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.

• 5 Zone mixer / distributor
• Adjusts volume of multiple amplifiers or active monitors separately
• Stereo/mono switch + clip and 5 segment LED on each zone
• Connectors: 4x line in XLR (2x L/R), 10x XLR Out (5x L/R)
• Dimensions: 482 x 152 x 44.5 mm (19"/1U)
• Weight: 2.4 kg

1215 Dual 15-Band Graphic Equalizer

The dbx 12 Series were designed to meet the needs of the most
demanding sound reinforcement environments, while offering the
simplicity of straightforward controls. The 1215 provides standard
features like dual channels, 15 2/3 octave bands, ISO frequency
centers, +/-12 dB input gain range, and switchable 40Hz/18 dB per
octave low-cut filters, but also includes other thoughtful features.
These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut
range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS
connectors for installation ease; balanced inputs and outputs for quiet
operation; and chassis/signal ground lift capabilities for quick hum isolation.
The visionary design of the dbx 12 Series makes your job easier.

The dbx 12 Series Equalizers were precision engineered to provide years
of maintenance-free operation in any application. The magnetically isolated
transformer, electronically balanced/unbalanced inputs and servo balanced/
unbalanced outputs, RF-filtered inputs and outputs, and power-off hard-wire
relay bypass with 2 second power up delay were steps our engineers took
to ensure compatibility for all installations. Only the best components were
utilized, yielding a 10Hz to 50kHz frequency response, greater than 90dB SNR
(ref +4dBu), less than 0.005% THD +Noise (1kHz at +4dBu), and interchannel
crosstalk of less than -80dB from 20Hz to 20kHz. All this attention to detail
is contained in a 2U steel/aluminum chassis.

•   Switchable boost/cut ranges of ±6 or ±15 dB
•   Electronically balanced/unbalanced inputs
•   Servo balanced/unbalanced inputs
•   RF filtered inputs and outputs
•  XLR, Barrier Strip, and 1/4" TRS connectors
•  -12dB/+12dB input gain range
•  18dB/octave 40Hz Bessel low-cut filter
•  Chassis/signal ground lift capability
•  Internal power supply transformer
•  Power-off hardwire relay bypass with 2-second power-up delay

• With improved 192 kHz sample rate for the best sound reproduction.
• Supports uncompressed 2-channel LPCM (Linear Pulse Code Modulation) audio signals.
• Supports compressed 2-channel and multi-channel Dolby Digital and DTS audio signals.
• Ideal for presentation or distribution to another room.
• The optical (Toslink) digital audio splitter can split a single optical digital input to four outputs without delay or loss of quality.
• Supports the S/PDIF and Toslink standard.

• Connect 2 TVs or projectors and switch between 4 connected HDMI devices.
• HDMI matrix switch allows you to watch other HDMI devices on 2 screens independently.
• Use the built-in 1080p downscaler in case 1 or more screens do not support 4K resolution.
• Suitable for the latest Ultra HD 4K60 resolution (3840 x 2160/60 Hz), High Dynamic Range (HDR), Deep Color and 4:4:4 chroma colours.
• Supports Dolby Atmos and DTS:X and all other common audio formats.
• With additional digital audio output to also connect your AV receiver using a single cable.
• Supports Audio Return Channel (ARC) to avoid lip-sync problems.
• Switches automatically and/or with remote control.

Features:
Eight channel / four way split per channel
Channels linkable up to 1 in, 32 out
Ultra low noise design
'SilentSwitch' Phantom Power switching
?20 dB pad switch
0 to +40 dB Gain available via rear switches
Headphone monitoring and PFL metering
Electronically Balanced Inputs and Outputs (standard)
Transformer balanced Outputs option
Intuitive, 'user friendly' layout
Flawless audio performance

EC-2
Superb Audio Quality
Active microphone and line signal splitting has a number of benefits over
using passive splitters: primarily these are improved sound quality, noise
figures comparable to the best microphone inputs, and increased resistance
to RFI.
About the MSX 32
With these benefits in mind, the ARX MSX 32 Active Microphone/Line Splitter
has been developed to deliver the performance required by the increasing
complexity of today?s standards of audio production.
The MSX 32 consists of eight channels of actively buffered ultra low noise
Microphone/Line Splitter. Each of these channels has four electronically Balanced
splits ? two outputs on the rear panel for Main and Monitor, plus two more output
splits on the front panel. All splits have the option of transformer balancing if so
specified.Each channel has a ?20 dB pad switch plus silently switchable 48V
Phantom power with indicator LED. A PFL switch and 6 LED metering enables
each channel to be easily checked with headphones for signal monitoring, and
also for line tracing when troubleshooting. Gain through the MSX 32 can be set
individually by the small DIP switches on the rear of each channel, from 0dB
through to +40 dB in 10 dB stepsA ?Link? switch links each channel to the previous
one, providing an ultimate maximum of 32 Outputs from a single input. An indicator
LED shows when this is active. A Clip LED indicates imminent signal overload
through the channel, and a numbered marker panel on the front provides a space
where individual channel connections can be noted.
Number stickers are provided to give each channel an individual number for up to
40 channels when multiple MSX32s are being used.Internally, powerful RF input
filtering removes both common mode and differential interference at ultrasonic frequencies
and above. High CMRR is achieved by the use of precision components throughout.
Advanced user options include internally jumper linking Inputs to Main outputs, and
Ground lifting Output Pins 1 as required.
Internal Power Supply
The MSX 32?s internal toroidal transformer based power supply is triple shielded to
get the maximum benefit from the ultra low noise design of the splitter circuitry.
An illuminated power switch on the front panel provides visual confirmation of AC
power connection to the unit.The headphone output and the 6 LED PFL metering
are both mounted on the right hand side of the front panel. Rear panel connectors
enable this function to be linked when using multiple MSX 32 units.
To sum up, this feature packed two RU device is the answer wherever transparent
signal buffering and routing is required.

T E C H N I C A L  S P E C I F I C A T I O N S
Signal / Noise Ratio -94dB
Distortion .008% 20Hz - 20KHz
Gain through unit Switchable 0, +10, +20, +30, +40 dB
Maximum Output +24dB
Pad Switch ?20dB attenuation
Phantom Power +48VDC slow turn on/turn off
Output Impedance 100 Ohms Electronically Balanced
(Optional Transformer balancing available)
Clip LED 1dB before clipping
Headphone Output 2 watts/8 ohms
AC Mains Input Fused IEC socket
AC Power 100-120V AC 2 amp 220-240V AC 1 amp
Transformer Type Low noise shielded toroidal
Size 2 RU - 19?W x 3½?H x 8?D, 482 x 89 x 200 mm
Weight E model - 15 lbs (7 Kg)