TONAL PLEXUS

  U-PLEX TPX2 TPX4 TPX6 TPX2s TPX4s TPX6s  

"... to standard 88-key pianos what Yankee Stadium is to a Little League park" — The New York Times

Have you ever considered what kind of music might be possible if your keyboard had more than just twelve keys per octave? If so, you are not alone. In fact, it's been one of the most enduring and puzzling questions in all of music history. The Tonal Plexus is not just a product of years of research and development, but is a result of literally hundreds of years of experimentation with musical tuning, keyboard design and research in human pitch perception. The Tonal Plexus provides no fewer than 211 keys per octave, allowing the finest discrete control of tuning expression ever available on a MIDI keyboard. If you want to make music that truly sounds new and different, then this is the keyboard for you!

   Before you buy ...


U-PLEX


U-PLEX 422 Keys Microtonal USB-MIDI Controller

U-PLEX is a class-compliant USB-MIDI controller with 422 keys, two octave transposition buttons, and a 1/4'' jack for sustain pedal input. It outputs untuned MIDI data to any application that receives MIDI. Licenses for TPXE and HPLF tuning software are included, allowing complete control over the pitch output of every key. Its small form factor and USB connectivity make U-PLEX an ideal choice for making microtonal music with laptop and desktop computers. | Details

  • Two Octaves U-PLEX Specs
  • 14.5 x 9.5 x 2 in. (37 x 25 x 5 cm)
  • 2.5 lbs. (1.2 kg)
  • ATA case — Pelican 1090
 

U-PLEX $59900  Size:           

... built for desktop & laptop music making

  • outputs untuned USB-MIDI data
  • class-compliant driverless USB MIDI device
  • USB jack for power and MIDI
  • SUSTAIN pedal jack (1/4'')
  • octave transposition buttons: up and down
  • includes license for TPXE and HPLF

TPX


TPX2 422 Keys Microtonal MIDI Controller

TPX2 is a MIDI controller with 422 keys and 32 full-range programmable tunings, which outputs tuned MIDI data and is compatible with all General MIDI tone modules. On-board controls include faders, switches, pedal inputs, and more. TPXE software allows any key to play any pitch. TPX2 is an ideal choice for portable microtonal music making using standard MIDI gear. | Details

  • 18.5 x 9.5 x 3 in. (48 x 25 x 8 cm)
  • 3 lbs. (1.4 kg)
  • ATA case — Pelican 1495
 

TPX2 $99900           


TPX4 844 Keys Microtonal MIDI Controller

TPX4 is a MIDI controller with 844 keys and 32 full-range programmable tunings, which outputs tuned MIDI data and is compatible with all General MIDI tone modules. Like its siblings, TPX2 and TPX6, TPX4 on-board controls include faders, switches, pedal inputs, and more. TPXE software allows any key to play any pitch. TPX4 is an ideal choice for microtonal music making using standard MIDI gear. | Details

  • 30.5 x 9.5 x 3 in. (77.5 x 25 x 8 cm)
  • 9 lbs. (4.1 kg)
  • ATA case — TZ Case 0036EBO
 

TPX4 $159900       


TPX6 1266 Keys Microtonal MIDI Controller

TPX6 is a MIDI controller with 1266 keys and 32 full-range programmable tunings, which outputs tuned MIDI data and is compatible with all General MIDI tone modules. Like its smaller siblings, TPX2 and TPX4, TPX6 on-board controls include faders, switches, pedal inputs, and more. TPXE software allows any key to play any pitch. TPX6 is an ideal choice for microtonal music making using standard MIDI gear. | Details

 
  • 42.5 x 9.5 x 3 in. (108 x 25 x 8 cm)
  • 13 lbs. (6.1 kg)
  • ATA case — SportLock 00008

TPX6 $219900  Color  Quantity     

... built for MIDI compatibility & portability

  • outputs tuned or untuned MIDI data
  • works with standard MIDI hardware and computers via MIDI interface
  • General MIDI compatible
  • MEMORY: 32 full range programmable tunings — create and upload your tunings using TPXE
  • TUNING PRECISION: 14-bit pitch bend resolution = 0.01¢
  • 4 FADERS: panning, modulation, volume, and velocity
  • FADER SWITCHES: control SG waveform ADSR and equalization
  • 2x20 DISPLAY: preset, tuning, bank, patch, and polyphony
  • JOG DIAL: select and enter preset program parameters
  • 16 POLYPHONY SWITCHES: 1 to 16 voices
  • 16 PATCH BUTTONS: store and recall synth banks and patches
  • 16 TUNING TABLE BUTTONS: store and recall tuning tables
  • MIDI IN / program: use TPXE to upload tunings, or augment the keyboard with an external controller
  • MIDI OUT (tuned): connect to GM tone module or softsynth for tuned output
  • MIDI THRU (out untuned): connect to computer or external module for untuned output
  • SUSTAIN PEDAL: connect a damper pedal to control MIDI sustain
  • VELOCITY, VOLUME PEDALS: connect Lo-Z (20K) mono volume pedals to control MIDI velocity and volume
  • POWER: 12V DC input
  • includes international switching power supply and 2 free MIDI cables
  • User Manual (pdf)

TPXs


TPX2s 422 Keys Microtonal MIDI Synthesizer

TPX2s sports all the features of TPX2, with the addition of a built-in General MIDI synthesizer, stereo amplifier, and speakers, making it the ideal choice for stand-alone music making with maximum portability and ease of use. Just plug it in, turn it on, and start making microtonal music. | Details

  • 18.5 x 13.5 x 3 in. (48 x 35 x 8 cm)
  • 7.5 lbs. (3.4 kg)
  • ATA case — Pelican 1600
 

TPX2s $129900       


TPX4s 422 Keys Microtonal MIDI Synthesizer

TPX4s sports all the features of TPX4, with the addition of a built-in General MIDI synthesizer, stereo amplifier, and speakers, making it the ideal choice for stand-alone music making with maximum ease of use. Just plug it in, turn it on, and start making microtonal music. | Details

  • 30.5 x 13.5 x 3 in. (77.5 x 35 x 8 cm)
  • 12 lbs. (5.5 kg)
  • ATA case — Pelican 1700
 

TPX4s $189900         

... built for standalone portable music making


TPX6s 1266 Keys Microtonal MIDI Synthesizer

Unlike the other keyboards in the TPXs line, TPX6s is not just TPX6 with the addition of a built-in synthesizer, amplifier and speakers; it features a different set of electronics with larger display, LED polyphony indicators, and a substantially enhanced interface with Live Control of synthesizer parameters. It also has a joystick, and a port for future expansion. This is the most complete solution available for stand-alone microtonal music making. Plug it in, turn it on, and start making microtonal music. | Details

 
  • 37.5 x 14.5 x 3 in. (95.5 x 37 x 8 cm)
  • 16 lbs. (7.3 kg)
  • ATA case — SKB-R4215W

TPX6s $249900  Color  Quantity   


... built for standalone microtonal music making

NOTE: ATA cases are optional for 2 octave keyboards, and larger keyboards are always shipped inside of an ATA case. Cases as shipped from the manufacturer or other retailer will not have properly fitted internal foam for Tonal Plexus keyboards. When you buy a case from H-Pi Instruments, you get it with internal foam properly fitted for the instrument. Ship safe!