitter mode.
Universal AC Power
AC power range is a universal 100 to 120V or 220 to 240V AC, and is connected to the
unit via a removable power lead and standard 3 pin IEC connector, with built-in fuse and
voltage change switch.
With so many handy functions, plus a true 'user friendly' layout, it's no wonder people call
the DI-6s 'A total Audio Patching System in 1 RU!'
You'll never compromise on Quality when you choose ARX

Features
Unique Pro Audio problem solver
Six Direct boxes, Splitter and Line Mixer in one unit
Multi mode unit: Six in, Six out; Six in, One out; One in, Six out
Individual Output Ground lift switches
Up to +15dB Gain available per channel
Balanced XLR Outputs; High Impedance Jack Ins and Outs
Flawless performance in any audio environment

T E C H N I C A L S P E C I F I C A T I O N S

Channels 1 - 6
High Z Input Impedance 2.2 Meg Ohm
Max Channel Gain 15dB
Clip LED Illuminates 1dB prior to clip
Direct Output Impedance 300 ohms Balanced
Max Input Level +20dB
Max Output Level +21dB
Signal to Noise -96dB(unity gain)
Frequency Response 20Hz to 20KHz, ±0.5dB
Distortion < 0.004%, 1KHz, +4dB
Output Connector 3 pin XLR
Master Section
Output Impedance 300 Ohms Balanced
Max Output Level +21dB
Signal to Noise -90dB (unity gain)
Frequency Response 10Hz to 20KHz, ±0.5dB
Distortion < 0.004%, 1KHz, +4dB
Output Connector 3 pin XLR
Splitter Section
Maximum Level + 20dB
Input Impedance 20 KOhms, Balanced
Input Connector XLR
Frequency Response 10Hz?20KHz ±0.5dB
AC Power 100-120, 220-240 V AC, 8 VA
Size 19?W x 6?D x 1??H, 482 x 155 x 44mm
Weight 2.2 Kg (5 lbs)

Front Panel Controls
Hi Impedance (Hi Z) insulated jack Input and Output
connectors
Level control with up to +15dB of Gain available
Clip LED indicator
Marker panels for labelling DI assigns
Master Level controls
Rear Panel
Balanced XLR Outputs
Individual Audio Ground Lift switches and status LEDs
XLR and jack Master Outputs
XLR Input for splitter
Splitter/DI + Mixer mode switch
AC input connector, with voltage switch and fuse. 

• XLR balanced ins and outs
• Mode switch for stereo 2-way or mono 3-way operation
• Low frequency summed (subwoofer) output
• x10 range switch on both channels
• 40Hz high pass (low cut) filter both channels
• Phase reverse switch on all outputs
• Individual level controls on all outputs
• 24dB per octave Linkwitz-Riley filters (the professional standard)
• Stereo/Mono status LEDs indicate the selected mode
• dbx® 2 year parts and labor as standard
• CSA NRTL/C approved
• CE compliant

• 2 channel line splitter "1 into 3"
• Each channel with: Input: female XLR type with parallel male XLR Type output 2 transformer isolated male XLR type outputs
• Transformer ratio 1 : 1
•  Nominal level: 0 dB
• Max. level +20 dB
• Nominal impedance input and output: 600 ohms
• Ground lift switch