PLEXUS : 4
PLEXUS : 4
All-in-One MIDI Router, MIDI Hub, MIDI Splitter, MIDI Merger, MIDI Filter & MIDI Clock Divider with DIN, USB Host and USB Device ports. No Computer Required.
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A Routing and Filtering Powerhouse
Built to perform and easy to use, PLEXUS:4 makes selective connections between MIDI DIN, USB Host and USB Devices, and places those selections right at your fingertips. A variety of Filters and Poly Chain features can be configured without the use of a computer, and each setting can be stored and recalled from 128 Presets. Housed in an aluminum enclosure and built strong for demanding environments.

Easy I/O Routing
Simple 4x4 Input and Output button matrix. Press a button so that it lights up and the adjoining connection is instantly made.

USB Host
Connect a class-compliant USB MIDI device directly, or use a powered USB Hub for connecting up to 8 USB devices. Share MIDI between USB and DIN hardware without the need of a computer.

Filter Engine for Each Output
Enable Filters that can block and modify MIDI Messages on each output independently. Create Keyboard Zones, Divide BPM, Map Channels and more.

Polychain Notes from Each Input
Round-robin notes from 1 keyboard to several monophonic and polyphonic synths and play them all together as 1 big polyphonic synth.
Features
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Intuitive Routing UI
Split and Merge each input with each output using the 4x4 Matrix of lighted buttons. Gives a clear indication of what messages are going where.
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3x3 MIDI DIN I/O
3 opto-coupled MIDI DIN Inputs and 3 MIDI DIN Outputs provide connections to the massive amount of MIDI DIN compatible gear on the market.
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1x USB Host Connector
Connect class-compliant USB MIDI devices to the USB Host port without the need for a computer. Up to 8 USB Devices are supported with the use of a USB Hub.
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1x USB Device Connector
Connect to a computer using the class-compliant USB MIDI Device port. Creates a new 1x1 MIDI USB Interface in software applications.
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Connection Bridge
Pass MIDI messages between DIN, USB Host and USB Device connections. PLEXUS:4 is a MIDI connection problem solver.
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4x Filter Engine
Block and modify MIDI Messages on each of the 4 outputs independently. Can be used like 4 stand-alone filter boxes. No computer is required to configure or manage filters.
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Power Connector + Switch
Dedicated Barrel-style connector for 9v power plus a power switch for added convenience. Plenty of juice for itself and for powering another device connected to the USB Host port.
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32-bit Processing
Blazing fast processing of signals with a best-in-class latency of just slightly above 1 ms, regardless of how many filters or routes are added.
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Status Monitoring
Buttons on the 4x4 Matrix will light different colors indicating when a message is being passed, modified or blocked.
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Presets
128 Presets can store every Route and Filter setting for instant recall. 16 Presets can be recalled using the UI and all 128 can be recalled over MIDI.
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Keyboard Splitting
Send notes to different synths based on the pitch or the velocity of the note played. Easily divide any keyboard into performance enhancing zones.
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Poly Chaining
Incoming notes can be distributed, round-robin, to different outputs. Play several monophonic synths as one polyphonic synth.
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Clock Division
Divide an incoming MIDI Clock to create slower tempos. Seven division settings are available for each output independently.
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Poly Channel
Incoming notes on a MIDI Channel can be distributed, round robin, between several MIDI Channels for another type of mono/poly setup using only 1 input and 1 output.
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Remote Control
MIDI Commands can be used to control features and settings remotely, including message routing, filtering, poly chaining and preset loading.
Filter Types (per Output)
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By Channel
Block any of the 16 MIDI Channels. This is the highest priority Filter. If a MIDI Channel is being blocked, then no messages received on that Channel will make it into any other Filters or to the selected Output.
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Channel Map
Map any of the 16 MIDI Channels to any other MIDI Channel. Messages will be mapped to their new Channel before any other Filtering takes place.
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Convert
Transform messages on a channel between Note, CC and PC data types, or block one of those data types completely.
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Clock
Remove all MIDI Clock data.
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Clock Divide
Slow the BPM of incoming clock data.
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Transport
Block all Transport messages. Transport messages consist of MIDI Start, Stop, Continue & Song Position.
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Note High & Low
Block Notes that are below and above a set threshold on a specific MIDI Channel. Up to four (4) Channels can be set for blocking on each output.
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Velocity High & Low
Block Notes based on their Velocity that are below and above a set threshold on a specific MIDI Channel. Up to four (4) Channels can be set for blocking on each output.
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Note Transpose
Transpose Notes on a MIDI Channel up or down in halftone increments.
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Poly Channel
Distribute notes in round-robin from 1 MIDI Channel to several others MIDI Channels.
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Pitch
Block Pitch Bend messages on specific MIDI Channels.
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After Touch
Block all After Touch data by MIDI Channel. After Touch messages consist of Poly Key Pressure and Channel Pressure.
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System Exclusive
Block System Exclusive messages on specific MIDI Channels.
- Power Requirements: 9 volts DC max, 200mA min
- Power Connection: 2.1 mm barrel, center negative
- I/O: 3x MIDI DIN IN, 3x MIDI DIN OUT, 1x USB Type A, 1x USB Type B
- Dimensions: 3.62" x 3.62" x 2.28"
- Assembled in the USA
I watched all tutorials of it and was a bit hesitant if it would be so easy to work it on the fly without a computer as I wished. The reason for getting this is that I wanted something that I wouldn't have to prep on a computer.
To my surprise after getting into it and using it the UI quickly made sense and it sorted out the issues of my current setup and also added some possibilities to it.
The build quality is sturdy, customer service splendid and overall happy with my purchase.
My usage for this is for live shows. I have a polysynth which I want to use along with some modules. Playing several roles in the band I need to divide my keyboard to many different sounds and this helped where my polysynth wasn't able. Playing live also means transporting all gear and this unit saved me from needing to add yet another keyboard to lug around.
On some songs I play drums as well as keys, and the transpose function helped me even add a melody on top of the bass I play while my other hand is occupied with the drums. And all of that I could fogure out in the rehearsal space without a computer.
Sure, other similar devices could probably do even more advanced stuff but then that needs to be prepped on a computer. I dont use a computer live so the Plexus still wins as the best tool for the stage for me.
Amazing
nice and compact.
perfect fit for a box driven studio
thx
This device can solve most any midi routing or filtering problem and recalls its settings like patches by receiving program change messages . I am using it in my live rig and in the studio. This device has been needed since midi began. The alternatives to this are not even in the ballpark for price and functionality. Thank you JMK
If you are having a lot of midi issues with a mess of cables this is a great compact solution unlike any other on the market. Well worth the value and quick customer support