Skip to product information
1 of 1

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 $179.00 USD
Regular price $219.00 USD Sale price $179.00 USD
Sale Sold out
Shipping calculated at checkout.
Power Adapter
* Early Bird - The discount for preorders is available until May 31st, 2024 for units shipping in June. View full details

A Routing and Filtering Powerhouse

Built with performance and ease-of-use in mind, PLEXUS:4 places connections between MIDI DIN, USB Host and USB Devices right at your fingertips. A useful selection of Filters and Poly Chain features can be configured on demand without the use of a computer, and each setting can be stored and recalled from 128 Presets. Housed in a small, durable aluminum enclosure for the most demanding environments.

  • 4x4 MIDI Routing

    Split and Merge each input with each output. The 4x4 Matrix of lighted buttons give clear indication of what messages are going where.

  • USB Host

    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.

  • USB Device

    Connect to a computer using the class-compliant USB MIDI Device port. Creates a new 1x1 MIDI USB Interface in software applications.

  • Filtering

    Block and modify MIDI Messages on each output independently. Can be used like Four stand-alone filter boxes. No computer is required to configure.

  • Poly Chain

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

  • Keyboard Split

    Send notes to different synths based on the pitch or the velocity of the note played. Easily divide any keyboard up into zones.

  • Clock Division

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

  • Status Monitoring

    Each active button on the 4x4 Matrix will light different colors for incoming messages indicating that a message is being passed, modified or blocked.

  • Presets

    128 Presets are available to store every Route, Filter and Poly setting for instant recall. 16 Presets can be recalled using the UI and all 128 can be recalled over MIDI.

  • 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.

  • Connection Bridge

    All connections can be part of MIDI signal routing. Pass messages between DIN, USB Host and USB Device connections.

  • Remote Control

    MIDI Commands can be used to control several major features remotely, including message routing, 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.

  • 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.

  • 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.

  • Program Change

    Remove all Program Change data by MIDI Channel.

  • Poly Channel

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