Sennheiser SL DI 4 XLR: Analog-to-digital audio converter

The SL DI 4XLR is a Dante interface developed for use with Sennheiser SpeechLine receivers that can be powered and also allows a Dante network to be powered from the four analogue MIC/LINE inputs.

Magnetron has announced the SL DI 4XLR digital analog audio converter from Sennheiser. A Dante interface with four symmetrical MIC/Line inputs and an HF filter, which have been designed as XLR 3F sockets.

For each entry it is possible to activate gain settings, through software, from 0dB, +15db,+30dB and +45dB a 10dB pad as well as a 48V Phantom power. Status LEDs on the front panel of the unit indicate the corresponding gain and pad settings as well as the Phantom power level for each of the four inputs.

The unit incorporates two RJ-45 network sockets that allow the mounting of Dante series cabling (Dante Daisy Chain). The internal A/D conversion is performed with a resolution of 24 bits and a sample rate of 48 khz. The transmission speed is 100 MB/s.

The transmission range of the unit is between 20Hz and 20,000Hz. The input impedance is >1,8 kiloohms for any gain setting. The equivalent own noise is -113 dBu. Maximum entry levels (without 10dB pad) are from +8 dBu with gain of 0 db, -7 dBu with gain of +15 db, -22 dBu with gain of +30 dB and -36 dBu with +45dB gain. With pad connected, maximum input levels increase by 10dB.

The harmonic distortion of the system plus noise is < 0.02% with any gain setting (3dB input signal below the maximum level).

The unit can be powered via CAT5 Ethernet cable, via a PoE network switch that supports 802.3 af or via an external 12V DC power supply.

In case of power supply via PoE, loop connection of up to two units is possible, and in case of power supply through an external power supply of 12 V DC, up to three units. The energy consumption is 2.7 W (225 ma) to + 12 V DC without Phantom power and 5,5 W (460ma) to +12 DC V and a current of 10 mA per input with phantom power connected.

The unit features a robust metal housing with integrated mounting angles. The dimensions of the housing are 219 x 38 x 120 mm (W x H x Pro) and the weight is 0,77 Kg. The serving temperature is between 0ºC and 40ºC