DL444 is a modular 8 channel analogue mic/line input and line level output card for MIDAS PRO Series control centres and modular I/O boxes, and features award-winning MIDAS microphone preamplifiers with switchable +48 V phantom power and servo-balanced electronic outputs with high current drive capability for long cable runs. Premium low latency 24 bit 96 kHz ADC and DAC converters are used to minimise distortion and noise artefacts, and DL444 features balanced inputs and outputs on 25 way D-type connectors, ideal for fixed installations where the input and output channel counts can be maximised. It also features an automatic output mute facility if the audio signal path is muted via the PRO Series control centre.
Features
- Award-winning Midas microphone preamplifiers with switchable +48 V phantom power
- Low latency 24 bit 96 kHz ADC and DAC converters
- 8 inputs with selectable microphone or line level on a 25 way D-type connector
- 8 electronically balanced line outputs on a 25 way D-type connector
- High output current drive for long cable runs
- +48 V and Output mute LEDs per channel with remote status monitoring 25 way D-type connector
- Compatible with Midas PRO3, PRO6, PRO9, PRO X, DL351 and DL451
Specifications
System
| Sample rate |
96 kHz |
| Dynamic range |
>110 dB unweighted (20 Hz – 20 kHz) |
| Maximum input level |
Mic/Line (Unity Gain) +21 dBu Mic/Line (-2.5 dB Gain) +24 dBu |
| Maximum output level |
+21 dBu |
| CMRR @ 1 kHz |
Mic Input (Unity Gain) Typically >70 dB |
| Mic EIN (45 dB Gain) |
-127 dBu |
| Noise (Unity gain) |
<-89 dBu unweighted (20 Hz – 20 kHz) |
| Frequency response |
±0.5 dB (20 Hz – 20 kHz, relative to 1 kHz) |
| THD+N (Unity Gain) |
<0.01% |
| Crosstalk @ 1 kHz |
<-90 dB |
| Input impedance |
10k O |
| Output impedance |
50 O |
| Connectors |
25 way D connectors Balanced |
| Phantom power |
+48 V, individually switchable per channel |
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