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Details about  MIDI Thru Box-4 (Splitter)

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MIDI Thru Box-4 (Splitter)
Item Ended
Item condition:
27 Mar, 2014 11:30:16 GMT
Doesn't post to United States | See details
Item location:
Southampton, United Kingdom


eBay item number:
Seller assumes all responsibility for this listing.
Last updated on  25 Mar, 2014 08:08:53 GMT  View all revisions
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Item specifics

New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is ... Read moreabout the condition
MIDI Thru Box-4 (Splitter)



The Technobots MIDI Thru boxes or splitters as they are sometimes called address the problem of driving more than 1 MIDI device from the same MIDI source. It also resolves the problem of signal delay and signal distortion with chains of MIDI thru to MIDI in (especially where the MIDI thru is via software).

MIDI devices such as a master keyboard, sequencer, drum machine etc.. typically only have one output and possibly a MIDI thru port.  A MIDI communication signal is really a current loop so you cannot reliably parallel MIDI connections, so a MIDI out can only drive a single MIDI in. Our MIDI Thru boxes take a MIDI in signal, opto isolate it and generate between 4 and 8 exact copies of the MIDI In signal simultaneously and actively drives these to the outputs.  Some MIDI thru boxes do not require a power supply but these can have limitations and restrictions such as cable connections, master signal quality / drive voltage etc.. The Technobots Thru Boxes require a 5V dc power supply (included) to power the internal active electronics and thus not depend on the complaince of the master signal and in turn boost the signal to the full 5V again for reliable re-transmission to the MIDI slave devices.

The MIDI Thru box – 4 can drive up to 4 slave MIDI devices from the one input signal. These thru boxes are very straightforward to use, simply plug a lead in from the master MIDI signal out (or thru if needed) to the thru box input using a standard 5-pin 180° DIN plug lead. Connect the thru box outputs to the IN sockets on the MIDI slave units again using standard 5-pin 180° DIN plug leads.

Housed in a heavy duty diecast aluminium enclosure to withstand the punishment of use on the road as well as for studio use.

Connect the 5V power supply (included) to the socket on the rear (change the mains adaptor head to suit the wall socket in your country) and plug into the mains.


MIDI Thru Box-4

MIDI Thru Box-8

Input Channels



Output Channels



MIDI Message Indicators


Yes, Bank A & Bank B

Thru Box Input Voltage

5V dc (< 30mA)

5V dc (< 30mA)

Mains Adaptor Voltage

100-240Vac, 50-60Hz

Thru Box Power Input Socket

2.1 x 5.5 x 10mm Socket


111 x 60 x 31mm

Supplied complete with 5Vdc power supply with UK, EU and US mains heads.

Made in England by Technobots, 8 channel version 2901-028 also available.

Enquiries from Dealers welcome. Instruction Manual

Business seller information

Technobots Ltd
VAT number: UK 799911360

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Cancel an unwanted order within 7 days in writing, return in original condition at the purchasers expense with copy of invoice within 14 days for a refund (n/a to purchases made by a business). Excludes products modified to customers requirements.
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