Skip to product information
1 of 3

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.

Regular price $199.00 USD
Regular price $219.00 USD Sale price $199.00 USD
Sale Sold out
Power Adapter
View full details

A Routing and Filtering Powerhouse

Built to perform with 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • Connection Bridge

    Pass MIDI messages between DIN, USB Host and USB Device connections. PLEXUS:4 is a MIDI connection problem solver.

  • 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.

  • 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.

  • 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.

  • Status Monitoring

    Buttons on the 4x4 Matrix will light different colors indicating when a message is being passed, modified or blocked.

  • 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.

  • 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.

  • Poly Chaining

    Incoming notes can be distributed, round-robin, to different outputs. Play several monophonic synths as one polyphonic synth.

  • Clock Division

    Divide an incoming MIDI Clock to create slower tempos. Seven division settings are available for each output independently.

  • 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.

  • Remote Control

    MIDI Commands can be used to control features and settings remotely, including message routing, filtering, poly chaining and preset loading.

  • 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.

  • 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.

  • Convert

    Transform messages on a channel between Note, CC and PC data types, or block one of those data types completely.

  • Clock

    Remove all MIDI Clock data.

  • Clock Divide

    Slow the BPM of incoming clock data.

  • Transport

    Block all Transport messages. Transport messages consist of MIDI Start, Stop, Continue & Song Position.

  • 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.

  • 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.

  • Note Transpose

    Transpose Notes on a MIDI Channel up or down in halftone increments.

  • Poly Channel

    Distribute notes in round-robin from 1 MIDI Channel to several others MIDI Channels.

  • Pitch

    Block Pitch Bend messages on specific MIDI Channels.

  • After Touch

    Block all After Touch data by MIDI Channel. After Touch messages consist of Poly Key Pressure and Channel Pressure.

  • 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

Customer Reviews

Based on 5 reviews
100%
(5)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
D
Delta3
Essential Midi Utility

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

C
Carlos Figueroa
Excellent MIDIA Utility

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

A
Anonymous
A fantastic little box!

I have a bedroom studio with very limited space and mainly needed something small that I could use to route MIDI back and forth between a couple of synths and grooveboxes without having to constantly go into settings menus and change the routing manually on each device.

The Plexus 4 was perfect for my situation. It's smaller than a guitar pedal so it fits nicely in my cramped quarters and will be great for live purposes. It does all of the basic MIDI routing and filtering stuff I needed it to do as well as working as a USB host, and with the MAJOR benefit that all of the setup can be done directly on the device without needing to plug it into my laptop and use software to configure it. The UI is very well designed--surprisingly intuitive for just being a grid of backlit buttons.

Besides its great set of features, the device itself is rock solid and I haven't encountered a single bug or any weird behavior while using it so far. Truly a fully realized product, which is rare for something I bought on pre-order (and with mention from the designer of possible new features and updates that could be added via firmware).

If you're looking for something compact and 100% fuss free for MIDI, this is it.

J
Joshua Emmons
All that and more!

There are other boxes that can take on USB MIDI host duties. There are boxes that can merge and route MIDI. There are boxes that can filter, split, or polychain MIDI messages. There are even the rare boxes that do all three! But none of them come close to doing all that with the fantastic simplicity of Plexus’s hands-on, no-computer-needed interface. A true gem for any studio!

J
Joe Coalesys
USB Host FTW

I upgraded to this from another style of hub that doesn't do USB Host. There's much more to it than that, but that's what initially brought me here. Works great!