MIDAS DL252-UL 16 Input, 48 Output Stage Box with 16 Midas Microphone Preamplifiers (DL252-UL)

Vendor: Midas
MIDAS DL252-UL 16 Input, 48 Output Stage Box with 16 Midas Microphone Preamplifiers (DL252-UL) The DL252 stands as a commanding 5U 19" fixed-configuration rack I/O unit, presenting 16 mic/line level inputs and impressive...

MIDAS DL252-UL 16 Input, 48 Output Stage Box with 16 Midas Microphone Preamplifiers (DL252-UL)

The DL252 stands as a commanding 5U 19" fixed-configuration rack I/O unit, presenting 16 mic/line level inputs and impressive 48 line-level outputs, embodying the esteemed Midas sound quality fortified by time-honored and tour-tested technologies. At its core lie the acclaimed Midas microphone preamplifiers, renowned for their precision with 2.5 dB analog gain steps. This unit is further empowered by three AES50 network ports, providing robust N+1 redundancy. In addition to these features, it houses an Ethernet control port and a MIDI Interface (In, Out, Thru), positioning the DL252 as the perfect complement to the Midas M32 Series and PRO Series digital consoles. Its innate compatibility facilitates a seamless digital snake connection, bridging the Front of the House and the stage with unparalleled clarity and reliability, ensuring a cohesive and dynamic audio experience for diverse live performances.

Award-Winning MIDAS Microphone Preamplifier

The revered Midas microphone preamplifier remains the quintessence of the renowned Midas sound, hailed by leading live sound and recording engineers worldwide. Crafted from over four decades of design mastery and handpicked premium-grade components, it exudes an acclaimed warmth and depth that unveils nuanced ambiance, preserves spatial intricacies, and impeccably captures an exact sound portrait. The celebrated resonance of the award-winning Midas microphone preamplifier has ignited boundless creativity among generations of live sound engineers, enabling them to craft sonic landscapes that enrapture audiences on a global scale. Recognizing the pivotal role of the microphone preamplifier as the genesis of pristine sound within the console, the DL252 proudly houses the latest evolution of Midas microphone preamplifiers. These components painstakingly reproduce every sonic facet, ensuring no fragment of performance escapes notice. Transparency, pristine sound quality, minimal noise, and robust common-mode rejection epitomize the enduring excellence of this classic design. Over the years, numerous mix engineers have unearthed an elevated sonic realm within this resilient and overload-tolerant design. Under intense sonic pressure, it evolves, revealing a new sonic spectrum where its crystal-clear audiophile reproduction seamlessly merges with a harmonious blend of overtones, crafting a warm, organic resonance. This fusion resonates with millions of concert-goers and echoes eternally through numerous live albums, a testament to its enduring legacy.

Digital Audio Networking

The SuperMAC technology, compliant with AES50 standards and pioneered by Klark Teknik, presents a comprehensive suite of attributes tailored for the exacting demands of live concert touring. Its capabilities encompass high channel counts, exceptionally low and predictable latencies, synchronized sample-based and phase-aligned clock distribution across networks, error detection, and correction mechanisms, robust network redundancy, and an intuitively deployable and user-friendly interface. In perfect harmony with this cutting-edge technology, the DL252 seamlessly integrates, offering compatibility not only with all Midas digital consoles and audio system engines but also with any other devices equipped with AES50 technology. This interoperability ensures a harmonious blend of diverse components, creating a unified audio ecosystem for effortless integration and unparalleled performance in the live concert domain.

High Output Drive Line Outputs with Mute

The DL252 boasts an impressive array of 48 active servo-balanced low-impedance line level outputs, designed with robust output current capability specifically tailored for extensive cable runs without compromising on signal quality. Adding to its convenience, a recessed 'Mute All Outputs' switch situated on the rear panel facilitates noiseless and secure cable re-patching, ensuring a quiet and safe process even amid a live show. This feature provides flexibility for on-the-fly adjustments without causing disruptions or unwanted noise.

96 kHz or 48 kHz Operation

DL252 supports multiple sample rates for the AES50 connections - 96 kHz for use with Midas PRO Series, and 48 kHz for use with Midas M32 Series.

Remote Console or Front Panel Control

Absolutely! The DL252 ensures versatile configuration adjustments, allowing settings to be managed either remotely from the mixing console or directly via the user-friendly front panel interface. The unit features front panel switches for all configuration options, complemented by LED status indicators that offer highly visible operational feedback across wide viewing angles and distances. These LED status indicators play a crucial role, providing clear insights into various aspects such as power supply output rail condition, AES50 and Ethernet network connection status and activity, choice between internal or external clock synchronization, unit identification, and communication mode settings. This comprehensive visual feedback ensures that operational statuses are easily monitored and adjusted, enhancing user control and efficiency during setups and performances.

Built for the Road

The DL252 is housed within a robust steel 5U rackmount enclosure, purposefully crafted to endure the demanding conditions of live concert touring. Employing premium Neutrik connectors, this unit guarantees steadfast and dependable audio and network connections, delivering unwavering performance night after night.

Dual Redundant Universal Switch-Mode Power Supplies

Indeed, the DL252 is equipped with a dual-redundant power supply system featuring auto-voltage sensing, ensuring adaptability to global power standards. In the rare occurrence of one power supply failing, these redundant units seamlessly initiate a switchover process, ensuring uninterrupted operation. This design provides a failsafe mechanism, guaranteeing continued performance and reliability even in the unlikely event of power supply loss.

Architecture & Engineering Specifications

The interface unit shall be designed for digital audio mixing applications and be optimized for use in live performance. It shall feature 16 integrated microphone preamplifier inputs with 2.5 dB analog gain steps and 48 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 interface unit shall support a 100-megabit Ethernet frame-based digital audio network that shall offer N+1 cable redundancy and be compliant with the Audio Engineering Society AES50-2011 standard. Three digital audio network ports and one Ethernet control port shall be provided. An industry-standard MIDI Interface (In, Out, Thru) shall also be provided. The interface unit shall provide both the front panel and remote network configuration of operational settings and provide LED status of power supply output rail condition, digital audio and control network connection status and activity, clock synchronization source, unit identification, and communication mode setting. 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 414 mm deep x 221 mm high (19.0" x 16.3" x 8.7"), with a nominal weight of 10 kg (22.05 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 DL252 and no other alternative shall be acceptable.


  • 16 award-winning Midas microphone preamplifiers with switchable +48 V phantom power

  • 48 actively balanced low impedance line level outputs

  • Selectable 96 kHz or 48 kHz sample rate operation

  • Remote operation up to 100 m via CAT5/5e cable

  • All settings programmable from front panel controls or console

  • PSU status indicator LEDs and configuration switches on front panel

  • 3 AES50 network ports for redundant connections

  • 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

General Statistics
XLR connections

N + 1 cable redundancy and dual redundant PSUs

General Specifications
Sampling rate

48 kHz, 96 kHz

Dynamic range

107 dB, 22 Hz to 22 kHz (no pre-emphasis)

Maximum gain

45 dB

Crosstalk @ 1 kHz

-100 dB physically adjacent input channels

Crosstalk @ 10 kHz

-90 dB physically adjacent input channels


5U x 414 mm deep

Net weight

10 kg

Shipping weight

18 kg

Power requirements

100 to 240 VAC, 50 to 60 Hz

Power consumption at 115 V

1 PSU: 85 W, 85 VA 2 PSU: 110 W, 110 VA

Power consumption at 230 V

1 PSU: 90 W, 100 VA 2 PSU: 110 W, 135 VA

Operating temperature range

+5°C to +40°C

Storage temperature range

-20°C to +60°C

System Inputs and Outputs
I/O box inputs
Box analogue outputs
48 kHz I/O digital system inputs and outputs
96 kHz I/O digital system inputs and outputs
Input and Output Characteristics
Analogue input characteristics
Analogue output characteristics
48 kHz digital I/O characteristics
96 kHz digital I/O characteristics