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BO-32DE, BO-16DX/IN and BO-16DX/OUT are versatile breakout boxes that provide up to 32 balanced analogue audio inputs/outputs for audio devices equipped with D-sub audio inputs/outputs like the Tascam ML-16D/ML-32D or older multi-track recorders like the Tascam DA-98HR or DA-78HR, for example. They can also be used with any other product fitted with D-sub connectors compatible with standard Tascam pin assignment according to AES59-2012.

The BO-32DE with its Euroblock inputs/outputs is primarily intended for fixed wiring in permanent installations, while BO-16DX/IN and BO-16DX/OUT with their standard XLR connectors are ideal when even more flexibility is required like in broadcast, recording or post production studios or during live events.

All three models feature rugged, 1U rack-mountable metal chassis with invertible and removable rackmount ears and lettering that can also be read when mounted upside-down.


32 balanced audio inputs or outputs on Euroblock terminals for devices equipped with DB-25 connectors

Euroblock terminals on the BO-32DE can be used for both input and output, so you can use all terminals as inputs, all terminals as outputs, or use each group of eight channels as inputs or outputs. This means you could use a single BO-32DE to input 16 channels to a Tascam ML-16D and use the remaining 16 terminals as outputs. You could also assign 24 channels as inputs for a ML-32D and eight channels as outputs, it’s entirely up to you.

Connection example with a Tascam ML-32D:

Tascam BO-32DE breakout box connected to a Tascam ML-32D

Connection example with a Tascam ML-16D:

Tascam BO-32DE breakout box connected to a Tascam ML-16D

Euroblock plug for Tascam BO-32DE breakout box32 plugs with strain relief tail and wire bands included

The BO-32DE comes with 32 single Euroblock plugs, each with three screw fasteners for balanced cable routing and a strain relief tail for cables to be fixed with wire bands (also included).

Tascam DB-25 pin assignmentThe BO-32DE uses four DB-25 connectors for balanced connections with the main audio device. Tascam standard pin assignment, which is compliant with AES59-2012, ensures this breakout box can not only be used with Tascam products but also with any other audio device that meets this standard.

Removable rackmount ears on the Tascam BO-32DE breakout boxThe BO-32DE breakout box can be mounted very flexibly by changing the direction that the rackmount ears are attached to it. You can also entirely remove the rackmount ears when using the unit placed on a tabletop.

Tascam BO-32DE, BO-16DX/IN and BO-16DX/OUT breakout boxes mounted in a rackCan be mounted in the front or rear of a 19-inch rack case

Thanks to its compact size, including a depth of only 45 mm, this breakout box can even be mounted in the back of a rack case allowing for compact installations with very short cable runs.

Features at a glance

  • 32-channel balanced breakout box for ML-16D/ML-32D or other products with compatible D-Sub connectors
  • 16 balanced Euroblock connectors (two audio channels each) on the front panel
  • 32 Euroblock plugs with strain relief tail and wire bands included
  • Four 25-pin D-Sub connectors (8 audio channels each) on rear panel with standard Tascam pin assignment (AES59-2012)
  • Each group of eight channels can be used as balanced audio inputs or outputs
  • Rugged metal chassis
  • 19-inch rackmount (1U)
  • Removable rackmount ears can be attached to either front or rear
  • Dimensions (W × H × D): 483 mm × 44 mm × 51 mm
  • Weight: 0.9 kg
  • Cables not included


Connectors (front) 16 × Euroblock (balanced), 3.81 mm pitch (32 audio channels)
Connectors (rear) 4 × 25-pin D-sub, female
Attachment screws 8 × No. 4-40 UNC (inch threads)
Dimensions (w × h × d) 483 mm × 44 mm × 51 mm
Weight 0.9 kg
Included items 32 Euroblock plugs with tabs, cable band kit, rackmount screw kit, owner’s manual

Design and specifications subject to change without notice.

Page last modified: 2022-12-22 14:09:54 UTC