Applications
MS-2XX with dynamic mics
To eliminate noise, isolate your microphones using the XLR-female inputs and send the output to your mixing console via the XLR-males. For mic splitting, use the screw-down terminal block as a direct out. This also lets you pass 48V phantom for condenser microphones.
Specifications
All levels are input unless noted, +4 dBu = 1.23 V RMS
| PARAMETER | CONDITIONS | MINIMUM | TYPICAL | MAXIMUM |
|---|---|---|---|---|
| Input impedance, Zi | 1 kHz, -20 dBu, test circuit 1 | 1.00 kΩ | 1.08 kΩ | 1.15 kΩ |
| Insertion loss | 1 kHz, -20 dBu, test circuit 1 | -0.90 dB | -0.82 dB | -0.70 dB |
| Magnitude response, ref 1 kHz | 20 Hz, -20 dBu, test circuit 1 | -0.25 dB | -0.09 dB | ±0.0 dB |
| Magnitude response, ref 1 kHz | 20 kHz, -20 dBu, test circuit 1 | -0.25 dB | -0.10 dB | +0.1 dB |
| Deviation from linear phase (DLP) | 20 Hz to 20 kHz, -20 dBu, test circuit 1 | +1.7/-0° | ±3.0° | |
| Distortion (THD) | 1 kHz, -20 dBu, test circuit 1 | <0.001% | ||
| Distortion (THD) | 20 Hz, -20 dBu, test circuit 1 | 0.036% | 0.15% | |
| Maximum 20 Hz input level | 1% THD, test circuit 1 | 0 dBu | +2.0 dBu | |
| Common – mode rejection ratio (CMRR) 600 Ω balanced / unbalanced source | 60 Hz, test circuit 2 / 3 | 130 dB / 155 dB | ||
| Common – mode rejection ratio (CMRR) 600 Ω balanced / unbalanced source | 3 kHz, test circuit 2 / 3 | 80 dB / 65 dB | 95 dB / 80 dB | |
| Recommended source impedance | ouput impedance of device driving ISO-MAX input | 0 Ω | 150 Ω | 500 Ω |
| Recommended load impedance | input impedance of device loading ISO-MAX output | 1.0 kΩ | 1.5 kΩ | |
| Output impedance, Zo | 1 kHz, test circuit 1 | 231 Ω | ||
| Optimal cable length | input | 8 m (26’) | 30 m (100’) | |
| Optimal cable length | output | 30 m (100’) | 100 m (300’) | |
| Temperature range | operation or storage | 0°C | 70°C | |
| Input to Output Voltage Difference* | any input to any output shield or any shield to case, 60 Hz | 24 V RMS 34 V peak |
Graphs
Phase Distortion (DLP)
Frequency Response
THD vs Level at Low Frequencies
THD vs Frequency at Various Levels
