Applications
PB-2XX as a universal isolator
The PB-2XX may be connected anywhere in the signal chain. This makes it a great choice for machine rooms in a broadcast facility where different varying power systems throughout can introduce noise.
PB-2XX in the studio
Recording and broadcast studios require noise-free signal transfer while delivering the most accurate sound possible. The PB-2XX eliminates ground loops and lowers RF without introducing distortion, phase shift or artifact.
Specifications
1:1 series/series configuration, all levels are input unless noted
| PARAMETER | CONDITIONS | MINIMUM | TYPICAL | MAXIMUM |
|---|---|---|---|---|
| Input impedance, Zi | 1 kHz, +4 dBu, test circuit 1 | 743 Ω | 750 Ω | 757 Ω |
| Voltage gain | 1 kHz, +4 dBu, test circuit 1 | -2.1 dB | -1.9 dB | -1.7 dB |
| Magnitude response, ref 1 kHz | 20 Hz, +4 dBu, test circuit 1 | -0.2 dB | -0.06 dB | ±0.0 dB |
| 20 kHz, +4 dBu, test circuit 1 | -1.0dB | -0.02 dB | +0.1 dB | |
| Deviation from linear phase (DLP) | 20 Hz to 20 kHz, +4 dBu, test circuit 1 | +0.6/-0° | ±2.0° | |
| Distortion (THD) | 1 kHz, +4 dBu, test circuit 1 | <0.001% | ||
| Distortion (THD) | 20 Hz, +4 dBu, test circuit 1 | 0.025% | 0.10% | |
| Maximum 20 Hz input level | 1% THD, test circuit 1 | +19 dBu | +21 dBu | |
| Input common mode rejection ratio (CMRR) 600 Ω balanced source | 60 Hz, test circuit 2 | 125 dB | ||
| Input common mode rejection ratio (CMRR) 600 Ω balanced source | 3 kHz, test circuit 2 | 75 dB | 95 dB | |
| Output common mode rejection ratio (CMRR) 600 Ω balanced load | 60 Hz, test circuit 3 | 110 dB | ||
| Output common mode rejection ratio (CMRR) 600 Ω balanced load | 3 kHz, test circuit 3 | 80 dB | ||
| Output impedance, Zo | 1 kHz, test circuit 1 | 750 Ω | ||
| Turns ratio | primary to secondary | 0.999:1 | 1.000:1 | 1.001:1 |
| Optimal cable length | input | 50 m (165’) | 200 m (650’) | |
| Optimal cable length | output | 30 m (100’) | 100 m (325’) | |
| 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 | 250 V RMS |
Graphs
Phase Distortion (DLP)
Frequency Response
THD vs Level at Low Frequencies
THD vs Frequency at Various Levels
