Midas DL155 - 16-Input/16-Output Stage Box with 8 Midas Microphone Preamplifiers and AES3 Digital Interface in Blue Finish

The Midas DL155 is a highly versatile and robust 16-input/16-output stagebox designed to provide exceptional sound quality and reliability in demanding live sound environments. Equipped with 8 award-winning Midas microphone preamplifiers, the DL155 ensures crystal-clear audio with a pristine, transparent sound that has made Midas a legendary name in the industry. These preamplifiers are known for their ability to capture every nuance of a performance, delivering warmth, depth, and clarity while maintaining spatial positioning and capturing a precise sound image. The DL155 features 2.5 dB analogue gain steps and switchable +48 V phantom power, offering compatibility with a wide range of microphones and ensuring excellent sonic reproduction. This makes the DL155 the ideal choice for Midas PRO and M32 Series digital consoles, providing a reliable digital snake connection from the stage to Front of House.

The DL155 features dual redundant AES50 networking, providing fault tolerance and network redundancy for high-stakes live sound environments. Utilizing SuperMAC (AES50-compliant) digital audio networking technology from Klark Teknik, the DL155 supports high channel counts, ultra-low latency, sample-synchronous and phase-aligned networked clock distribution, and error detection and correction, ensuring stable performance even in the most demanding conditions. It supports multiple sample rates for the AES50 connections, including 96 kHz for use with Midas PRO Series consoles and 48 kHz for Midas M32 Series consoles. The DL155 also offers flexibility with its 8 AES3 (AES/EBU) digital inputs and outputs, each configured as four digital data streams on individual XLR connectors. This enables easy integration with other AES3-compatible devices, offering a seamless digital audio interface for professional audio systems.

Designed for live concert touring, the DL155 boasts 8 active servo-balanced, low-impedance line-level outputs capable of driving long cable runs without signal degradation. The outputs also feature an automatic mute function, which is activated when the audio signal path is muted by the mixing console operator. Each output connector is equipped with individual LED indicators to provide clear, real-time status feedback. The DL155 is also equipped with an external clock synchronization feature for the input channels, allowing for precise word length and clock source options for output channels. The unit features a sample rate converter for both inputs and outputs and offers multiple options for clock synchronization, including internal 48 kHz, internal 96 kHz, or external synchronization. The AES3 inputs have LED indicators to show synchronization lock to the incoming digital data stream.

The DL155 is designed for ease of use with an intuitive front panel LCD display and LED status indicators. These provide a clear overview of operational status, including power supply output conditions and AES50 network and Ethernet connection status. The configuration settings for the DL155 can be easily adjusted via the front panel or remotely from the mixing console, making it a flexible solution for live sound engineers who need quick and reliable control. Built with a rugged 2U steel rackmount chassis, the DL155 is designed to withstand the demands of touring while ensuring long-lasting reliability. Premium Neutrik connectors for audio and network connections ensure dependable performance throughout the life of the unit.

With a universal auto-voltage sensing switch-mode power supply, the DL155 operates worldwide, accepting input voltages from 100 to 240 V AC. The unit is equipped with dual-redundant power supplies to ensure continuous operation even in the event of a failure. With its flexible connectivity options, world-class audio performance, and robust design, the Midas DL155 is a versatile and essential component for any professional audio setup.

Features

• 8 award-winning Midas microphone preamplifiers with switchable +48 V phantom power
• 8 AES3 (AES/EBU) digital inputs and outputs, each configured as four digital data streams on XLR connectors
• 8 electronically balanced low-impedance line-level outputs
• Remote operation up to 100 m via CAT5/5e cable
• Supports 24-bit audio operation with 96 kHz sample rate
• Open architecture allows for future 48 kHz operation
• All settings programmable from front panel controls or console
• Front panel LCD display with intuitive menu navigation
• LED status indicators for power supply, AES50, and Ethernet network connection status
• Supports dual redundant AES50 networks for increased reliability
• Neutrik etherCON AES50 network ports for secure and durable connections
• Rugged 2U rackmount chassis designed for durability in touring environments
• Auto-ranging universal switch-mode power supply for worldwide use
• Dual-redundant power supplies with seamless switchover
• Power consumption: <150 W
• Voltage: 100-240 V AC +10%
• Operating temperature range: +41°F to +113°F
• Storage temperature range: -4°F to +140°F
• Dimensions: 3.5 x 19 x 15 inches
• Net weight: 14.3 lbs
• Shipping weight: 18.7 lbs

Specifications

External Connections

• Primary Analogue Inputs: Mic/Line inputs - balanced XLR connectors - 10 kΩ load
• Primary Analogue Outputs: Main Outputs - balanced XLR connectors - 50 Ω source
• Primary Digital Inputs: XLR connectors - 110Ω
• AES50 Connections: Neutrik Ethercon with status indication
• Diagnostic Connection: 9 W female 'D'-type connector
• Power Connections: IEC mains inlet - 100-240 V AC~50-60 Hz +10%

Audio Electronic Specifications

• Maximum Input Level:
  • Mic/Line (at unity gain): +21 dBu
  • Mic/Line (at -2.5 dB gain): +24 dBu
• CMR at 1 KHz (typical):
  • Mic (at unity gain): >-70 dB
  • Mic (at 40 dB gain): >90 dB
• Noise:
  • Mic EIN at 40 dB gain: -126 dBu
  • Output noise at unity gain: -86 dBu
• Frequency Response: 20 Hz - 20 kHz +0.5 dB
• Distortion at 1 kHz: Input to output (0 dB) <0.01%
• Crosstalk at 1 kHz: Channel to channel <-90 dB
• Maximum Output Level: Line outputs (into 600Ω) +21 dBu
• Dynamic Range at 1 kHz: 22 Hz - 22 kHz (at unity gain) >107 dB unweighted (20 Hz - 20 kHz)
• Voltage: 100 V AC to 240 V AC +10%
• Frequency: 50 Hz to 60 Hz
• Consumption: <150 W

Digital Inputs

• Connector: AES3 (two channels of digital audio) on 3-pin XLR
• Sample rates: Accepts any frequency between 32 k to 96 k
• Bypass: Sample rate converter can be bypassed

Digital Outputs

• Connector: AES3 (two channels of digital audio) on 3-pin XLR
• Sample rates: 48 k, 96 k or auto tracking to inputs
• Bypass: Sample rate converter can be bypassed
• Word length: 16-, 20- or 24-bit

Physical

• Operating temperature range: +41°F to +113°F
• Storage temperature range: -4°F to +140°F
• Height: 3.5 inches
• Width: 19 inches
• Depth: 15 inches
• Net Weight: 14.3 lbs
• Shipping Weight: 18.7 lbs