DL231 24 Input, 24 Output Active Microphone Splitter with 2 Independent MIDAS Microphone Preamplifiers per Input

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DL231
  • 2 award-winning MIDAS microphone preamplifiers per channel with switchable +48 V phantom power
  • 2 dual redundant AES50 network ports with independent phase-locked loop synchronisation
  • 24 electronically balanced output channels can be sourced from microphone preamplifiers or AES50 ports
  • Remote operation up to 100 m via CAT5/5e cable
  • 24 bit audio operation with 96 kHz sample rate
  • All settings programmable from front panel controls or console

  • MIDI In, Out and Thru connectors
  • Features Neutrik etherCON* AES50 network ports
  • Rugged 5U rackmount chassis for durability in portable applications
  • Dual redundant auto-ranging universal switch-mode power supplies
  • 3-Year Warranty Program**
  • Designed and engineered in England

With today’s tech-savvy concertgoers demanding more and more from the professional sound engineer, the need to increase flexibility and functionality has never been greater. That’s why the MIDAS Research and Development team have expanded upon the existing Microphone Splitter format to bring you the DL231.

MIDAS – The Legend in Sound Quality

With two independent MIDAS mic preamps per input, the highest quality of sonic performance is guaranteed. And with dual-redundant network ports and power supplies, peace of mind comes as standard.

Analogue Meets Digital – The Best of Both Worlds

The DL231 combines the warmth and authenticity of analogue circuitry with the precision and agility of state-of-the-art digital techniques. Extreme care has been taken in the planning and execution of the PCB layout to maintain exceptional grounding and analogue/digital separation.

Versatility Without Compromise

As with all MIDAS products versatility without compromise is a priority, that’s why the DL231 comes fi tted with MIDI (In, Out and Thru) and an Ethernet Control port, plus four AES50 ports to handle the independent dual-redundant digital audio interfaces. The DL231 is capable of being switched between 24-bit 96 kHz and 48 kHz operation. A Mute All Outputs button is provided for convenient onstage re-patching – and the DL231 is powered by dual-redundant PSUs for superb reliability.

Housed in a road-ready, rugged rack-mountable chassis, the DL231 is ideally suited for transport and storage in standard fl ight cases (not included).

Integration Within the MIDAS Product Range

Styled to match our existing console aesthetic, and designed to work with all MIDAS digital consoles, high performance I/O has never been easier to use – or more cost eff ective.

Architecture and Engineering Specifications

The interface unit shall be designed for digital audio mixing applications and be optimised for use in live performance. It shall feature 24 input channels with two independent microphone preamplifiers with 2.5 dB gain steps and 24 servo-balanced electronic outputs on industry-standard XLR connectors and shall be capable of operating at 48 kHz and 96 kHz sampling rates.

The interface unit shall include a recessed switch on the rear panel to mute all outputs. The output channels shall have an option to select as their input source either the internal microphone preamplifiers or from the incoming digital audio network.

The interface unit shall support a 100 Megabit Ethernet frame-based digital audio network that shall offer dual redundancy and be compliant with the Audio Engineering Society AES50-2011 standard. Two dual redundant digital network audio interfaces with independent phase-locked loop synchronisation shall be provided that shall also be capable of independent operation at either 48 kHz or 96 kHz sample rates. One Ethernet control port and an industry-standard MIDI Interface (In, Out, Thru) shall also be provided.

The interface unit shall provide both front panel and remote network configuration of operational settings and provide an alphanumeric LCD display with associated menu navigation buttons, and LED status indication of power supply output rail condition and digital audio and control network connection status and activity.

The interface unit shall include two auto-ranging universal switch-mode power supplies with dual redundancy for use on a worldwide basis.

The interface unit shall be housed in a standard 5U 19″ rackmount chassis, and shall be 483 mm wide x 413 mm deep x 222 mm high (19.0″ x 16.3″ x 8.7″), with nominal weight 14.7 kg (32.3 lbs). The interface unit shall be installed in a rack frame or road case capable of safely supporting its weight. Input, output, and power connections shall be made at the rear panel of the interface unit. Installers shall allow adequate space at the rear for connection and disconnection of input, output, and power connections. The power requirements shall be 100 to 240 VAC, 50 to 60 Hz.

The interface unit shall be the MIDAS DL231 and no other alternative shall be acceptable.