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Stage Passive Splitter
4 Inputs, 3 Outputs for each channel.
- 4 Channels of 3 way transformer splits in one 1U rack space device
- Balanced XLR Inputs and Outputs
- Ground Lift Switches on each Isolated Output
- Small 1U size
- Good quality transformers for the splits
Applications
This is the EWI MST-412 4 Channel, 3 way, transformer isolated XLR splitter. This is an ideal, rack-mountable splitter for many applications, including:
1) Splitting XLR signals for taking a recording directly off a house mix.
2) Sending mixed signals to multiple amp racks.
3) Splitting XLR signals between house and monitor mixers.
4) Multiple XLR feeds for broadcast.
The MST-412 has some nice features:
1) Durable construction and all is housed in a convenient 1U rack mount unit.
2) Balanced XLR inputs and outputs.
3) Ground lift switches on both of the Isolated Split Outputs.
4) Good quality transformers for the splits.
5) The Direct Outs will pass Phantom Power. The two isolated split outputs do not pass phantom power.
On the front side EACH of the 4 input channels are equipped with a direct output and one isolated output with the ground lift switch next to the isolated output.
On the back side is one more isolated output panel jack and a direct output jack for EACH of the 4 channels plus ground lift switches for each back isolated split. The rear Direct Out jack is in parallel with the front Direct Out jack.
Physical properties are: The width is standard 19” rackmount. The height is 1 U (1 ¾”). The depth is 4” behind the rack ears. There are 4 nice little rubber feet on the bottom to help keep if from sliding around on a slick surface, or marring up something you set it on. Weight is 2.95 lbs. This is a passive device, so no active power is required. The chassis is heavy gauge steel and the front mounting plate is 0.075” extruded aluminum (no plastic here). As well as being durable, the all-metal construction further helps to reduce induced EMI into the unit. The panel jacks are constructed with plastic bodies, and the FXLR input panel jacks are constructed with spiral spring contact points with no locking device other than the solid fit of the spiral spring contacts.
- Make: EWI
- Model: MST-412-A
- Type: Rackmount 4 channel 3 Way Transformer XLR Splitter
- Channels: 4 x 3
- Inputs: 4ea. (1 per channel) 570 ohm balanced XLR
- Outputs: 16ea. (3 per channel) 1 Kohm ohm balanced XLR
- Split Voltage Loss: Less than 2.5dB @ 1KHz
- THD:
| Passive splitter box for microphone signals. One module has 4 channels. Each channel has an input, an output wired in parallel for passthrough of phantom power, and two splitter transformer-isolated outputs. All outputs are also decoupled via resistors.
- Each channel: Input: female XLR type
- Outputs: 1 parallel male XLR type, 2 transformer isolated male XLR type
- Nominal impedance for inputs/outputs: 200
- Max. input level: + 6 dBu
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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)
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Features:
Two channel / four way split
Channels linkable for 1 in, 8 out
Ultra low noise design
?SilentSwitch? Phantom Power switch
?20 dB pad switch
0 to +40 dB Gain available via rear switches
Electronically Balanced Inputs and Outputs (standard)
Transformer Balanced Outputs option
12 VDC supply connector for remote or mobile applications
Intuitive, 'user friendly' layout
Flawless performance in any audio environment
Today?s venues face a growing need to provide a multiplicity of audio feeds
from presentations, conferences, orchestral performances and lectures. The
advent of digital broadcasting, the growth of webcasts and direct-to-CD
archiving highlight the deficiencies in audio splitting systems more than ever
before. Whether the final product is a broadcast feed or CD sales of an unrepeatable
lecture, performance or event, end-users? expectations of audio quality are
higher than ever.With these requirements in mind, ARX has developed the
MSX 8 Active Microphone/Line Splitter to deliver the performance required by
today?s standards of audio production. Active microphone and line splitting has
a number of benefits over passive splitters: primarily these are improved sound
quality, noise figures comparable to the best microphone inputs, and increased
resistance to RFI. All of which translate into superb audio quality for your clients.
About the MSX 8
The MSX 8 consists of two channels of actively buffered ultra low noise Microphone/
Line Splitter. Each of these channels has four electronically Balanced splits ? two
on the rear panel, plus two more on the front panel. All four output 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.Gain through the MSX 8
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 Channel 1 to Channel 2, providing
an ultimate maximum of 8 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.For remote or mobile applications a 5 pin DIN connector on the rear panel
provides an access point to connect a 12V DC power supply
Inside Information
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 1as required.
Internal Power Supply
The MSX 8 has a low noise transformer based power supply to obtain the maximum benefit from
the ultra low noise design of the splitter circuitry.
Summing up, the feature packed MSX 8 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
Gain Switch +20dB gain
Phantom Power +48VDC slow turn on/turn off
Output Impedance 100 Ohms Electronically Balanced
(Optional Transformer balancing available)
Clip LED 1dB before clipping
12 Volt Connector 5 pin DIN
AC Mains Input Fused IEC socket
AC Power 100-120VAC 2 amp, 220-240VAC 1 amp
Transformer Type Low noise toroidal
Size 19?W x 1??H x 6?D, 482 x 44 x 125 mm
Weight 5 lbs (2.2 Kg)
Front Panel
A and B balanced XLR Output splits Channels 1 and 2.
Pin 3?-, Pin 2 +, Pin 1 Ground
48V Phantom Power switch and LED
Channel link switch and LED switch
?20dB pad switch
Numbered marker panel for labelling individual channel
assigns
AC power LED
Rear Panel
Channel Gain DIP switches: 0, +10, +20, +30, +40dB
Balanced XLR Input Channels 1 and 2. Pin 3 ?, Pin 2 +,
Pin 1 Ground
Balanced XLR Main (FOH) Output (same wiring as Input)
Channels 1 and 2
Balanced XLR Monitor Output (same wiring as Input) Channels
1 and 2
12 Volt DC power supply input for remote or mobile applications
IEC 3 pin AC connector and integral fuseholder. Replace fuse with
correct value only: 100?120 V AC 2 amp, 220?240 V AC 1 amp | Practical distributor with 1 input and 6 outputs
- Extends every mixer with additional outputs
- 1 stereo XLR input
- 6 stereo zone outputs (XLR)
- Each zone with level control and mono switch
- LED display of signal input and mono/stereo mode
- Rack installation with 1 U
- (19") 48.3 cm rack installation 1 U
| Power supply: |
230 V AC, 50 Hz |
| Power consumption: |
7 W |
| S/N ratio: |
>69 dB |
| THD: |
<0.2 % at 1 kHz |
| Power connection: |
Mains input IEC connector (M) mounting version Power supply cord with safety plug (provided) |
| Impedance: |
Input 45.1 kOhm
Output 125 Ohm |
| Gain: |
15 dB |
| Max. level: |
Output: +22 dB
Input: +9 dBV |
| Color: |
Silver |
| Housing design: |
(19") 48.3 cm rack installation 1 U |
| Dimension: |
Width: 48.3 cm
Depth: 12.6 cm
Height: 4.45 cm |
| Weight: |
2.15 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. Features: - 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.
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