Direct-injection boxes are, in many ways, the unsung heroes of audio. Their correct use promotes purer audio connections, truer interpretations of the real sound of the source signal, and reduces the risk of feedback in live situations. However, these benefits can only be enjoyed if the device is of appropriate quality – many are not!

The Klark Teknik LBB100 has established itself as a firm favorite with audio professionals all over the world, due to its impeccable audio performance and near indestructible build quality. It will accept incoming signals of up to +42dBu, and provides switched attenuation from 0dB to 45dB in 15dB steps, plus earth link facilities. Input connectors are two jacks (input and link) and a female XLR connector. The latter usefully allows the use of standard microphone cables between the ‘balanced’ XLR outputs increasingly found on backline devices and the DI.

The DN1414 rack mount DI box brings all the advantages of LBB100 into a convenient rack mount format, and places no less than fourteen separate DI modules at the disposal of the user. Ten of these have effectively the same features as LBB100, plus modules 11-14 are arranged so that they can be easily used as mono or stereo pairs. DN1414 also features a duplicate set of outputs on the rear panel, making it ideal for large keyboard or sequencer setups, as well as the facility to fit a multipin connector to the device if required.