Midas DL231 - 24-Input/24-Output Active Microphone Splitter with 2 Midas Preamplifiers per Input in Blue Finish

The Midas DL231 is a high-performance 24-input/24-output active microphone splitter, designed to deliver exceptional audio quality and flexibility in live sound environments. Featuring two independent Midas microphone preamplifiers per input, the DL231 guarantees the highest level of sonic performance, ensuring pristine, transparent sound for every input. This splitter combines the warmth and authenticity of analogue circuitry with the precision and agility of advanced digital techniques, resulting in superior audio quality that meets the demands of modern live sound systems. With dual-redundant AES50 network ports, dual-redundant power supplies, and robust construction, the DL231 offers both reliability and peace of mind, making it an essential tool for professional audio engineers.

The DL231 incorporates state-of-the-art design and engineering, ensuring exceptional grounding and analogue/digital separation. With the ability to operate at both 96 kHz and 48 kHz sample rates, the unit offers flexible integration with various Midas digital consoles and other AES50-equipped devices. The DL231 provides 24 electronically balanced output channels, which can be sourced from the microphone preamplifiers or AES50 digital ports, giving engineers the flexibility to choose between analog or digital audio signals. Additionally, a convenient Mute All Outputs button allows for onstage re-patching without disrupting the audio flow, while MIDI (In, Out, and Thru) connectors and an Ethernet control port provide further versatility for remote control and integration with other systems.

The DL231's front panel features a clear LCD display for easy access to configuration settings, along with LED status indicators to monitor the condition of the power supply and the AES50 network connection status. With its rugged 5U rackmount chassis, the DL231 is built for the demands of live touring, ensuring durability and reliable operation in the toughest environments. The unit also supports remote operation up to 100 meters via CAT5/5e cable, making it ideal for large-stage setups where flexibility and signal distribution are crucial.

Thanks to its dual-redundant power supplies, the DL231 ensures that your system remains operational even in the event of a power failure. The auto-ranging universal switch-mode power supply accommodates global voltage variations, making it suitable for use worldwide. The DL231 is also equipped with premium Neutrik etherCON AES50 ports, ensuring secure and stable network connections for digital audio routing. Whether you're working with a small-scale production or a large touring event, the Midas DL231 provides a reliable, high-performance solution for all your microphone splitting and signal distribution needs.

Features

• 2 award-winning Midas microphone preamplifiers per input with switchable +48 V phantom power
• 24 electronically balanced output channels sourced from microphone preamplifiers or AES50 ports
• Dual-redundant AES50 network ports with independent phase-locked loop synchronization
• Selectable 96 kHz or 48 kHz sample rate operation
• All settings programmable from front panel controls or console
• Mute All Outputs button for convenient onstage re-patching
• Front panel LCD display with intuitive menu navigation
• LED status indicators for power supply and AES50 network connection status
• MIDI In, Out, and Thru connectors for easy integration with Midas consoles
• Neutrik etherCON AES50 network ports for secure and durable connections
• Rugged 5U rackmount chassis for durability in portable applications
• Dual-redundant auto-ranging universal switch-mode power supplies
• Power consumption: <150 W
• Voltage: 100-240 V AC +10%
• Operating temperature range: +41°F to +104°F
• Storage temperature range: -4°F to +140°F
• Dimensions: 5U x 16.14 inches deep
• Net weight: 33.07 lbs
• Shipping weight: 39.68 lbs

Specifications

Audio Performance Specifications

• Frequency response
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 0 dB, 20 Hz: +0 dB to -1 dB, 20 kHz: +0 dB to -1 dB
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 45 dB, 20 Hz: +0 dB to -1 dB, 20 kHz: +0 dB to -1 dB
• Gain error at 1 kHz
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 0 dB, Max: +1 dB, Min: -1 dB
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 45 dB, Max: +1 dB, Min: -1 dB
• Input CMRR Typical
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 0 dB, 100 Hz: 70 dB, 1 kHz: 70 dB
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 45 dB, 100 Hz: 90 dB, 1 kHz: 90 dB
• Distortion at 0 dBu
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 0 dB, 1 kHz: 0.01%, 10 kHz: 0.01%
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 45 dB, 1 kHz: 0.03%, 10 kHz: 0.03%
• Distortion at +20 dBu
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 0 dB, 1 kHz: 0.01%, 10 kHz: 0.01%
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 45 dB, 1 kHz: 0.03%, 10 kHz: 0.03%
• Signal path noise 22 Hz to 22 kHz unweighted (inputs 150 Ω terminated)
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 0 dB, Output noise: -86 dBu, EIN: -86 dBu
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 45 dB, Output noise: -81 dBu, EIN: -126 dBu
• Dynamic range 22 Hz to 22 kHz unweighted
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 0 dB, Maximum level: +21 dBu, Dynamic range: 107 dB
  • Input: DL231 I/O Box, Output: DL231 I/O Box, Gain: 45 dB, Maximum level: +21 dBu, Dynamic range: 102 dB

System Inputs and Outputs

• I/O Box inputs
  • Connector: 3-pin XLR balanced
  • A/D converter: 24-bit, 96 kHz and 128 times oversampling
• I/O Box outputs
  • Connector: 3-pin XLR balanced
  • D/A converter: 24-bit, 96 kHz and 128 times oversampling
• MIDI
  • MIDI connector: In, out and through on 5-pin DIN (for use with Midas consoles only)
• 48 kHz I/O digital system inputs and outputs:
  • System connector A (X): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR
  • Redundant connector A (Y): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR providing redundant backup
  • System connector B (X): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR
  • Redundant connector B (Y): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR providing redundant backup
• 96 kHz I/O digital system inputs and outputs
  • System connector A (X): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR
  • Redundant connector A (Y): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR providing redundant backup
  • System connector B (X): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR
  • Redundant connector B (Y): 1 x AES50 (24 channels of bi-directional digital audio) on EtherCON XLR providing redundant backup

Input and Output Characteristics

• 48 kHz Digital I/O Characteristics
  • Type: AES50
  • Channels: 24
  • Data length: 24-bit
  • I/O: Bi-directional
  • Description notes: Conforms to AES50-2011
  • Connector: EtherCON XLR
• 96 kHz Digital I/O Characteristics
  • Type: AES50
  • Channels: 24
  • Data length: 24-bit
  • I/O: Bi-directional
  • Description notes: Conforms to AES50-2011
  • Connector: EtherCON XLR

General Specifications

• Sampling frequency: 48 kHz/96 kHz
• Dynamic range @ 1 kHz: 22 Hz to 22 kHz (at unity gain): > 107 dB
• Maximum gain: 45 dB
• Crosstalk @ 1 kHz: -90 dB physically adjacent input channels
• Crosstalk @ 10 kHz: -90 dB physically adjacent input channels
• Dimensions: 5U x 16.14 inches deep
• Net weight: 33.07 lbs
• Shipping weight: 39.68 lbs
• Power requirements: 100 V to 240 V AC +10%, 50 to 60 Hz
• Power consumption: <150 W
• Operating temperature range: +41°F to +104°F
• Storage temperature range: -4°F to +140°F