The 5 RU DL231 Active Microphone Splitter from Midas is an active microphone splitter with 24 inputs and 24 outputs. There are two independent Midas microphone preamplifiers per input channel with switchable 48V phantom power. This microphone splitter features a PCB layout specifically designed to maintain grounding as well as separation for both analog and digital signals. It comes fitted with an Ethernet control port and four AES50 ports for dual-redundant handling of two independent digital audio interfaces. MIDI in, out, and thru ports are also on board for use with Midas consoles.
The DL231 offers a 24-bit resolution and can be switched between 96 kHz and 48 kHz sampling rates. A Mute All Outputs button is provided for onstage re-patching. It is powered by a built-in dual-redundant power supply and is housed in a road-ready, rugged rack-mountable chassis designed for transport and storage in standard flight cases (sold separately).
Features
- 2 award-winning Midas microphone preamplifiers per input 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
- Selectable 96 kHz or 48 kHz sample rate operation
- All settings programmable from front panel controls or console
- PSU status indicator LEDs and configuration LCD display on front panel
- 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
Specifications
| Connectors | 24 x 3-pin XLR male, line output channels 24 x 3-pin XLR female, microphone/line input channels 1 x MIDI input port 1 x MIDI out port 1 x MIDI thru port 1 x 9-pin Sub-D female, diagnostics port 4 x RJ45 Neutrik etherCON, AES50 network ports 1 x RJ45 Neutrik etherCON, Ethernet control port 2 x IEC, 100 – 240 VAC power ports |
| Indicators | 1 x LCD display configuration status (front) 10 x LED PSU power status (front) 1 x LED Ethernet status (front) 8 x LED AES50 audio status (front) 24 x mute status, microphone inputs (rear) 24 x 48V phantom power status, microphone outputs (rear) |
| Controls | 4 x programming buttons (front) 1 x mute button (rear) 1 x boot button (rear) 2 x power on/off isolator switch (rear) |
| Remote Operation | Up to 328.1′ / 100 m via CAT5/5e cable |
| Sampling Frequencies | 48 kHz, 96 kHz |
| Bit Rate | 24 |
| Frequency Response | 20 Hz – 20 kHz (+0 dB to -1 dB) |
| Maximum Gain | 45 dB |
| Input CMRR | @ 0 dB Gain: 70 dB @ 45 dB Gain: 90 dB |
| Distortion (THD) | @ 0 dBu, 0 dB Gain: 0.01% @ 0 dBu, 45 dB Gain: 0.03% @ +20 dBu, 0 dB Gain: 0.01% @ +20 dBu, 45 dB Gain: 0.03% |
| Output Noise | @ 0 dB Gain: -86 dBu @ 45 dB Gain: -81 dBu |
| EIN | @ 0 dB Gain: -86 dBu @ 45 dB Gain: -126 dBu |
| Dynamic Range | 22 Hz to 22 kHz, @ Unity Gain: 107 dB 22 Hz to 22 kHz, @ 45 dB Gain: 102 dB |
| Crosstalk | At 1 kHz: -90 dB physically adjacent input channels At 10 kHz: -90 dB physically adjacent input channels |
| Supply Voltage | 100 – 240 VAC, 50/60 Hz |
| Power Consumption | Up to 150 W |
| Operating Temperature | 41 to 104°F / 5 to 40°C |
| Storage Temperature | -4 to 140°F / -20 to 60°C |
| Rack Space | 5 RU |
| Dimensions | 16.26 x 8.70 x 19.02″ / 41.3 x 22.1 x 48.3 cm |
| Weight | 32.6 lb / 14.8 kg |
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